OVER-CENTRE CLUTCH UNITS TYPES BD & BDS Installation, operation & maintenance 12 24
Selection: Select the clutch unit taking into account the power and torque to be transmitted, maximum speed and radial load. BD units will require specific flywheel and housing sizes and BDS units must not be subjected to radial loads on the input shaft. Data required for selection is available in published literature and advice concerning service factors relating to specific applications should be obtained from the jbj Techniques Limited technical department, telephone: 01737 767493 or email: info@jbj.co.uk Installation: Type BD: Ensure that axial and radial alignment between clutch and engine are correct with satisfactory location of input shaft in pilot bearing. Before assembly check that the pilot bearing turns freely when fitted into flywheel recess. Type BDS: take care to mount the unit with shaft axis horizontal and on a common base with the prime mover. Good alignment between drive shaft and input shaft should be achieved in order to avoid axial and radial loads on the input shaft. When fitting the coupling to the input shaft, special care should be taken. The coupling should extend beyond the shaft end so that when it is secured with bolt and washer (A) it makes contact with shaft shoulder (B). Coupling bore tolerance of N8 is recommended. Note: Coupling should be fitted to the input shaft by using securing bolt as axial shock loads are not permitted. Operation: A) When disengaged, the clutch unit may be driven for extended periods. B) To engage, reduce engine speed to idle or tickover before engaging. Avoid slipping the clutch to bring the machinery up to operating rpm. After engagement increase engine rpm to operating speed. C) Before disengaging, reduce engine speed to idle to avoid snatch on drive plates. Maintenance: Lightly grease bearings and cross shaft every 300 hours and on BD1100-BD3500 and BDS2200 units grease release bearing every 100 hours. Use high quality density 2 grease such as BP ENERGREASE LSEP2. DO NOT OVER-GREASE. Your jbj clutch is a quality unit with self adjustment capability to compensate for moderate wear. However after considerable usage manual adjustment will be necessary. Ensure that the clutch is adjusted correctly. If the lever requires a little effort to engage or if the clutch begins to slip, adjust immediately as follows: To adjust the clutch: set the lever in the release position. Remove the inspection cover (8) and rotate clutch until the spring loaded pin (49) becomes accessible. Depress the lock pin and turn the adjuster ring (36) clockwise to the next groove. Move the lever to engage clutch, if only slight resistance is felt return lever to release and repeat adjustment procedure. If the clutch is over adjusted the lever will be excessively stiff to engage. If in doubt refer to lever torque figures. Types BD & BDS www.jbj.co.uk/clutchesgearboxes.html #DriveLineHarmony Over-Centre Clutch Units
www.jbj.co.uk/clutchesgearboxes.html #DriveLineHarmony Greasing Types BD & BDS INSPECTION COVER Lever Effort Kgm. Engage Release 7 17 35 44 5 8 18 22 Over-Centre Clutch Units
Over-Centre Clutch Units Types BD & BDS www.jbj.co.uk/clutchesgearboxes.html #DriveLineHarmony
Types BD & BDS Over-Centre Clutch Units Spare Parts: When ordering replacement parts, quote model, serial number and item reference number as shown on exploded diagram. www.jbj.co.uk/clutchesgearboxes.html #DriveLineHarmony
Types BDS Spare Parts: When ordering replacement parts, quote model, serial number and item reference number as shown on exploded diagram. For further details/assistance please contact: jbj Techniques Limited 28 Trowers Way, Holmethorpe Industrial Estate, Redhill, Surrey RH1 2LW tel: 01737 767493 • fax: 01737 772041 • email: info@jbj.co.uk • website: www.jbj.co.uk Over-Centre Clutch Units
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Anti-Static/Flameproof Couplings Torque Limiting Couplings Torsional Couplings Screw Pumps Low Noise Helical Gear Pumps Gear Pumps/Gear Motors Pressure Intensifiers Flow Dividers Mini Power Packs Electromagnetic Clutches & Brakes BDS Clutches Coolers/Heat Exchangers Bellhousings Spider/Jaw Couplings Gear Couplings Fillers/Breathers/Filters Flame Proof Option Level Indicators Tanks/Reservoirs/Accessories www.jbj.co.uk/ .html productlist
Thermostatic Valves & Controls Torsionally Highly Flexible Couplings Torsionally Flexible Couplings Torsionally Rigid Couplings Planetary Gearboxes Multiple PTOs/Splitter Gearboxes Hydraulic Power Take-off Units Vane Pumps LSHT Motors/Hydraulic Geared Motors Pneumatic Starters & Motors Mechanical Power Take-off Units Oil Bath Clutches BD Clutches & Gearboxes Engine Adaptor Kits Dampers Bearing Supported Stub Shafts Quick Maintenance ‘QM’ Flange Flanges www.jbj.co.uk/ .html productlist
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
registered in England No: 1185469 jbj Techniques Limited is ISO certificated, committed to international coordination & unification of industrial standards. A range of products ATEX certificated to directive 94/9/EC requirements set by James Harris, jbj Techniques Limited jbj Techniques Limited 28 Trowers Way Holmethorpe Industrial Estate Redhill Surrey RH1 2LW. UNITED KINGDOM 01737 767493 info@jbj.co.uk www.jbj.co.uk quality products for mechanical & fluid power
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