DISC COUPLINGS 08 21 Quality Products for Mechanical & Fluid Power www.jbj.co.uk/disc-couplings.html
Advantages of the Lovejoy Disc Coupling » Eliminates the need for lubrication and coupling maintenance » Coupling can be inspected without disassembly » Condition of disc packs can be inspected with a strobe light while themachine is running. Note: It is not recommended that couplings be operated without coupling guards. » Easy to assess equipment misalignment. » Torsionally rigid without any backlash. » No wearing parts. » Resistance to harsh environments. » Long life when properly sized and aligned. » High power density (higher torque for a given outside diameter). » Lovejoy supports the API-610 Standard up to 3,800 RPM. » Unitized disc packs ensure repeatability necessary for meeting the balance and piloting requirements as mandated by API-610. Available with Overload Bushings to protect the coupling frommomentary torque overloads. » Prevents the disc pack from being plastically deformed. » Allows for shorter BSE (shaft separation) because bolts can be turned to face inward. » Special orientation of bolts allows the bolts to be tightened using a torque wrench instead of nuts. (Normal is to tighten nuts with torque wrench). #DriveLineHarmony www.jbj.co.uk/disc-couplings.html
Page Overview ......................................................................... 4 Selection process .................................................................... 6 Application service factors, selection data...................................................... 7 Disc Coupling Selection Worksheet ......................................................... 8 Specifications Performance Data ........................................................... 9 SU-6 Performance Data ................................................................ 10 SU-6 Dimensional Data ................................................................ 11 SX-6 Performance Data ................................................................ 12 SX-6 Dimensional Data ................................................................ 13 SX-8 Performance Data ................................................................ 14 SX-8 Dimensional Data ................................................................ 15 SXC-6 Performance Data ............................................................... 16 SXC-6 Dimensional Data ............................................................... 17 SXCS-6 Performance Data .............................................................. 18 SXCS-6 Dimensional Data .............................................................. 19 SXCST-6 Performance Data ............................................................. 20 SXCST-6 Dimensional Data ............................................................. 21 DI-6 Performance Data ................................................................ 22 DI-6 Dimensional Data ................................................................ 23 DI-8 Performance Data ................................................................ 24 DI-8 Dimensional Data ................................................................ 25 DIR-6 and DILR-6 Performance / Selection Process ............................................... 26 DIRA-6 and DILRA-6 Performance / Dimensional Data ............................................. 27 Examples ........................................................................ 28 Mechanical Power Transmission Disc Couplings Contents #DriveLineHarmony www.jbj.co.uk/disc-couplings.html The details contained within this catalogue are reproduced in accordance with the latest information at publication of this catalogue. Errors & Omissions Excepted Last update: 09/08/2021
#DriveLineHarmony Mechanical Power Transmission Disc Couplings UK Distributor 2 www.jbj.co.uk/disc-couplings.html jbj Techniques are the UK distributor of R & L Hydraulics power transmission products.
#DriveLineHarmony 3 Mechanical Power Transmission Disc Couplings Safety Warning Safety Warning. When using any of these products, you must follow these instructions and take the following precautions. Failure to do so may cause the power transmission product to break and parts to be thrown with sufficient force to cause severe injury or death. Refer to this catalogue for proper selection, sizing, horsepower, torque range, and speed range of power transmission products, including elastomeric elements for couplings. Follow the installation instructions included with the product, and in the individual product catalogues for proper installation of power transmission products. Do not exceed catalogue ratings. During start up and operation of power transmission product, avoid sudden shock loads. Coupling assembly should operate quietly and smoothly. If coupling assembly vibrates or makes beating sound, shut down immediately, and recheck alignment. Shortly after initial operation and periodically thereafter, where applicable, inspect coupling assembly for: alignment, wear of elastomeric element, bolt torques, and flexing elements for signs of fatigue. Do not operate coupling assembly if alignment is improper, or where applicable, if elastomeric element is damaged, or worn to less than 75% of its original thickness. For all power transmission products, you must install suitable safety guards. Do not start power transmission product before suitable guards are in place. Failure to properly guard these products may result in severe injury or death from personnel contacting moving parts or from parts being thrown from assembly in the event the power transmission product fails. Do not use any of these power transmission products for elevators, man lifts, or other devices that carry people. If the power transmission product fails, the lift device could fall resulting in severe injury or death. If you have any questions please contact the jbj Techniques technical office telephone: +44 (0)1737 767493 email: info@jbj.co.uk www.jbj.co.uk/disc-couplings.html
jbj Techniques offer a wide variety of superior disc coupling products designed tomeet the application needs of today’s worldwide power transmission market. Using advanced design techniques, implementation of Finite Element Analysis, and extensive testing of materials, an innovative disc pack profile design has been developed, revolutionary to traditional disc pack designs found in themarket. This disc pack can accommodate 1/2° to 1-1/2° of angular misalignment . Lovejoy disc packs are manufactured using high grade stainless steel (AISI-301), ensuring high strength, high endurance to fatigue, and resistance to most environmental conditions. These disc couplings utilize unitized disc packs with both 6 or 8 bolt designs. The 8 bolt design can transmit greater torque than the 6 bolt design, however, it is not able to accommodate as much angular misalignment. Lovejoy couplings can be fitted with overload bushings to protect the disc pack during momentary torsional overloads. Offered in a variety of configurations to fit most applications. In addition, jbj Techniques can customize a coupling to meet many special requirements such as close coupled, dropout centres, electrical insulation, vertical mounting, and safety couplings. A notable design offered by Lovejoy is the reduced moment (DI Type) coupling that meets the anti-flail device requirements mandated in API-610 while offering a low weight and short centre of gravity to bearing distance. The design and manufacture of Lovejoy disc couplings is integrated into a certified Quality System according to ISO-9001 to fulfill the high quality requirements of Lovejoy customers. Advantages of the Lovejoy Disc Coupling » Eliminates the need for lubrication and coupling maintenance » Coupling can be inspected without disassembly » Condition of disc packs can be inspected with a strobe light while themachine is running. Note: It is not recommended that couplings be operated without coupling guards. » Easy to assess equipment misalignment. » Torsionally rigid without any backlash. » No wearing parts. » Resistance to harsh environments. » Long life when properly sized and aligned. » High power density (higher torque for a given outside diameter). » Lovejoy supports theAPI-610 Standard up to 3,800 RPM. » Unitized disc packs ensure repeatability necessary for meeting the balance and piloting requirements as mandated byAPI-610. Available with Overload Bushings to protect the coupling frommomentary torque overloads. » Prevents the disc pack from being plastically deformed. » Allows for shorter BSE (shaft separation) because bolts can be turned to face inward. » Special orientation of bolts allows the bolts to be tightened using a torque wrench instead of nuts (Normal is to tighten nuts with torque wrench). Mechanical Power Transmission Disc Couplings Overview 4 www.jbj.co.uk/disc-couplings.html #DriveLineHarmony
5 SU Type SX Type DI Type SXC Type SXCS Type SXCST Type Mechanical Power Transmission Disc Couplings Overview Industrial SU Type The SU Type coupling has a single flex plane with two hubs and a single disc pack. It is suitable for angular and axial misalignment only. Two SU couplings are often combined with a shaft to make a floating shaft coupling. The shaft can be hollow for long light weight floating shaft couplings. Industrial SX Type This is the standard coupling type that includes two hubs, a stock length spacer designed to meet industry standard lengths, and two unitized disc packs. The coupling has two flex planes, one at each disc pack, allowing this coupling to accommodate parallel, angular, and axial misalignment with specified limits. The coupling is available in 6 and 8 bolt designs and bore sizes up to 330mm on the largest size. Custom spacer lengths can be manufactured to meet special shaft separations required for specific applications. The SX coupling can be fitted with overload bushings to protect the disc packs in over torque conditions and can act as an anti-flail device. SX couplings are assembled at the time of installation on the equipment where the coupling will be in service. Industrial DI Type The DI Type coupling has a “Drop-In” spacer assembly that is assembled at the factory. The coupling consists of two hubs and a spacer assembly comprising of the spacer, two unitized disc packs, and two guard rings. The disc packs are bolted to the spacer and guard rings at the factory using the torque values recommended by Lovejoy for the disc pack bolts. With the hubs mounted on the shafts, the entire disc pack assembly can be “Dropped In” place between the two hubs. The hubs are piloted to ensure proper centring of the spacer assembly. This piloting serves as an anti-flail feature and aids in the coupling’s ability to meet the balance standards mandated by API. This style coupling is designed to meet the balance and anti-flail requirements specified in API-610. Oversized, or Jumbo, hubs are available for use with the DI Type coupling to allow for larger bore sizes on most DI coupling sizes. This allows for the use of smaller DI couplings in applications where a smaller size coupling can still accommodate the application torque. Industrial SXC Type The SXC Type is the close coupled variation of the SX Type coupling. The SXC is similar to the SX coupling in that the disc packs are attached when the coupling is installed. In the close coupled units, the hubs are turned inward and are mounted inside the spacer. Note that with the hubs inside the spacer, the maximum bore allowed in the hub will be decreased. The SXC couplings can be used with one or both hubs turned outward to allow the coupling to accommodate different shaft separations. Industrial SXCS and SXCST Types The SXCS and SXCST Types have split spacers and the disc packs can be serviced or removed without moving the hubs on the shafts and without moving the equipment. The SXCS Type has the bolts that connect the hubs to the split spacer installed from the ends of the couplings. The SXCST have the bolts installed from inside the spacer pointing outward towards the hubs. Additional Types Additional types of Disc couplings are illustrated on page 28. Please contact jbj Technical office for couplings shown on these pages, or for special requirements not shown in this catalogue. www.jbj.co.uk/disc-couplings.html #DriveLineHarmony
Mechanical Power Transmission Disc Couplings Selection Process 6 Disc Coupling Selection Process 1) Determine coupling type suitable for application. Angular, axial and parrallel misalignment properties need to be considered. Size will be determined by the selection torque and shaft diameters. 2) Next, calculate the application torque and apply the service factor to calculate the selection torque. Application torque Application torque x service factor = selection torque 3) Use the relevant table on the relevant page for model of coupling for torque rating and shaft size. Sometimes to have the right bore size it may be necessary to have a coupling with more than sufficient torque capabilities. 4) Ensure selected coupling has sufficient speed rating using tables provided. 5) To determine if the coupling will handle the parallel misalignment, use the trig function of tan 1° = offset allowed for 25.4 mm = 0.0174 Multiply the 0.0174 x the distance between disc packs or ‘S’ dimension from the table on page 13. Recommended Information Needed to Specify a Disc Coupling from jbj Techniques Limited. The following information should be provided when placing an order to ensure the proper selection of the disc coupling: » Application and type of duty » Type of driver (engine, motor, turbine, etc.) » Speed and horsepower » Type of driven equipment » Shaft sizes and separation » Space limitations for major diameter and length » Type of fit (Interference fit default, clearance fit and shaft locking device preparation available upon request) » Special requirements (vertical mounting, drop out center, flange mount, electrically insulated, API-610 up to 3,800 RPM, shear pins, balancing, etc.) Nm = (kW x 9550) RPM www.jbj.co.uk/disc-couplings.html #DriveLineHarmony
7 Mechanical Power Transmission Disc Couplings Overview Driven equipment SFA BLOWERS, FANS Centrifugal 1.0 Lobe / Vane / Turboblowers 1.25 Forced draught fans 1.5 Induc.draught with damper 1.5 Induc.draught without control 2.0 Cooling towers 2.0 CHEMICAL INDUSTRY Agitators (thin liquid) 1.0 Agitators (viscous liquid) 1.5 Centrifuges (light) 1.25 Centrifuges (heavy) 1.75 Mixers 1.75 COMPRESSORS Centrifugal 1.0 Lobe/Rotary 1.25 Turbo-compressors 1.75 Reciprocating: 1 to 3 cylinders 3.0 4 or more cylinders 1.75 CONVEYOR, HOISTS , ELEVATORS * * Conveyors: Screw / Apron / Belt / Chain 1.25 Bucket / Rotary / Lifts 1.5 Reciprocating 3.0 Hoists: Medium duty 2.5 Heavy duty 3.0 Elevators: Centrifugal and gravity disc 1.25 DREDGERS 2.0 FOOD INDUSTRY Packaging machines and fillers 1.25 Kneading machines 1.5 Cane crushers 1.5 Cane cutters 1.5 Cane mills 2.0 Sugar beet cutters 1.5 Sugar beet washing machines 1.5 GENERATORS Even load 1.0 Frequency converters 1.5 Welding generators 2.0 MACHINE TOOLS Main Drives 2.0 Auxiliary and transverse drives 1.5 METAL WORKING Presses/Hammers 2.0 Straighteners 2.0 Bending machines / Shears 1.5 Punching machines 2.0 MARINE APPLICATIONS 2.5 MINING AND STONES Crushers 2.5 Mills 2.5 Mine ventilators 2.0 Vibrators 1.5 OIL INDUSTRY Pipeline pumps 1.5 Rotary drilling equipment 2.0 PAPER INDUSTRY Calenders 2.0 Couches 2.0 Drying cylinders 2.25 Pulpers 2.0 Pulp grinders 2.0 Suction rolls 2.0 Wet presses 2.0 Reels 2.0 Agitators 2.0 PLASTIC INDUSTRY Calenders, Crushers, Mixers 1.75 PUMPS Centrifugal, General Feed or Boiler Feed 1.0 Centrifugal, Slurry 1.5 Centrifugal, Dredge 2.0 Rotary / Gear / Lobe or Vane 1.5 Reciprocating: 1 cylinder 3.0 2 cylinders, single acting 2.0 2 cylinders, double acting 1.75 3 cylinders or more 1.5 ROLLING MILLS Billet shears 2.5 Chain transfers 1.5 Cold rolling mills 2.0 Continuous casting plants 2.5 Cooling beds 1.5 Cropping shears 2.0 Cross transfers 1.5 Descaling machines 2.0 Heavy and medium duty mills 3.0 Ingot and blooming mills 2.5 Ingot handling machinery 2.5 Ingot pushers 2.5 Manipulators 2.0 Plate shears 2.0 Roller adjustment drives 1.5 Roller straighteners 1.5 Roller tables (heavy) 2.5 Roller tables (light) 1.5 Sheet mills 2.5 Trimming shears 1.5 Tube and welding machines 2.0 Winding machines 1.5 Wire drawing benches 1.5 RUBBER INDUSTRY Extruder 1.75 Calender 2.0 Mixing mill / Refiner / Crusher 2.5 STEEL PLANTS Blast furnace blowers 1.5 Converters 2.5 Inclined blast furnace elev. 2.0 Crushers 2.0 TEXTILE MACHINES Printing and drying machines 1.5 Tanning vats 1.5 Calenders 1.5 Looms 1.5 WATER AND WASTE INDUSTRY Aerators, Screw pumps, Screens 1.5 WOOD WORKING MACHINERY Trimmers, Barkers, Saws, Planes 2.0 Note: * The coupling is not recommended or be warranteed if people are transported. Driving Machine Service Factor SF DTable 2 Driving equipment SFD Multi-cylinder engine 8 or more 0.5 6 1.0 4 or 5 1.5 Less than 4 Refer to jbj Techniques. Variable speed motors 0.8 Electric motors** and turbines 0 **Except variable speed motors, please consult jbj Techniques technical office if axial excitations are foreseeable either on the driving or driven side. Selection Procedure 1. Select the coupling type. 2. Select the driven machine service factor SF from Table 1. A 3. Select the driving machine service factor SF from Table 2. D Care should be taken when the driving machine is other than a standard electric motor or turbine. Some engines will impose extra fluctuations on the drive system and allowance should be made accordingly. Please refer to Table 2. A torsional coupling may be required for diesel drives. The two service factors SF and SF must be added resulting in the combined service factor SF. SF = SF + SF A D A D Driven Machine Service Factor SF ATable 1. www.jbj.co.uk/disc-couplings.html #DriveLineHarmony
Mechanical Power Transmission Disc Couplings Selection Worksheet 8 Customer Name: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Contact Name: Phone Number: Email Address: 1. Type of Driver (Electric Motor, Combustion Engine, Gearbox, etc.) : For combustion engines, define type Gasoline, Diesel, Natural Gas, etc. . . . . . . . . . . . . . . Number of cylinders . . . . . . . . . 2. Driver Horse Power . . . . . . . . . . 3. Driver or Gearbox output RPM . . . . . . . . . . . . . . . . . . Retrieve the Application Service Factor from Page D-7 . . . . . . . . . . . . . . . . then calculate the Selection Torque using the following formula: Torque (in-lbs) = kW x 63025 x Service Factor = Selection Torque = . . . . . . . Nm RPM 4. Driver Shaft Diameter . . . . . . . . Keyway size : KW Width . . . . . . . KW Height . . . . . . . Specify Clearance Fit, Interference Fit, Metric (P7, H7, etc), Shaft Locking Device, and Set Screw or No Set Screw 5. Driver Usable Shaft Length . . . . . . . . . . . (Measure from the end of the shaft to any obstruction) 6. Distance between shaft ends (BSE) . . . . . . . . . . . . . . . 7. Type of Driven Equipment . . . . . . . . . . . . . . . . . . . . . . . 8. Driven Shaft Diameter . . . . . . . . . . . Keyway size : KW Width . . . . . . . KW Height . . . . . . . . Specify Clearance Fit, Interference Fit, Metric (P7, H7, etc), Shaft Locking Device, and Set Screw or No Set Screw 9. Driven Usable Shaft Length . . . . . . . . . . (Measure from the end of the shaft to any obstruction) 10.Total Mounting Length . . . . . . . . . . . . . (Advise of any obstructions, walls, beams, guards, pipes, etc.) 11. For Tapered Shafts specify the following: Minimum or Maximum Taper diameter . . . . . . . . . . . . . . . . . Taper Length . . . . . . . . . . . T (Taper ratio) . . . . . . . . . . . Gap or Hub Overhang amount . . . . . . . . . . . . . . . . . . . . . . . Locknut Width . . . . . . . . Size of nut cross corners . . . . . . . . . . . Thread Size . . . . . . . . . Thread Length . . . . . . . . . . . . . . Washer Diameter (if used) . . . . . . . Washer Width . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ACROSS CORNER www.jbj.co.uk/disc-couplings.html #DriveLineHarmony
9 Mechanical Power Transmission Disc Couplings Overview Performance Data by Size Note * indicates: See Page D-6 for additional information regarding misalignment. 1 indicates: Torsional stiffness is provided for one disc pack. This should be combined with hubs, spacers, etc. as calculated from ANSI/AGMA 9004-A99. 2 indicates: Axial misalignment is provided for couplings with two disc packs. 3 indicates: Angular misalignment is provided per single disc pack. For larger sizes, please contact jbj Techniques Limited technical office, telephone: +44 (0)1737 767493 or email: info@jbj.co.uk www.jbj.co.uk/disc-couplings.html #DriveLineHarmony
Mechanical Power Transmission Disc Couplings SU-6 Performance Data 10 SU-6 Type Industrial Coupling The SU Type coupling is a 6 bolt single flex plane coupling which consists of two hubs and one disc pack kit. It is only suitable for the specified axial and angular misalignment and does not accommodate parallel misalignment. It is often combined with solid shafts to make floating shaft couplings. See Page 28 for a picture of an SXFS type floating shaft coupling. Note * indicates: Operating speed must be equal or less than permissible speed. 2 indicates: Couplings as manufactured can accommodate maximum speeds as listed. Higher speeds listed as 'Bal' require special balancing. 3 indicates: The maximum bores shown are for cylindrical or taper shafts with keys. For splines and other bore types, contact jbj Techniques Limited technical office, telephone: +44 (0)1737 767493 or email: info@jbj.co.uk 4 indicates: Weight is given for a complete coupling with maximum bores. 5 indicates: Axial misalignment is given for one disc pack. 6 indicates: Angular misalignment is given for one disc pack. There is no parallel misalignment for the SU Type. Features » Unitized disc pack. » Infinite life when properly aligned. » Torsionally rigid without any back lash. » No need for lubrication or maintenance. » No wearing parts and high resistance to harsh environmental conditions. » Larger sizes are available upon request. www.jbj.co.uk/disc-couplings.html #DriveLineHarmony
11 Mechanical Power Transmission Disc Couplings SU-6 Dimensional Data Note 3 indicates: The maximum bores shown are for cylindrical or taper shafts with keys. For splines and other bore types, contact jbj Techniques Limited technical office, telephone: +44 (0)1737 767493 or email: info@jbj.co.uk Metric dimensions are rounded to the nearest 'mm' except where otherwise shown. Larger sizes available upon request. www.jbj.co.uk/disc-couplings.html #DriveLineHarmony
Mechanical Power Transmission Disc Couplings SX-6 Performance Data 12 SX-6 Type Industrial Coupling The SX-6 Type is a standard coupling with two hubs, a spacer, and two disc pack kits. The coupling has two flex planes (one at each disc pack) so it can accommodate parallel misalignment by the angular misalignment in each disc pack. This configuration will also accommodate axial misalignment within the specified limits. Note * indicates: Operating speed must be equal or less than permissible speed. 2 indicates: Couplings as manufactured can accommodate maximum speeds as listed. Higher speeds listed as 'Bal' require special balancing. 3 indicates: The maximum bores shown are for cylindrical or taper shafts with keys. For splines and other bore types, contact jbj Techniques Limited technical office, telephone: +44 (0)1737 767493 or email:info@jbj.co.uk 4 indicates: Weight is given for a complete coupling with maximum bores. 5 indicates: Axial misalignment is given for one disc pack. 6 indicates: Angular misalignment is given for one disc pack. For higher torque capacities, see SX-8 Type couplings on pages 14 and 15. Features » Unitized disc pack. » Infinite life when properly aligned. » Accommodates angular, axial, and parallel misalignment. » Torsionally rigid without any back lash. » No need for lubrication or maintenance. » No wearing parts and high resistance to harsh environmental conditions. » Overload bushings are available, see page 4 www.jbj.co.uk/disc-couplings.html #DriveLineHarmony
13 Mechanical Power Transmission Disc Couplings SX-6 Dimensional Data Note 3 indicates: The maximum bores shown are for cylindrical or taper shafts with keys. For splines and other type bores contact jbj Techniques Limited technical office, telephone: +44 (0)1737 767493 or email:info@jbj.co.uk 7 indicates: BSE is the distance between shaft ends and is a variable parameter. Metric dimensions are rounded to the nearest 'mm' except where otherwise shown. www.jbj.co.uk/disc-couplings.html #DriveLineHarmony
Mechanical Power Transmission Disc Couplings SX-8 Performance Data 14 SX-8 Type Industrial Coupling The SX-8 Type is a standard coupling with two hubs, a spacer, and two disc pack kits. The coupling has two flex planes (one at each disc pack) so it can accommodate parallel misalignment by the angular misalignment in each disc pack. This configuration will also accommodate axial misalignment within the specified limits. Note * indicates: Operating speed must be equal or less than permissible speed. 2 indicates: Couplings as manufactured can accommodate maximum speeds as listed. Higher speeds listed as 'Bal' require special balancing. 3 indicates: The maximum bores shown are for cylindrical or taper shafts with keys. For splines and other bore types, contact jbj Techniques Limited technical office, telephone: +44 (0)1737 767493 or email: info@jbj.co.uk 4 indicates: Weight is given for a complete coupling with maximum bores. 5 indicates: Axial misalignment is given for one disc pack. 6 indicates: Angular misalignment is given for one disc pack. For larger sizes and higher torque capacities, contact jbj Technical office, telephone +44 (0)1737 767493 or email: info@jbj.co.uk Features » Unitized disc pack. » Infinite life when properly aligned. » Accommodates angular, axial, and parallel misalignment. » Torsionally rigid without any back lash. » No need for lubrication or maintenance. » No wearing parts and high resistance to harsh environmental conditions. www.jbj.co.uk/disc-couplings.html #DriveLineHarmony
15 Mechanical Power Transmission Disc Couplings SX-8 Dimensional Data Note 3 indicates: The maximum bores shown are for cylindrical or taper shafts with keys. For splines and other type bores contact jbj Techniques Limited technical office, telephone: +44 (0)1737 767493 or email: info@jbj.co.uk 7 indicates: BSE is the distance between shaft ends and is a variable parameter. Metric dimensions are rounded to the nearest 'mm' except where otherwise shown. www.jbj.co.uk/disc-couplings.html #DriveLineHarmony
Mechanical Power Transmission Disc Couplings SXC-6 Performance Data 16 SXC-6 Type Industrial Coupling The SXC-6 Type is the standard 6 bolt coupling with two hubs, two disc packs and a spacer. The hubs can both be turned inward to accommodate close coupled applications or one hub can be turned outward to accommodate additional BSE’s (shaft separation). The coupling has two flex planes (one at each disc pack) so it can accommodate parallel misalignment by the angular misalignment in each disc pack. This configuration will also accommodate axial misalignment within the specified limits. Note 1 indicates: Operating speed must be equal or less than permissible speed. Permissible speeds could be limited by the weight and the critical speeds of the spacer. 2 indicates: Couplings as manufactured can accommodate maximum speeds as listed. Higher speeds up to the value shown as 'Bal' require special balancing. 3 indicates: The maximum bores shown are for cylindrical or taper shafts with keys. For other type of connections contact jbj Techniques Limited technical office, telephone: +44 (0)1737 767493 or email: info@jbj.co.uk 4 indicates: Weight is given for a complete coupling with minimum BSE and maximum bores. 5 indicates: Axial misalignment is given for two disc packs. 6 indicates: Angular misalignment is given for one disc pack. SU/SX hubs can be used (turned outward) to accommodate maximum bore sizes for the specified hub. Features » Unitized disc packs » Infinite life if properly aligned » Torsionally rigid without any back lash » No need for lubrication or maintenance » No wearing parts and high resistance to harsh environmental conditions » Can be combined with SU/SX hub for increased bore capacity (See page 15). (Close Coupled) www.jbj.co.uk/disc-couplings.html #DriveLineHarmony
17 Mechanical Power Transmission Disc Couplings SXC-6 Dimensional Data Note 7 indicates: BSE is the distance between shaft ends and is a variable parameter. 8 indicates: Customer is responsible for ensuring there is enough room between the coupling and equipment to install the bolts and properly torque them with a torque wrench. Additional shaft length may be required. See Disc Coupling Worksheet, page 8 item 5. Metric dimensions are rounded to the nearest 'mm' except where otherwise shown. Id1 – ID2 Dimensional Data on page 16. BSE1: To calculate the BSE 1 (Between Shaft Ends) with one hub turned out BSE 1 = BSE + LTB – FW OAL1: To calculate the OAL 1 (Overall Length) with one hub turned out OAL 1 = OAL + LTB - FW (Close Coupled) www.jbj.co.uk/disc-couplings.html #DriveLineHarmony
Mechanical Power Transmission Disc Couplings SXCS-6 Performance Data 18 SXCS-6 Type Industrial Coupling The SXCS Type is the standard 6 bolt coupling with two hubs, two mounting rings, two disc packs and a split spacer designed for ease of installation and maintenance. Custom spacer lengths can be specified for special applications. The coupling has two flex planes (one at each disc pack) allowing it to accommodate parallel misalignment by the angular misalignment in each disc pack. This configuration will also accommodate axial misalignment within the specified limits. Note 1 indicates: Operating speed must be equal or less than permissible speed which is limited by the weight and critical speed of the spacer. 2 indicates: Couplings as manufactured can accommodate maximum speeds as listed. Higher speeds up to the value shown as 'Bal' require special balancing. 3 indicates: The maximum bores shown are for cylindrical or taper shafts with keys. For other type of connections contact jbj Techniques Limited technical office, telephone: +44 (0)1737 767493 or email: info@jbj.co.uk 4 indicates: Weight is given for a complete coupling with minimum BSE and maximum bores. 5 indicates: Axial misalignment is given for two disc packs. 6 indicates: Angular misalignment is given for one disc pack. Features » Unitized disc packs » Infinite life if properly aligned » Torsionally rigid without any back lash » No need for lubrication or maintenance » No wearing parts and high resistance to harsh environmental conditions » Disc packs can be replaced without moving equipment. » For larger sizes, refer to SXCST couplings, see page 20. (Close Coupled Split Spacer) www.jbj.co.uk/disc-couplings.html #DriveLineHarmony
19 Mechanical Power Transmission Disc Couplings SXCS-6 Dimensional Data Note 3 indicates: The maximum bores shown are for cylindrical or taper shafts with keys. For splines and other types of bores, contact jbj Techniques Limited technical office, telephone: +44 (0)1737 767493 or email: info@jbj.co.uk 7 indicates: BSE is the distance between shaft ends and is a variable parameter. 8 indicates: OAL is measured from the end of the hubs and does not include the bolt heads. Customer is responsible for ensuring there is enough room between the coupling and equipment to install the bolts and properly torque them with a torque wrench. Additional shaft length may be required. See Disc Coupling Worksheet, page 8 item 5. (Close Coupled Split Spacer) www.jbj.co.uk/disc-couplings.html #DriveLineHarmony
Mechanical Power Transmission Disc Couplings SXCST-6 Performance Data 20 SXCST-6 Type Industrial Coupling The SXCST Type is a standard 6 bolt coupling consisting of two hubs, two mounting rings, two disc packs and a split spacer. Custom spacer lengths can be specified for special applications. The coupling has two flex planes (one at each disc pack) so it can accommodate parallel misalignment by the angular misalignment in each disc pack. This configuration will also accommodate axial misalignment within the specified limits. Note 1 indicates: Operating speed must be equal or less than permissible speed which is limited by the weight and critical speed of the spacer. 2 indicates: For higher speeds contact jbj Techniques Limited technical office, telephone: +44 (0)1737 767493 or email: info@jbj.co.uk 3 indicates: The maximum bores shown are for cylindrical or taper shafts with keys. For splines and other types of bores, contact jbj Techniques Limited. n 4 indicates: Axial misalignment is given for two disc packs. n 5 indicates: Angular misalignment is given for one disc pack. Features » Unitized disc pack. » Infinite life when properly sized and aligned. » Accommodates angular, axial, and parallel misalignment. » Torsionally rigid without any back-lash. » No need for lubrication or maintenance. » No wearing parts and high resistance to harsh environmental conditions. » Close coupled. » Split spacer design allows for ease of maintenance and disc pack removal or replacement without moving equipment. (Close Coupled Split Spacer) www.jbj.co.uk/disc-couplings.html #DriveLineHarmony
21 Mechanical Power Transmission Disc Couplings SXCST-6 Dimensional Data Note 7 indicates: BSE is the distance between shaft ends and is a variable parameter. Metric dimensions are rounded to the nearest 'mm' except where otherwise shown. Customer is responsible for ensuring there is enough room between the coupling and equipment to install the bolts and properly torque them with a torque wrench. Additional shaft length may be required. See Disc Coupling Worksheet, page 8 item 5. Id1 – ID2 Dimensional Data on page 20. (Close Coupled Split Spacer) www.jbj.co.uk/disc-couplings.html #DriveLineHarmony
Mechanical Power Transmission Disc Couplings DI-6 Performance Data 22 DI-6 Type Industrial Coupling The DI Type coupling is the standard 6 bolt coupling with two hubs and a spacer assembly that can be installed or removed without disturbing the equipment and hubs and without removing the disc packs from the spacer assembly. Custom spacer lengths can be specified for special applications. The coupling has two flex planes (one at each disc pack) so it can accommodate parallel misalignment by the angular misalignment in each disc pack. This configuration will also accommodate axial misalignment within the specified limits. Note 1 indicates: Operating speed must be equal or less than permissible speed which is limited by the weight and critical speed of the spacer. n 2 indicates: Couplings as manufactured can accommodate maximum speeds as listed. Higher speeds up to the value shown as 'Bal' require special balancing. n 3 indicates: The maximum bores shown are for cylindrical or taper shafts with keys. For splines and other types of bores, contact jbj Techniques Limited. n 4 indicates: Weight is given for a complete coupling with maximum bores. n 5 indicates: Axial misalignment is given for two disc packs. n 6 indicates: Angular misalignment is given for one disc pack. Features » Designed to meet the API 610 Standard. » Support for additional API requirements available on request. » Unitized disc pack. » Infinite life if properly aligned. » Torsionally rigid without any back lash. » No need for lubrication or maintenance. » No wearing parts and high resistance to harsh environmental conditions. (Drop In Centre) www.jbj.co.uk/disc-couplings.html #DriveLineHarmony
23 Mechanical Power Transmission Disc Couplings DI-6 Dimensional Data (Drop In Centre) Note 3 indicates: The maximum bores shown are for cylindrical or taper shafts with keys. For splines and other type bores, contact jbj Techniques Limited technical office, telephone: +44 (0)1737 767493 or email: info@jbj.co.uk Metric dimensions are rounded to the nearest 'mm' except where otherwise shown. Custom spacer sizes are available in both longer and shorter lengths. For a list of standard spacer sizes, see page 27. Standard BSE Sizes www.jbj.co.uk/disc-couplings.html #DriveLineHarmony
Mechanical Power Transmission Disc Couplings DI-8 Performance Data 24 DI-8 Type Industrial Coupling The DI Type coupling is the standard 8 bolt coupling with two hubs and a spacer assembly that can be installed or removed without disturbing the equipment and hubs and without removing the disc packs from the spacer assembly. Custom spacer lengths can be specified for special applications. The coupling has two flex planes (one at each disc pack) so it can accommodate parallel misalignment by the angular misalignment in each disc pack. This configuration will also accommodate axial misalignment within the specified limits. Note 1 indicates: Operating speed must be equal or less than permissible speed which is limited by the weight and critical speed of the spacer. n 2 indicates: Couplings as manufactured can accommodate maximum speeds as listed. Higher speeds up to the value shown as 'Bal' require special balancing. n 3 indicates: The maximum bores shown are for cylindrical or taper shafts with keys. For splines and other types of bores, contact jbj Techniques Limited technical office, telephone: +44 (0)1737 767493 or email: info@jbj.co.uk n 4 indicates: Weight is given for a complete coupling with maximum bores. n 5 indicates: Axial misalignment is given for two disc packs. n 6 indicates: Angular misalignment is given for one disc pack. Features » Designed to meet the API 610 Standard. » Support for additional API requirements available on request. » Unitized disc pack. » Infinite life if properly aligned. » Torsionally rigid without any back lash. » No need for lubrication or maintenance. » No wearing parts and high resistance to harsh environmental conditions » Puller holes standard with this design. (Drop In Centre) www.jbj.co.uk/disc-couplings.html #DriveLineHarmony
25 Mechanical Power Transmission Disc Couplings DI-8 Dimensional Data (Drop In Centre) Note 3 indicates: The maximum bores shown are for cylindrical or taper shafts with keys. For splines and other type bores, contact jbj Techniques Limited technical office, telephone: +44 (0)1737 767493 or email: info@jbj.co.uk Metric dimensions are rounded to the nearest 'mm' except where otherwise shown. Please Note, Lovejoy DI-6 and DI-8 Type Drop-In Spacer style couplings are specially piloted to provide anti-flail protection and prevent the spacer from coming out of the coupling if the disc packs or bolts fail. www.jbj.co.uk/disc-couplings.html #DriveLineHarmony
Mechanical Power Transmission Disc Couplings DIR-6 and DILR-6 26 DIR-6 and DILR-6 Type Industrial Coupling The DIR and DILR Type coupling is designed to be a direct replacement for floating shafts in flanged series floating shaft gear couplings. The DIR is provided with F-Style rigid gear coupling hubs and the DILR can be manufactured to work with existing rigid hubs without disturbing or moving the equipment. All spacers are manufactured to the customer’s specified length and are sized using a service factor of 2.0. The coupling has two flex planes (one at each disc pack) so it can accommodate parallel misalignment by the angular misalignment in each disc pack and it is suitable for axial displacement within specified limits. DILR Type couplings are manufactured slightly shorter than the DBFF dimension specified by the customer and shims are provided to aid in simplifying the installation. Selection Process for DIR, DIRA, DILR, and DILRA Disc Couplings The DILR and DILRA Type coupling are a direct replacement for a floating shaft style gear coupling. The DILR/DILRA is designed to utilize the hubs already on the customer’s equipment. The DILR drop in replacement will be manufactured slightly shorter that the DBFF and shims will be used for ease of maintenance. The DILRA is adjustable using an SLD (Shaft Locking Device) to make axial or length adjustments. Customers with multiple pieces of equipment with similar length couplings can stock one spare spacer that can be used as a replacement for more than one coupling. If the end user requires rigid hubs be provided with the coupling, a DIR or DIRA Type coupling will be recommended and the BSE (distance Between Shaft Ends) must be specified. Required Information: The end user should be prepared to provide the following information when contacting Lovejoy Technical Support: » Motor horse power and speed (include gearbox ratio – input and output). » Rigid hub sizes (if the customer is using existing F-Style rigid gear coupling hubs). » DBFF or distance between flange faces of the rigid hubs for DILRType. » BSE shaft separation can be specified for DIRType. » Shaft sizes for rigid hubs DIR and DIRA Type couplings. » For maximumbore sizes contact jbj Techniques technical office, telephone: +44 (0)1737 767493 or email: info@jbj.co.uk Features » No need for lubrication or maintenance. » Can utilize existing rigid Flanged Gear hubs or custompaper machine hubs (Beloit and Voith). » Can be inspected while in operation. » Can run at higher speeds than floating shaft gear couplings. » Unitized disc pack. » Infinite life if properly aligned. » Torsionally rigid withminimal back lash. » No wearing parts and high resistance to harsh environmental conditions. » Shim kits are standard for ease of installation and precise spacer positioning. » Anti Flail /Anti Fly piloting option is standard to prevent the spacer assembly from flying out if a disc pack and bolts fail. » Adjustable lengths using shaft locking devices. (Drop In Centre) www.jbj.co.uk/disc-couplings.html #DriveLineHarmony
27 Mechanical Power Transmission Disc Couplings DIRA-6 and DILRA-6 DIRA-6 and DILRA-6 Type Industrial Coupling The DIRA and DILRA type couplings are designed to be direct replacements for floating shafts in flanged series floating shaft gear couplings. This type uses existing or rigid F-Style gear coupling hubs. The DIRA/DILRA are similar to the DIR and DILR Types with the exception these incorporate the use of an SLD shaft locking device to make length adjustments instead of shims. The standard axial adjustment is +/- 2.0 inches for this type of coupling. Custom length adjustment amounts can be provided on request. The DIRA is provided with rigid hubs. The DILRA can be manufactured to serve as a direct drop in replacement for use with existing rigid hubs without disturbing or moving the equipment. All spacers are manufactured to the customer’s specified length and are sized using a service factor of 2.0. The coupling has two flex planes (one at each disc pack) so it can accommodate parallel misalignment by the angular misalignment in each disc pack and it is suitable for axial displacement within specified limits. (Drop In Centre) www.jbj.co.uk/disc-couplings.html #DriveLineHarmony
Mechanical Power Transmission Disc Couplings Examples 28 www.jbj.co.uk/disc-couplings.html #DriveLineHarmony
Getting the most out of your machinery often depends on close integration between all components. An organisation that manufactures and integrates all the diverse components of a drivetrain provides the experience to help you select the best component combination for your application. jbj Techniques’ in-house design team and manufacturing facility provide tailored solutions for your applications at competitive prices with quick delivery. The following examples are a simplistic view of how jbj Techniques assists customers. Hydraulic Adaptors Designed primarily to allow the close coupling of hydraulic pumps to a variety of prime movers, such as diesel / petrol engines, electric, air or hydraulic motors, they can also be used in the connection from prime mover to alternative driven parts i.e. gear boxes, generators, water or vacuum pumps etc. An additional range of engine front PTO adaptors, which provide additional connection between the engine pulley and the driven part are also available. The kit comprises of a and flexible bellhousing drive that are fully machined to suit the coupling driving and driven components. These can be to suit either shaft to shaft, flange (flywheel) to shaft or even flange to flange connections. Getting the most out of your equipment will demand close integration between all components. In specifying jbj Techniques as your preferred supplier, you will have selected a company with the experience to specify, manufacture and integrate all of the diverse components that will ensure the best component combination for your application. jbj's in house design team and manufacturing facility provide tailored solutions for your applications at competitive pricing and on-time deliveries. Pump shaft alignment is key to preventing unnecessary wear and damage to the pump shaft seal and bearing. Improper alignment may lead to premature pump failure. Also to be considered are unwanted torsional resonant frequencies in the system which can quickly cause damage to components in the drivetrain and reduce system life and performance. Improper pump installation can lead to premature failure, increased maintenance costs and reduced production levels of final product. jbj Techniques can advise on the correct installation of into Industrial / hydraulic pumps mobile / marine / machine tool / agricultural / offshore industries and can specify complete driveline systems from their extensive range of components which are available from stock or manufactured to order, albeit simple or complex, standard or bespoke. Electric Motor – Hydraulic Pump Adaptors (safe area) jbj Techniques Limited offer the most comprehensive range of in Europe. bellhousings Designed to connect electric motors with frame size IEC D56 - D400 (0.06kW – 750kW) and can be compatible with electric motor 'B5' or 'B14' flange configurations. Accompanying the metric frame units above is a complete range of mountings to suit Nema and imperial frame motors with 'C' face or 'D' flange fitments. With fully machined , torsionally flexible couplings or available, jbj ensure torsionally rigid couplings the most suitable combination is selected for the application in hand. As an example spider couplings are available in various materials including aluminium, grey cast iron, nodular iron, steel and stainless steels and can be finish machined with parallel, taper or splined bores to DIN, SAE, ANSI or ISO standards. Bellhousings can be manufactured in aluminium or cast iron material as standard, however, units can be produced in a variety of exotic materials on request. The aluminium product range is produced in either monoblock or composite formats giving great flexibility in design and allows for early delivery time, often with same or next day delivery possibilities. For applications where low noise levels are a quality products for mechanical & fluid power #DriveLineHarmony www.jbj.co.uk an excellence in engineering
ensuring a continuing high quality service in which customers can have complete confidence. “ “ requirement then a complete range of antivibration and noise reduction components add to the range. Electric motor – Hydraulic Pump Adaptors (hazardous area) Designed to meet the exacting safety standards of the offshore and chemical process industries, jbj Techniques produce certificated to adaptor kits Directive 2014/34/EU II2GD-IM2-TX -50 C< Service Temp < +105 C. Harmonised standards BS EN 1127:1, BS EN 13463:1, BS EN13463:5, BS EN 50303, BS EN 1834-1,BS EN 1834-3. Generally manufactured in Cast or Nodular iron, bellhousings can be produced in steel, stainless steel or alternative exotic materials on customer request. Couplings supplied for these applications are the jbj Techniques 'JXL' pin and bush range which provide an anti-static and flameproof drive which meet zone 1 area requirements, conforming to all of the above standards. Also available are spider and gear couplings which are certified to zone 2 standards. (Contact jbj Techniques for details). An important development of equipment for use within hazardous areas is the wet mount series of bellhousings. Commissioned to research and develop a product that would control the high temperature generated by a piston pump shaft seal when working within cycling applications. A little considered issue is the frictional heat generated at the shaft seal when the application requires the pump to cycle between different pressures causing the seal temperature to increase. This process will often take the seal temperature out and above the levels required by the relevant ATEX standards requirement. This specially designed assembly allows a pumped cooling flow to be passed over the seal face and through an auxiliary cooler, this in turn reduces the seal face temperature which can be maintained at an acceptable level. With a vast array of components to select from, jbj are well placed to provide all required components to support the required cooling system. Diesel Engine – Hydraulic Pump Adaptors A complete range of bellhousing and couplings exist for the connection of a diesel engine flywheel to a specified driven component, be it an oil hydraulic pump, water pump, generator or similar device. With the bellhousing available in various materials to suit all application areas. With a standard range to connect Diesel engines with SAE dimensions from SAE '6' to SAE '0' jbj are well placed to satisfy the majority of customer requirements. Couplings to complete the assembly are available in either torsionally flexible or torsionally rigid design ad can be supplied to suit SAE flywheel dimensions from SAE 6.5” to SAE 18”. For hydraulic pumps to be mounted to engines that do not conform to SAE dimensions, we offer a full range of assembly parts, some of which (but not all) are shown here » for diesel engines All bellhousings within this range can be finished machined to accept any, piston, vane or gear pump interfaces requested by customer. As with the electric motor range of product jbj offer complete solutions for ATEX environments, using our well proven 'JXL' coupling range which has standard design to connect to the engine flywheel. Directive 2014/34/EU II2GD-IM2-TX -50°C ≤ Service Temp ≤ +105°C. Harmonised Standards: BS EN 1127:1 BS EN 13463:1 BS EN 13463:5 BS EN 50303. Petrol Engine – Hydraulic Pump Adaptors Petrol engine adaptors have been developed for use with industrial petrol engines. Design exists to suit Honda, Briggs and Stratton, Kawasaki, Kubota, Hatz, Mag, Robin, Suzuki, Winsconsin, to name but a few, all adaptors can be finished to accept most hydraulic pumps. Adaptors to suit engine crankshaft drives and for vertical mounting are available on request. #DriveLineHarmony www.jbj.co.ukl to Large Combinations Small Individual Components
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