12 22 ELECTROMAGNETIC CLUTCHES & BRAKES
www.jbj.co.uk/ .html electromagnetic-clutches USP: Analyse industry applications & provide proficient solutions to the mechanical power transmission and hydraulics industries. PRODUCT SPECIFICATION: team of design engineers to assist in design process, simple or complex, standard or bespoke. PROMPT PRODUCT SUPPLY: large stocks for next day delivery on many items. : full machining services for bespoke designs and prompt turnaround. MACHINE SHOP quality products for mechanical & fluid power: www.jbj.co.uk High quality mechanical and fluid power products are always available straight from our comprehensively stocked warehouse, but, we are more than that! If you need more, be it the smallest drive component through to complex drive line component packages, then speak to our experienced sales team who will provide a solution based upon your application requirements. » fluid level indicators » fluid reservoirs / tanks RESERVOIRS / LEVEL INDICATORS » hygroscopic breathers » fluid power accessories » hydraulic generator (NEW) MISCELLANEOUS » bellhousings » dampers » 2 stage gear pumps » pneumatic starters » magnetic couplings (ATEX) » disc couplings (ATEX) PUMPS / MOTORS » clutches & gearboxes » grid couplings » pneumatic motors (ATEX) » hydraulic adaptors » gear couplings » internal gear pumps BELLHOUSINGS / COUPLINGS CLUTCHES / GEARBOXES » all steel gear couplings (ATEX) » torsional couplings » torque limiting couplings » helical gear pumps Elika® » S-flex couplings » splitter gearboxes - - - - - - - - - - - - - - » foot brackets » tyre couplings (ATEX) » load sensing gear pumps » vane pumps » screw pumps » planetary gearboxes » hydraulic motors (ATEX) » power take-off units » wet mount bellhousing (NEW) » axial piston motors (ATEX) » spider couplings » 'JXL' couplings (ATEX) » gear pumps » gear motors FLANGES / SEALS » port flanges / pipe flanges » 'QM' replaceable seal FLOW / HYDRAULIC PRESSURE » flow dividers » mini power packs » pressure intensifiers COOLING / HEAT EXCHANGE » air - oil coolers » off-line cooling » water - oil coolers » plate heat exchangers » bellhousing coolers
Page Introduction.......................................................................... 1 TypicalApplications ................................................................... 2 Mobile Clutch Weights & Measurements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 - 6 Installation & Maintenance. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 - 9 ComponentParts..................................................................... 10 Soft Start Controller . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 - 13 General Purpose Clutches. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 - 16 MIC Electromagnetic Clutch (Torque range: 0.226 to 0.79 Nm / 2 to 7 in-lbs). . . . . . . . . . . . . . . . . . . . . . . 17 AMC Electromagnetic Clutch (Torque range 2.7 to 7.9 Nm / 2 to 70 in-lbs). . . . . . . . . . . . . . . . . . . . . . . . . 18 AMB Electromagnetic Brake (Torque range 2.7 to 7.9 Nm / 2 to 70 in-lbs).. . . . . . . . . . . . . . . . . . . . . . . . . 19 VC Electromagnetic Clutch (Torque range 5.4 to 59.7 Nm / 4 to 44 ft-lbs).. . . . . . . . . . . . . . . . . . . . . . . . . 20 VB Electromagnetic Brake (Torque range 6.8 to 59.7 Nm / 5 to 44 ft-lbs). . . . . . . . . . . . . . . . . . . . . . . . . . 21 TMB Electromagnetic Brake (Torque range 5.4 to 199.3 Nm / 4 to 147 ft-lbs). . . . . . . . . . . . . . . . . . . . . . . 22 MSB Single Disc Electromagnetic Brake (Torque range 12.2 to 1000.6 Nm / 9 to 738 ft-lbs). . . . . . . . . . . 23 TMC Electromagnetic Clutch (Torque range 5.4 to 199.3 Nm / 4 to 147 ft-lbs).. . . . . . . . . . . . . . . . . . . . . . 24 MSC-T Single Disc Electromagnetic Clutch (Torque range 12.2 to 1000.6 Nm / 9 to 738 ft-lbs). . . . . . . . . 25 MMC Electromagnetic Clutch (Torque range 50.2 to 1999.8 Nm / 37 to 1475 ft-lbs). . . . . . . . . . . . . . . . . . 26 AMU-C Electromagnetic Clutch/Brake (Torque range 2.7 to 94.9 Nm / 2 to 70 ft-lbs). . . . . . . . . . . . . . . . . 27 VSAU Electromagnetic Clutch/Brake (Torque range 12 to 50.2 Nm / 9 to 37 ft-lbs).. . . . . . . . . . . . . . . . . . 28 MSU - Single Disc Electromagnetic Clutch/Brake (Torque range 12 to 1000 Nm / 9 to 738 ft-lbs).. . . . . . . 29 MP Electromagnetic Clutch/Brake (Torque range 12.2 to 50 Nm / 9 to 37 ft-lbs). . . . . . . . . . . . . . . . . . . . . 30 MZ Electromagnetic Tooth Clutch (Torque range 24.4 to 3999.7 Nm / 18 to 2950 ft-lbs). . . . . . . . . . . . . . . 31 MZS Electromagnetic Single-Position Tooth Clutch (Torque range 24.4 to 249.5 Nm / 18 to 184 ft-lbs). . . 32 MCNB Electromagnetic Spring-Applied Brake (0.2 to 1 Nm / 1.8 to 8.9 in-lbs). . . . . . . . . . . . . . . . . . . . . . 33 - 34 FNB Electromagnetic Spring Applied Brake (Torque range 1 to 8 Nm / 9 to 71 in-lbs).. . . . . . . . . . . . . . . . 35 RNB-Z Electromagnetic Zero-Backlash Spring-Applied Brake (Torque range 2 to 16.3 Nm / 1.5 to 12 ft-lbs). 36 SNB Electromagnetic Spring-Applied Brake (Torque range 1 to 100.3 Nm / 0.7 to 74 ft-lbs).. . . . . . . . . . . 37 RNB Electromagnetic Spring-Applied Brake (Torque range 2 to 200.7 Nm / 1.5 to 148 ft-lbs).. . . . . . . . . . 38 MNB Electromagnetic Spring-Applied Brake (Torque range 2 to 799.9 Nm / 1.5 to 590 ft-lbs).. . . . . . . . . . 39 PMB Electromagnetic/Permanent-Magnet Brake (Torque range 0.4 to 30 Nm / 3.5 to 265 in-lbs).. . . . . . . 40 Continued overleaf . . . . . Electromagnetic Clutches Contents INDUSTRIAL CORP OGURA The details contained within this catalogue are reproduced in accordance with the latest information at publication of this catalogue. Errors and Omissions Excepted Last update: 06/12/2022
The details contained within this catalogue are reproduced in accordance with the latest information at going to press ................ E & OE Electromagnetic Clutches Contents PHT Permanent-Magnet Hysteresis Clutch/Brake (Torque range 0 to 7 Nm / 0 to 62 in-lbs). . . . . . . . . . . . 41 HB Electromagnetic Hysteresis Brake (Torque range 0.05 to 1 Nm / 0.4 to 8.9 in-lbs).. . . . . . . . . . . . . . . . 42 MWC Electromagnetic Multiple-Disk Clutch (Torque range 24.4 to 12000 Nm / 18 to 8851 ft-lbs).. . . . . . . 46 OPB-N Electromagnetic Mag-Particle Brake (Torque range 0.5 to 8 Nm / 4.4 to 71 in-lbs). . . . . . . . . . . . . 50 MDB-N Electromagnetic Multiple-Disk Brake (Torque range 17.6 to 1119.9 Nm /13 to 826 ft-lbs). . . . . . . . 45 OPC-N Electromagnetic Mag-Particle Clutch (Torque range 0.5 to 8 Nm / 4.4 to 71 in-lbs).. . . . . . . . . . . . 49 Page jbj Techniques product summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62 - 63 Mechanical Industrial Clutches (Torque range 24.9 to 4700 Nm / 18.4 to 3467 ft-lbs). . . . . . . . . . . . . . . . . 53 MDC Electromagnetic Multiple-Disk Clutch (Torque range 17.6 to 8400 Nm / 13 to 6196 ft-lbs). . . . . . . . . 44 PB Electromagnetic Mag-Particle Clutch (Torque range 11.9 to 195 Nm / 8.8 to 144 ft-lbs).. . . . . . . . . . . . 52 HO Wet Type Multiple Disc (Torque range 3000.4 to 14995.4 Nm / 2213 to 11060 ft-lbs). . . . . . . . . . . . . . 55 MWB Electromagnetic Multiple-Disk Brake (Torque range 24.4 to 3199.7 Nm / 18 to 2360 ft-lbs).. . . . . . . 47 PC Electromagnetic Mag-Particle Clutch (Torque range 11.9 to 195 Nm / 8.8 to 144 ft-lbs). . . . . . . . . . . . 51 OPL Permanent-Magnet Mag-Particle Slip Clutch (Torque range 0.03 to 0.4 Nm / 0.27 to 3.5 in-lbs). . . . 48 HC Electromagnetic Hysteresis Clutch (Torque range 0.05 to 1 Nm / 0.4 to 8.9 in-lbs). . . . . . . . . . . . . . . . 43 ACSB Pneumatic Clutch/Brakes (Torque range 699.6 to 10599.8 Nm / 516 to 7,818 ft-lbs). . . . . . . . . . . . 54 Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56 - 60
www.jbj.co.uk/electromagnetic-clutches.html Electromagnetic Clutches Introduction 1 #DriveLineHarmony INDUSTRIAL CORP OGURA The field is mounted to a stationary member such as a support bracket of a pump. The rotor is driven by the belt from the engine and rotates constantly. When the clutch is energized, the armature pulls against the rotor and drives the shaft of the pump. Armature assembly This includes the armature disc, springs and hub and is normally the output. Rotor assembly This includes the pulley and the bearing and is normally the input of the clutch. Mobile clutches aremade up of threemajor sub-assemblies.: Field assembly This is the coil and backing flange which provides themagnetic flux that makes the clutch engage. Ogura mobile electric clutches provide reliable performance in many long life applications where electromagnetic clutches are key. They were primarily designed as air conditioning compressor clutches, but now are also used as clutches for hydraulic pumps (clutch pump), water pump clutches, electromagnetic fan clutches and clutches for vacuum pumps. The units that are used to clutch hydraulic pumps and to clutch water pumps are typically used for tow trucks, marine winch drives and boom trucks in the utilities industry. Water pumps are typically driven by our clutches from a gas engine on such equipment as pressure washers, street sweepers and carpet cleaning trucks. Additionally, pump clutches are often used in vacuum pump and compressor applications such as refrigeration and waste removal trucks as well as mobile service trucks, or engine compartment applications where the clutch engages a compressor mounted in the engine compartment of a service truck. Ogura mobile clutches range in size from 78.64 to 2033.73 Nm (58 to 1500 ft.lb.) and feature numerous pulley configurations including v-belt and poly-v as well as universal hub mounts. The user can choose from a straight, splined or tapered bore to match the corresponding pump shaft. Many of our pump and compressor clutch configurations are interchangeable with both Pitts and Warner Electric. Engagement of the armature to the rotor is caused by themagnetic attraction between these two elements. The section below shows how themagnetic field is created when direct current is applied to the field. The magnetic flux is transferred from the field into the rotor and then into the armature. The slots in the rotor and the armature are called banana slots. These slots allow the flux to contact the rotor and the armature in more than just two places. [Anormal magnet has only two points (north and south) of attraction.] By making multiple points of flux connection, the torque of a clutch can be increased. The diagram above shows a standard mobile clutch. It has two flux paths. This is called a double flux, or a four-pole design. To disengage the clutch, the voltage going to the coil is simply turned off. Once the voltage is released, the springs between the armature and the hub pull the armature away from the rotor, creating an air gap so no contact is made. Rotor Assembly Field Assembly Armature Pump Shaft Magnetic Flux Path
www.jbj.co.uk/electromagnetic-clutches.html Electromagnetic Clutches Typical Applications 2 #DriveLineHarmony INDUSTRIAL CORP OGURA Advantages of use: »Simple installation. »Operator convenience/safety. Mobile Clutches: 78.64 to 237.27 Nm (58 to 175 lb-ft). These are flangemounted, normally a two piece construction clutch typically mounted directly on to the pumps. »Cold weather starting. Solid forged rotor. »Extended pump life. »Reduced horsepower consumption from the engine. »Lower operator cost. Although 12 volt is themost common, 24 volts can also bemade available. Depending upon the quantity, other specialty voltages can bemade High temperature, longer life grease. Different coil voltages available. Forgedmachined pulley All models in this section use a heavy duty machined pulley.Astronger pulley resists damage due to abusive environments. Where possible, all parts in the clutch are e-coated to givemaximum corrosion protection. To help prevent failure fromboth vibration and outside contaminants, all coils are sealed in the coil shell with a high temperature epoxy coating. High temperature epoxy coil. Aone piece solid forged rotor means no chance of internal parts separation. Our rotors also have an even wall thickness around the coil which gives optimum flux distribution, maximizing torque. All models include our special long life grease which has shown a significant improvement in life over other standard high temperature greases. E-coating. Auto air conditioning compressors Hydraulic pumps Air compressor and vacuum pumps Water pumps
Torque Way & Watt Diameter Width Width Angle Height to Gauge to Groove Number Size (kgs) 520887 101.69 20 mm 6 X 2.8 mm 12/44 177.8 52.07 12.70 36 14.22 22.05 - 4.082 521491 101.69 24 mm 8 X 4.3 mm 12/47 177.8 51.56 12.70 36 13.72 22.05 - 4.082 521792 78.64 5/8" ³⁄ X ³⁄ 12/45 127.0 65.02 12.70 36 13.21 4.88 15.75 2.723 520889 101.69 20 mm 6 X 2.8 mm 12/44 177.8 52.07 12.70 36 14.22 22.05 15.75 4.082 503272 78.64 *Taper .16 X .11 (w) 12/46 127.0 61.98 12.70 36 13.21 4.88 15.75 2.723 501999 101.69 *Taper .16 X .11 (w) 12/43.3 177.8 45.47 12.70 36 13.72 4.60 15.75 4.990 502286 101.69 5/8" ³⁄ X ³⁄ 12/47 152.4 59.69 12.70 36 13.21 7.90 15.75 3.175 501075 101.69 *Taper .16 X .11 (w) 24/45.6 177.8 52.58 12.70 36 13.72 4.60 15.75 3.629 517166 101.69 3/4" ³⁄ X ³⁄ 12/40 152.4 59.69 12.70 36 13.21 7.90 15.75 3.175 520441 101.69 *Taper .16 X .11 (w) 12/44 187.2 45.47 12.70 36 14.22 4.90 15.75 4.990 Mobile Clutch Dimensions (Nm) (inches) (V/W) (mm) (mm) (mm) (degrees) (mm) (mm) (mm) 501076 101.69 *Taper .16 X .11 (w) 24/30 152.4 58.93 12.70 36 13.21 4.75 15.75 3.175 Static Key Voltage Pulley Clutch Groove Groove Groove Groove Groove Part Bore Weight 332334 101.69 *Taper .16 X .11 (w) 12/40 177.8 52.83 12.70 36 14.22 4.60 15.75 3.629 502001 101.69 *Taper .16 X .11 (w) 12/43.3 177.8 45.47 15.49 35 14.22 12.75 - 4.082 512368 101.69 16.5 mm 5 X 2.3 mm 12/44 177.8 45.97 12.70 36 13.72 24.11 - 4.082 511646 101.69 3/4" ³⁄ X ³⁄ 12/47 177.8 52.83 12.70 36 14.22 0.36 15.75 3.629 332639 101.69 *Taper .16 X .11 (w) 12/40 152.4 59.69 12.70 36 13.21 4.75 15.75 3.175 513297 101.69 3/4" ³⁄ X ³⁄ 12/44 177.8 52.83 12.70 36 14.22 22.05 - 3.629 520886 101.69 16.5 mm 5 X 2.3 mm 12/44 177.8 52.07 12.70 36 14.22 22.05 - 4.082 520888 101.69 16.5 mm 5 X 2.3 mm 12/44 177.8 52.07 12.70 36 14.22 22.05 15.75 4.082 522850 101.69 24 mm 8 X 4.3 mm 12/47 177.8 53.09 12.70 36 13.72 17.15 15.75 4.082 522886 101.69 24 mm 8 X 4.3 mm 24/45.6 177.8 53.09 12.70 36 13.97 17.15 15.75 4.082 526531 101.69 *Taper .16 X .11 (w) 12/48 152.4 62.99 K-6 40 3.05 12.80 3.56 4.082 534818 101.69 *Taper .16 x .11 (w) 12/47 134.9 59.69 K-6 40 3.05 12.80 3.56 3.629 511645 122.02 3/4" ³⁄ x ³⁄ 12/47 152.4 59.69 12.70 36 13.21 8.10 15.75 3.175 512010 122.02 *Taper .16 X .11 (w) 12/47 152.4 59.69 12.70 36 13.21 4.75 15.75 3.175 515376 122.02 *Taper .16 X .11 (w) 12/47 138.9 58.67 K-8 40 3.05 11.20 3.56 3.629 522146 101.69 5/8" ³⁄ x ³⁄ 12/43 177.8 45.72 12.70 36 13.72 8.36 15.75 3.629 520226 122.02 *Taper .16 X .11 (w) 12/47 152.4 59.94 K-6 40 3.05 14.78 3.56 4.082 526299 122.02 *Taper .16 X .11 (w) 12/47 150.1 58.93 K-8 40 3.05 14.58 3.56 4.082 512606 122.02 *Taper .16 X .11 (w) 12/47 177.8 52.83 12.70 36 14.22 4.60 15.75 3.629 521680 101.69 *Taper .16 X .11 (w) 12/48 152.4 59.95 K-6 40 3.05 9.80 3.56 4.082 535104 101.69 24 mm 8 X 4.3 mm 24/45.6 177.8 58.42 12.70 36 13.72 22.05 - 4.082 517162 122.02 3/4" ³⁄ x ³⁄ 12/47 177.8 52.83 12.70 36 14.22 8.36 15.75 3.629 509191 135.58 *Taper ³⁄ x ³⁄ 12/60 187.2 58.42 12.70 36 14.22 4.90 15.75 4.990 509190 237.29 *Taper .16 X .11 (w) 12/50 198.6 52.32 11.94 7.0 188.21 6 X 1/4 - 20 UNC - 6.804 *Taper is standard automotive 1:4 ratio. Gauge line diameter is 21.36 mm. Weight is approximate. Non standard sizes available on request. Please contact jbj Techniques Ltd. technical office, telephone: +44 (0)1737 767493 or email: info@jbj.co.uk 523543 237.29 24 mm 8 X 4.3 mm 12/50 198.4 53.09 11.94 7.0 188.21 6 X 1/4 - 20 UNC - 6.804 www.jbj.co.uk/electromagnetic-clutches.html (Metric) Electromagnetic Clutches Mobile Clutch Weights & Measurements 3 #DriveLineHarmony INDUSTRIAL CORP OGURA
www.jbj.co.uk/electromagnetic-clutches.html 4 #DriveLineHarmony INDUSTRIAL CORP OGURA 60.33 ID 3 x 0.190 holes 55.58 80004265* 271.16 taper ⁵⁄ 12/66 180.98 80.5² 46.86 ID 4 x ³⁄ 3.125 2 x ³⁄ 80004332 1355.82 spline - 12/100 315.98 134.87 69.85 ID 127.00 OD 4 x ⁷⁄ 3.750 2 x ¹⁄ 8 x ³⁄ 16UNC x ⁵⁄ 158.75 60.33 ID 127.00 80003931* 271.16 spline - 12/66 180.98 113.50 101.6 ID 4 x ³⁄ 3.125 2 x ³⁄ 4 x ¹⁄ 13UNC 2B 97.54 OD 146.05 60.33 ID 127.00 80002712* 271.16 1 ¹⁄ (x 2) 12/66 180.98 113.50 101.6 ID 4 x ³⁄ 3.125 2 x ³⁄ 4 x ¹⁄ 13UNC 2B Static Key Voltage Overall Overall Output Mounting GrooveWidth Hub I/OLockup Field Field Part Bore 39.88 OD 2 x 0.68 slots 80001708* 271.16 1 ¹⁄ (x 2) 12/66 209.04 94.996 50.04 ID 0.597/36° - 2 x ³⁄ 120.65 145.03 OD 4 x 0.50 slots Torque Way &Watt Diameter Length Hub Side Flange Side /Output Hub Bolt Bolts Mount Bolt Number ID 127.00 OD 80005215** 949.07 1.75 ³⁄ 24/85 294.89 134.87 69.85 ID 4 x ⁷⁄ 3.750 2 x ¹⁄ 8 x ³⁄ 16UNC x ⁵⁄ 158.75 (Nm) (inches) (V/W) (mm) (mm) Pilot (mm) Pilot (mm) Bolt Holes (in) (inches) (inches) (inches) PCD(mm) 80002327* 1355.82 1.75 ³⁄ 12/100 315.98 134.87 69.85 ID 127.00 OD 4 x ⁷⁄ 3.750 2 x ¹⁄ 8 x ³⁄ 16UNC x ⁵⁄ 158.75 97.54 OD 146.05 8000 Series Mobile Clutch Dimensions (metric) 97.54 OD 6 x 0.250 holes 61.90 60.33 ID 80002657* 271.16 1 ¹⁄ (x 2) 12/66 180.98 113.50 82.55 ID 4 x ³⁄ 3.125 2 x ³⁄ 6 x ⁷⁄ slots 120.65 80002309* 542.33 1.75 ³⁄ 12/68 261.11 118.36 69.85 ID 127.00 OD 4 x ⁷⁄ 3.750 2 x ³⁄ 8 x ³⁄ 16UNC x ⁵⁄ 158.75 80004243* 542.33 spline - 12/68 261.11 118.36 69.85 ID 127.00 OD 4 x ⁷⁄ 3.750 2 x ³⁄ 8 x ³⁄ 16UNC x ⁵⁄ 158.75 80005158 1355.82 spline - 12/100 315.98 134.87 69.85 ID 127.00 OD 4 x ⁷⁄ 3.750 2 x ¹⁄ 8 x ³⁄ 16UNC x ⁵⁄ 158.75 97.54 OD 80004331* 542.33 1.25 ⁵⁄ 12/68 261.11 118.36 69.85 ID 127.00 OD 4 x ⁷⁄ 3.750 2 x ³⁄ 8 x ³⁄ 16UNC x ⁵⁄ 158.75 219.96 OD 80004333 1355.82 1.25 ⁵⁄ 12/100 315.98 134.87 69.85 ID 127.00 OD 4 x ⁷⁄ 3.750 2 x ¹⁄ 8 x ³⁄ 16UNC x ⁵⁄ 158.75 80002328 1355.82 1.75 ³⁄ 24/100 315.98 134.87 69.85 ID 127.00 OD 4 x ⁷⁄ 3.750 2 x ¹⁄ 8 x ³⁄ 16UNC x ⁵⁄ 158.75 80005180* 1355.82 spline - 12/100 315.98 141.22 81.92 OD 127.00 OD 8 x M10 3.996 2 x ¹⁄ 8 x ⁷⁄ 16-2B x 1 180.98 95.25 ID 80004213* 2033.73 spline - 12/170 381.00 131.76 152.40 OD 8 x 1/2 4.750 2 x 3/8 8 x ⁷⁄ 16-2B x 1 180.98 152.40 OD *24V version is also available **Only 24V version is available. Burnishing. To achieve full torque, new clutches need to have an initial wear-in period. Depending upon the inertia and speed, the wear-in period can be anywhere from 30 to 100 engagements. Burnishing should be undertaken at a reduced rpmand at a reduced clutch load. For high inertia loads do not cycle the clutchmore than 4 times per minute. Electromagnetic Clutches Mobile Clutch Weights & Measurements (Metric)
521792 58 5/8 3/16 X 3/32 12/45 5.00 2.56 0.50 36 0.52 0.187 0.62 6 Mobile Clutch Dimensions (inch/pound, Imperial) Part Static Bore Key Voltage Pulley Clutch Groove Groove Groove Groove Groove Weight Number Torque Size Way & Watt Diameter Width Width Angle Height to Gauge to Groove (lbs) (lbs. ft.) (inches) (inches) (V/W) (inches) (inches) (inches) (degrees) (inches) (inches) (inches) 503272 58 *Taper 16 X 11(w) 12/46 5.00 2.44 0.50 36 0.52 0.192 0.62 6 501076 75 *Taper .16 X .11 (w) 24/30 6.00 2.32 0.50 36 0.52 0.187 0.62 7 502001 75 *Taper .16 X .11 (w) 12/43.3 7.00 1.79 0.61 35 0.56 0.502 - 9 513297 75 3/4 316 X 3/32 12/44 7.00 2.08 0.50 36 0.56 0.868 - 8 517166 75 3/4 3/16 X 3/32 12/40 6.00 2.35 0.50 36 0.52 0.311 0.62 7 520888 75 16.5 mm 5 X 2.3 mm 12/44 7.00 2.05 0.50 36 0.56 0.868 0.62 9 502286 75 5/8 3/16 X 3/32 12/47 6.00 2.35 0.50 36 0.52 0.311 0.62 7 511646 75 3/4 3/16 X 3/32 12/47 7.00 2.08 0.50 36 0.56 0.014 0.62 8 521680 75 *Taper .16 X .11 (w) 12/48 6.00 2.36 K-6 40 0.12 0.386 0.14 9 522850 75 24 mm 8 X 4.3 mm 12/47 7.00 2.09 0.50 36 0.54 0.675 0.62 9 522886 75 24 mm 8 X 4.3 mm 24/45.6 7.00 2.09 0.50 36 0.55 0.675 0.62 9 501075 75 *Taper .16 X .11 (w) 24/45.6 7.00 2.07 0.50 36 0.54 0.181 0.62 8 520441 75 *Taper .16 X .11 (w) 12/44 7.37 1.79 0.50 36 0.56 0.193 0.62 11 534818 75 *Taper .16 x .11 (w) 12/47 5.31 2.35 K-6 40 0.12 0.504 0.14 8 535104 75 24 mm 8 X 4.3 mm 24/45.6 7.00 2.03 0.50 36 0.54 0.868 - 9 520887 75 20 mm 6 X 2.8 mm 12/44 7.00 2.05 0.50 36 0.56 0.868 - 9 511645 90 3/4 3/16 X 3/32 12/47 6.00 2.35 0.50 36 0.52 0.319 0.62 7 512010 90 *Taper .16 X .11 (w) 12/47 6.00 2.35 0.50 36 0.52 0.187 0.62 7 332334 75 *Taper .16 X .11 (w) 12/40 7.00 2.08 0.50 36 0.56 0.181 0.62 8 501999 75 *Taper .16 X .11 (w) 12/43.3 7.00 1.79 0.50 36 0.54 0.181 0.62 11 512368 75 16.5 mm 5 X 2.3 mm 12/44 7.00 1.81 0.50 36 0.54 0.949 - 9 520886 75 16.5 mm 5 X 2.3 mm 12/44 7.00 2.05 0.50 36 0.56 0.868 - 9 520889 75 20 mm 6 X 2.8 mm 12/44 7.00 2.05 0.50 36 0.56 0.868 0.62 9 521491 75 24 mm 8 X 4.3 mm 12/47 7.00 2.03 0.50 36 0.54 0.868 - 9 526531 75 *Taper .16 X .11 (w) 12/48 6.00 2.48 K-6 40 0.12 0.504 0.14 9 522146 75 5/8 3/16 X 3/32 12/43 7.00 1.80 0.50 36 0.54 0.329 0.62 8 332639 75 *Taper .16 X .11 (w) 12/40 6.00 2.35 0.50 36 0.52 0.187 0.62 7 515376 90 *Taper .16 X .11 (w) 12/47 5.47 2.31 K-8 40 0.12 0.441 0.14 8 *Taper is standard automotive 1:4 ratio. Gauge line diameter is 0.841. Weight is approximate. Non standard sizes available on request. Please contact jbj Techniques Ltd. technical office, telephone: +44 (0)1737 767493 or email: info@jbj.co.uk 512606 95 *Taper .16 X .11 (w) 12/47 7.00 2.08 0.50 36 0.56 0.181 0.62 8 523543 175 24 mm 8 X 4.3 mm 12/50 7.81 2.09 0.47 7.0 7.41 6 X 1/4 - 20 UNC - 15 517162 95 3/4 3/16 X 3/32 12/47 7.00 2.08 0.50 36 0.56 0.329 0.62 8 520226 90 *Taper .16 X .11 (w) 12/47 6.00 2.36 K-6 40 0.12 0.582 0.14 9 509191 100 *Taper 3/16 x 3/32 12/60 7.37 2.30 0.50 36 0.56 0.193 0.62 11 526299 90 *Taper .16 X .11 (w) 12/47 5.91 2.32 K-8 40 0.12 0.574 0.14 9 509190 175 *Taper .16 X .11 (w) 12/50 7.82 2.06 0.47 7.0 7.41 6 X 1/4 - 20 UNC - 15 www.jbj.co.uk/electromagnetic-clutches.html 5 #DriveLineHarmony INDUSTRIAL CORP OGURA Electromagnetic Clutches Mobile Clutch Weights & Measurements (Imperial)
www.jbj.co.uk/electromagnetic-clutches.html 6 #DriveLineHarmony INDUSTRIAL CORP OGURA 80004243* 400 spline - 12/68 10.28 4.66 2.750 ID 5.000 OD 4 x ⁷⁄ 3.750 2 x ³⁄ 8 x ³⁄ 16UNC x ⁵⁄ 6.25 3.840 OD 5.75 3.840 OD 6 x 0.250 holes 2.437 2.375 ID 3 x 0.190 holes 2.188 80004265* 200 taper ⁵⁄ 12/66 7.125 3.17 1.845 ID 4 x ³⁄ 3.125 2 x ³⁄ 80002309* 400 1.75 ³⁄ 12/68 10.28 4.66 2.750 ID 5.000 OD 4 x ⁷⁄ 3.750 2 x ³⁄ 8 x ³⁄ 16UNC x ⁵⁄ 6.25 5.000 OD 80005215** 700 1.75 ³⁄ 24/85 11.61 5.31 2.750 ID 4 x ⁷⁄ 3.750 2 x ¹⁄ 8 x ³⁄ 16UNC x ⁵⁄ 6.25 8.660 OD 80002327* 1,000 1.75 ³⁄ 12/100 12.44 5.31 2.750 ID 5.000 OD 4 x ⁷⁄ 3.750 2 x ¹⁄ 8 x ³⁄ 16UNC x ⁵⁄ 6.25 80004333 1,000 1.25 ⁵⁄ 12/100 12.44 5.31 2.750 ID 5.000 OD 4 x ⁷⁄ 3.750 2 x ¹⁄ 8 x ³⁄ 16UNC x ⁵⁄ 6.25 80004331* 400 1.25 ⁵⁄ 12/68 10.28 4.66 2.750 ID 5.000 OD 4 x ⁷⁄ 3.750 2 x ³⁄ 8 x ³⁄ 16UNC x ⁵⁄ 6.25 80005158 1,000 spline - 12/100 12.44 5.31 2.750 ID 5.000 OD 4 x ⁷⁄ 3.750 2 x ¹⁄ 8 x ³⁄ 16UNC x ⁵⁄ 6.25 80004332 1,000 spline - 12/100 12.44 5.31 2.750 ID 5.000 OD 4 x ⁷⁄ 3.750 2 x ¹⁄ 8 x ³⁄ 16UNC x ⁵⁄ 6.25 80002328 1,000 1.75 ³⁄ 24/100 12.44 5.31 2.750 ID 5.000 OD 4 x ⁷⁄ 3.750 2 x ¹⁄ 8 x ³⁄ 16UNC x ⁵⁄ 6.25 2.375 ID 80002657* 200 1 ¹⁄ (x 2) 12/66 7.125 4¹⁵⁄ 3.250 ID 4 x ³⁄ 3.125 2 x ³⁄ 6 x ⁷⁄ slots 4.75 3.840 OD 3.840 OD 5.75 2.375 ID 5.00 80003931* 200 spline - 12/66 7.125 4¹⁵⁄ 4.000 ID 4 x ³⁄ 3.125 2 x ³⁄ 4 x ¹⁄ 13UNC 2B 2.375 ID 5.00 80002712* 200 1 ¹⁄ (x 2) 12/66 7.125 4¹⁵⁄ 4.000 ID 4 x ³⁄ 3.125 2 x ³⁄ 4 x ¹⁄ 13UNC 2B **Only 24V version is available. 3.750 ID 80004213* 1,500 spline - 12/170 15.00 5³⁄ 6.000 OD 8 x 1/2 4.750 2 x 3/8 8 x ⁷⁄ 14-2B x 1 7.125 80005180* 1,000 spline - 12/100 12.44 5.56 3.225 OD 5.000OD 8 x M10 3.996 2 x ¹⁄ 8 x ⁷⁄ 14-2B x 1 7.125 6.000 OD *24V version is also available Burnishing. To achieve full torque, new clutches need to have an initial wear-in period. Depending upon the inertia and speed, the wear-in period can be anywhere from 30 to 100 engagements. Burnishing should be undertaken at a reduced rpmand at a reduced clutch load. For high inertia loads do not cycle the clutchmore than 4 times per minute. 8000 Series Mobile Clutch Dimensions (inch/pound, Imperial) Number Torque ID Way &Watt Diameter Length Hub Side Flange Side /Output Hub Bolt Bolts Mount Bolt (lbs. ft.) (inches) (inches) (V/W) (inches) (inches) Pilot (in) Pilot (in) Bolt Holes (in) (inches) (inches) (inches) PCD (in) 1.570 OD 2 x 0.68 slots 80001708* 200 1 ¹⁄ (x 2) 12/66 8.230 3.740 1970 ID 0.597/36° - 2 x ³⁄ 4.75 5.710 OD 4 x 0.50 slots Part Static Bore Key Voltage Overall Overall Output Mounting GrooveWidth Hub I/OLockup Field Field Electromagnetic Clutches Mobile Clutch Weights & Measurements (Imperial)
www.jbj.co.uk/electromagnetic-clutches.html 7 #DriveLineHarmony INDUSTRIAL CORP OGURA Electromagnetic Clutches Installation and Maintenance a) Straight-bore type: First, establish the required clearance between the end of the armature hub and the face of the field mounting flange. Some models have these two aligned, in which case no clearance is required. Check the part drawing for the appropriate specification. A shaft step or a spacer will be required to set this proper clearance. Then slide the rotor/armature assembly onto the pump shaft. 1. This installation assumes the most common form of mounting, mounting to a pump bracket or direct mounting to a pump face. The pump can be hydraulic, water, a vacuum, or a compressor. These clutches consist of twomajor subassemblies: the field and the rotor/armature assembly. 3. Install the customer-supplied key into the pump shaft key way. Mobile Clutches [78 to 237 Nm (58 to 175 lb-ft ) torque] Installation Procedure 4. Mount the rotor/armature assembly onto the shaft. 2. Attach the field to the customer-supplied mounting bracket or pump face. Use the four ¼” cap screws supplied with the clutch. Tighten each screw to 10.85 Nm (8ft-lbs), taking care not to strip the heads. The flange should be perpendicular to the pump shaft within 0.003” TIR at a 152.4mm (6”) diameter. b) Taper-bore or set-screw type: Slide the rotor/armature assembly onto the pump shaft, taking care to properly align both the shaft and hub key ways. 8. Engage and disengage the clutch several times while manually rotating the pulley to ensure it is functioning properly. If full torque is required immediately, the clutch should be burnished. This involves cycling the clutch at a reduced speed not more than 4 times per minute so the surfaces can mate together. In most applications, 20~50 cycles are required for burnishing. a) Centre-bolt type: Install and securely tighten the centre bolt and washer supplied withmost models [recommended torque: 27.12 to 40.67 Nm (20~30ft-lbs)]. 7. Connect the lead wire(s) to the electric circuit. Check the lead wire polarity if the clutch coil has a diode (only possible on two-wire fields). All single-wire fields are grounded at the factory. If the field support is not properly grounded, it is a good practice to attach a wire from the ground terminal on the field to the equipment to provide a sure ground. Possible interference with proper grounding is a painted surface in the connection. 5. Secure the rotor/armature assembly. b) Set-screw type: The set screws can be accessed through openings in the field mounting flange. If there is no shaft step or spacer to position the hub, slide the rotor/armature assembly onto the shaft until it contacts the field. Then back off the assembly approximately 2.54mm (0.1”) and tighten the set screws. For problems during installation or operation, please refer to the troubleshooting section on the website. If you still have questions, please contact us directly for assistance. Contamination. Care should be taken so that contaminants such as oil, grease, etc. do not come in contact with the working faces of the unit. In some cases it may be necessary to provide a cover or baffle to prevent this. Oil and grease on the friction surfaces should be removed by wiping with a small amount of environmentally friendly grease solvent. However, depending on the permeability of the grease or oil, it may be impossible to remove completely, so if the unit shows signs of slippage it needs to be replaced. 6. After installing the assembly, turn the pulley by hand to verify that there is no contact between the pulley and the field. If contact is noticed, reinstall the rotor/armature assembly or refer to the ‘Noisy Clutch section’ of the ‘Troubleshooting guide’ online. Troubleshooting
www.jbj.co.uk/electromagnetic-clutches.html 8 #DriveLineHarmony INDUSTRIAL CORP OGURA Electromagnetic Clutches MMC Series Reduced power consumption Simple installation Extended pump life Cold weather starting | | | MMC Clutch Series for Marine & Hydraulic Pump Applications MMC series electromagnetic clutches are designed for use with hydraulic pumps, many of which are used in marine winch drives. Typically flange or plate mounted, they engage and disengage the pump. »Torque ratings from 271 to 2033 Nm (200 to 1500 lb-ft) . »Direct drive or pulley drive. » 12 & 24 VDC available. » "TC" and "B" type pump mounts. »Straight or splined bore. »High temp, long life grease. »Bidirectional operation. »One piece design. »Plated for corrosion protection. »Solid forged rotor & pulley or hub. »High temperature epoxy coil. Photograph courtesy of Kohler Co. 8000 Series (MMC) Clutch 271 to 2033 Nm (200 to 1500 lb-ft) . Proper assembly, installation, and maintenance will assure optimal application performance and extended life. Please read the instructions on the following pages carefully prior to assembly and operation. If your clutch is supplied as part of preassembled equipment, please refer to the manufactures recommendations for specific maintenance and service information. General Installation Instruction and Service Guideline.
www.jbj.co.uk/electromagnetic-clutches.html 9 #DriveLineHarmony INDUSTRIAL CORP OGURA Electromagnetic Clutches MMC Series Installation & Maintenance 5. Loosely install mount bracket bolts, nuts, lock washers, Re-check alignment, and tighten all bolts. 6. Mount pump to foot bracket on opposite side from clutch. (NOTE: lubrication and cleanliness of the pump shaft and clutch bore is important. Thoroughly clean these areas if any contamination.) Apply a thin coating of molybdenum disulfide grease on the shaft and in the bore of the clutch. Wipe away any excess grease and make sure no grease gets on armature or rotor assembly. Do not use anti-seize compounds as this will wear down clutch spline. Use mounting bolts long enough to engage at least three-fourths of the threads in the mounting bracket. Always use lock washers. 3. Loosely position the clutch/bracket assembly on themounting platform. A. Installation. 2. Mount the clutch to the bracket with the bolts provided from the OEM or distributor that sold you the bracket. For some MMC-28 series 271 Nm (200 lb-ft) clutches the bolts go through the u-shaped slots on the clutch, and the bracket supporting the clutch is tapped. Other 28 series have a 4-bolt pattern where the back of the clutch field is tapped with a half inch space 13 UNC-2B thread. For MMC-60 & 140 series 542 & 1355 Nm (400 & 1000 lb-ft) clutches the support bracket has a through hole and the back of the clutch assembly has 8 holes that require a 3/8"-16 UNC by 5/8" deep. The MMC-210 series 2033 Nm (1500 lb-ft) clutches have 8 holes, 7/16" 14-2B thread 1 inch deep. The bolt should be long enough to go through the support bracket and go approximately half an inch into the clutch. 4. If necessary, drill required holes in platform to correspond to the foot mount bracket on the clutch. 1. Amounting bracket is required to support the clutch. This is normally supplied to the original manufacturer or through a mobile hydraulics distributor. If your clutch did not come with a mounting bracket, this must be purchased and/or fabricated first for proper installation. All bolts used for the installation should be torqued based upon the grade bolt you are using. 7. For universal joint input, connect universal joint companion flange to the four holes in the clutch face (or other direct inline coupling. Make sure driveline yoke ears are in phase. If not, remove u-joint, separate joint at the spline and rotate 90 degrees. Shaft misalignment must be less than 3º angularly with a shaft concentricity run out of nomore than .003 thousandths of an inch. 10. If full torque is required of the clutch should be burnished. Burnishing involves running the clutch at around 1,000 to 1,200rpm and cycling the clutch four times per minute at a reduced load. This should be done for 30-50 cycles. 1. CAUTION: At the moment of engagement, the clutch must accelerate all related inertial load of the clutch components and other components being put into rotary motion. The larger the clutch and related components the higher the inertia load. Higher R.P.M. engagement of the clutch creates and excessive shock load and may cause breakage of the springs and/or clutch slippage and ultimate clutch failure. Please refer to these recommendations regarding maximum clutch engagement R.P.M. B. Additional Information. MMC28 271.164 (200) 2,500 3,600 MMC60 542.327 (400) 1,800 3,000 MMC100 949.073 (700) 1,500 2,500 MMC140 1355.818 (1000) 1,200 2,500 9. Connect clutch to either 12v or 24v power supply. When voltage/current is connected, the clutch will become engaged and with no current/voltage going to the clutch, the clutch will be disengaged. The clutch coil is not polarized, so it does not matter which wire is connected to positive and/or negative. Use of a surge protector is recommended in the Clutch electrical circuit. One is supplied with each clutch at no charge. It is a good idea to replace the surge protector when replacing the clutch. (Information on the surge protector circuit follows below.) ClutchModel Torque RatingNm (lb-ft) MaximumEngagement RPM MaximumOperatingRPM 8. For belt input, make sure the pulley on the clutch is in alignment with the driving pulley, install belt and tighten based upon belt manufacturer's recommendations. Install drive line between clutch and power source. Install bolts, nuts and lock washers and torque to specified limits. MMC210 2033.727 (1500) 1,200 1,800
www.jbj.co.uk/electromagnetic-clutches.html 10 #DriveLineHarmony INDUSTRIAL CORP OGURA Electromagnetic Clutches Installation & Maintenance 3. Ball bearings: The unit is supplied with oversized dual bearings permanently sealed and lubricated ball bearings. They are designed for years of use in Marine engine bay environments. 4. Air Gaps: TheAir gap between the Rotor and the armature are set at the factory and no adjustment is possible or necessary. That said, a periodic checking of the air gaps is suggested. With each engagement of the clutch there is some wear increasing this air gap. For all 8000 series clutches, the preset factory air gap is from0.015" - 0.028". Repair or user serviceable parts: . 2. Soft Start: Ogura does offer a soft start clutch controller for applications where the rapid engagement of the clutch is undesirable. Please contact your factory representative for information. Higher speed engagements are also possible but depending on the value of the inertial loads, life may be reduced. There are no user or serviceable parts in the 8000 series clutches. We are attaching a parts list and exploded view for your reference only. Please allow only an authorized Ogura warranty service centre to repair or replace worn or damaged clutches. Use of the Surge Protector in the insulation is optional. The surge protector is not for the protection of the clutch, but for the protection of the customer's clutch control circuitry. In general, each time you turn off the clutch, there is an inductive "surge" of power (voltage) back from the clutch coil into the power circuit, switch and relay. This is a brief (tens of milliseconds) voltage that can cause arcing at the switch or relay contacts. Repeated arcing at these contacts can cause the switch or relay to prematurely fail over time. The use of a surge protector can extend the life of the switch or relay. In addition, the switch or surge "noise" can sometimes be heard as a "pop" over radios. The surge protector will eliminate or greatly reduce this noise. Installation. The surge protector needs to be connected to the clutch leads after the switch. The protector can be anywhere along the two clutch leads. Most of the time it's installed at the beginning of the clutch lead and can sometimes be connected right with the customer's terminal and terminal housing. + - Surge protector TNR 23G121K or TNR 20V121K 8000 Series Marine Clutch DC Switch or Relay { { {
www.jbj.co.uk/electromagnetic-clutches.html 11 #DriveLineHarmony INDUSTRIAL CORP OGURA Electromagnetic Clutches Component Parts Warranty Products are warranted against defects in Material and Workmanship for a period of 12 months from date of shipment, when applied in proper applications within specified ratings. This Warranty covers repair or replacement, FOB Somerset New Jersey. There is no further warranty or implied representation as to any product. The company shall not be liable for any consequential damage caused by improper application or installation of its product.
www.jbj.co.uk/electromagnetic-clutches.html 12 #DriveLineHarmony INDUSTRIAL CORP OGURA Electromagnetic Clutches Soft Start Controller The patented Softstart ClutchController offers a simple solution to all of these issues! » Belt Life: Reduce wear and breakage for belts and improve the quality & reputa-tion of the equipment. » Engine Cost Savings: The Softstart Clutch enables OEM's to reduce equipment engine size to save money. » Mechanical Life: The Softstart lessens forces to mechanical parts and improves the life of bolts, decks, brackets and other mechanical parts. » Engine Stall: The Softstart eliminates engine stalling and RPM droop by utilizing closed loop RPM monitoring while engaging the electric clutch. » Mechanical Jolt: Smooth engagement means less jolt to the equipment and customers. Min. Nom. Max. Units. Gas Version ‘On’ Response Time 220 250 280 mS Soft Start Ramp Time 900 1000 1100 mS Min. Nom. Max. Units. Input Range 1000 - 4000 RPM* Load dump ISO 7637-2 test pulse 5A Tachometer Input (for closed loop versions) *Note RPM Input spark pattern 1:1 (1 pulse per revolution, other patterns available). Absolute Maximum Ratings - Model 3112300000 Protection Max. on Resistance - - 0.05 Ohms Operating Voltage 8 - 16 Volts Min. Nom. Max. Units. Impedance - 1.5 - Mohms Over current (13.8 VDC) 47 89 131 Amps Operating Voltage 8 - 16 Volts Absolute Maximum Ratings - Model 3112800000 Min. Nom. Max. Units. Frequency Range 170 - 700 Hz* Soft Start Ramp Time 900 1000 1100 mS Impedance - 100 - Kohms Trigger (VIL) - - 3.3 Volts Diesel & Electric Version Min. Nom. Max. Units. Max. on Resistance - - 0.05 Ohms Alternator Tachometer (for closed loop versions) ‘On’ Response Time 220 250 280 mS Trigger (VIH) 4.7 - - Volts Load dump ISO 7637-2 test pulse 5A Over current (13.8 VDC) 47 89 131 Amps Min. Nom. Max. Units. *Note Other frequency ranges available Protection 76.2 mm (3") 22.2 mm (0.875") 3.2 mm (0.125") 13.1 mm (0.517") 24.3 mm (0.957") 57.2 mm (2.250") 63.5 mm (2.500") 34.2 ± 0.6 mm (1.346 ±0.025") 2.8194 ±0.6 mm (0.111 ±0.025") 6.35 mm (0.250") Ø4.6 mm (0.180")
www.jbj.co.uk/electromagnetic-clutches.html 13 Electromagnetic Clutches Soft Start Controller The patented ‘SoftStart’ controller senses the exact point at which the friction surfaces contact, then rapidly reduces the current to a level that allows the clutch to safely slip, but not release. Using engine RPM feedback, the patented controller adjusts the clutch current in a manner that drives the engine RPM to a fit a desired profile. Design Features: » Closed loop control for consistent performance throughout the entire clutch life. » Precise current measurement for accurate and repeatable pull-in detection. » Closed loop PWM current control unaffected by charging system voltage. » One control ler part number ~ Rat io-metric RPM control automatically scales to RPM at time of engagement. On-the-fly current calibration automatically adapts to different sized clutches. » Default to open loop control if RPM signal is unavailable. » Optional fixed current calibration possible for special applications. » Optional open loop available (no tachometer feedback). » Short circuit protected / Load dump protected. Operating and Environment Specs: » Operating Temperature Range: -40° to +70°C. » Vibration: 20gs@10 to 80 Hz SAE J-1378. » Shock 55gs SAE J-1378 (tested and passed to 150gs, nearly 3 times the SAE specification!) » Humidity: 95%HSAE J-1378. » Salt Spray Test: MIL-STD-202G, Method 101E (5%NaCl @35C, 48 hrs). » Dust: Unit is 100%encapsulated ~ dust cannot enter. » Immersion:ASAEEP455 5.6 level 2. Immerse controller in tap water at temperature of 18C +/- 5C to a component top surface depth of 460mm. Orient in each of 3 orthogonal planes for 5 min in each plane. Upon removal, immediately subject to a cold soak of 19°C for 30 min. Return to dry atmosphere of 25°C for 60 min. No impaired function, no water entry. Ultraviolet: Q-Sun Xe-1-UVChamber to 720 Hours. » Thermal Shock: Controller stabilized at 70°C for 30 min. Removed from oven and immediately immersed in 0C water mixed with UV sensitive dye for a minimum of 5 minutes - repeated for a total of 10 cycles. Controller stabilized at -40°C for 30 min. Removed from chamber and immediately immersed into 25°Cwater mixed with UV sensitive dye for amini-mumof 5min - repeated for a total of 10 cycles. No functional failures or ingress of water. » Chemical:ASAEEP455.5.8.2 chemicals brush exposure. » Chemical test: Apply with a brush over the normally exposed surface area. Repeat once per day for three days. Check for impaired function or detrimental corrosion during the test and at the end of a 100 hour minimum interval following exposure to test condition. No defect from wiping the surface with the following chemicals at room temperature: engine oil, transmission fluid, gasoline. #DriveLineHarmony Electrical connection Gas Powered, Diesel or Electric Versions PIN OUT A Ground. B +12VDC Supply. C Clutch OUT + D Clutch RETURN. E RPM Tachometer trigger (for closed loop versions). Inductive for gas equipment, alternator output for diesel, other pickup options available. OEM Options » Other tachometer feedback (rotating shaft, controller interface, etc.). » Open loop soft start version with no tachometer feedback. » Voltage input options. » Multiple clutch engagement and tachometer profiles.
These general purpose clutches are used in a variety of applications usually driven by petrol or diesel engines. Typically bearing mountedclutches, which can be used in a variety of mobile, agricultural, industrial and marine applications. Mounted on either the driving or driven shaft. Supplied with either pulley or universal mounting flange tomount a sprocket, coupling adaptor or customer’s specialised pulley. The clutch can be engaged or disengaged froma remote location such as the cab in a truck or a control panel. Safety. RemoteActuation. Reduced Power Consumption from the Engine. Since the clutch is only engaged when it is required to run, engine horsepower can be utilized for other functions when the clutch is not driving. This is particularly important if horsepower is required to perform an independent driving function or in applications such as fans or blowers that consume a lot of horsepower and do not need to run all the time the engine is running. Simple Installation. In cases where the clutch is driving applications such as a stump grinder or a trencher, many times these can be fitted with an operator presence control so if the operator lets go of the handle, the clutch automatically disengages. Since electric clutches are not speed dependent, they can be engaged and disengaged at any point in their speed range. Operator Convenience. Rather than amechanical linkage which can cause an additional force required by an operator to engage a clutch, an electric clutch is engaged by a simple flip of a switch. Because the clutch is engaged electrically, this switch can be incorporated into a control panel so the operator does not have to be in the same location as the clutch when it engages. Since the clutch runs directly off the battery, all that is required is a basic switch to engage and disengage the clutch. 509812 149.14 / 110 3600 1" 12 / 50 Pulley 4.13 2/A 4.54 / 10.00 Part Static Torque Maximum Bore Volts / Watts Output Ref. Pitch Dia. Number of Weight 515609 149.14 / 110 3600 1" 12 / 47 Hub 3.62 UnivMt 4.54 / 10.00 509044 338.95 / 250 3600 1.438" 12 / 50 Pulley 4.65 2/A 7.26 / 16.00 516849 338.95 / 250 3600 1" 12 / 50 Pulley 4.65 2/A 7.26 / 16.00 Number Nm / ft-lbs rpm mm / inch Grooves kg / lbs 538567 149.14 / 110 3600 1" 12 / 45 Hub 4.49 UnivMt tbc 505894 149.14 / 110 3600 *Taper 12 / 50 Hub 2.75 UnivMt 4.99 / 11.00 515294 149.14 / 110 3600 25 mm 12 / 47 Pulley 4.07 2/3V 5.44 / 12.00 538649 149.14 / 110 3600 1" 12 / 45 Pulley 3.90 1 tbc 519225 338.95 / 250 3600 1.125" 12 / 50 Hub 3.90 UnivMt 7.26 / 16.00 535411 149.14 / 110 3600 1" 12 / 46.6 Hub 3.62 UnivMt 4.54 / 10.00 532747 542.33 / 400 3600 1.25" 12 / 68 Hub 0.00 N/A tbc 535528 542.33 / 400 3600 1.125" 12 / 68 Pulley 4.24 3/B 8.16 / 18.00 538332 542.33 / 400 3600 1.438" 12 / 68 Pulley 4.69 3 tbc 521325 338.95 / 250 3600 1.125" 12 / 50 Pulley 4.65 2/A 7.26 / 16.00 Can handle almost all direct engine mount clutch requirements in the 3.73 kW (5 hp) to 29.83 kW (40 hp)load range. www.jbj.co.uk/electromagnetic-clutches.html 14 #DriveLineHarmony General Purpose Clutches Introduction
Where possible, all parts in the clutch are e-coated to givemaximum corrosion protection. High Temperature Epoxy Coil. High Temperature, Longer LifeGrease. All models in this section use a heavy duty machined pulley.Astronger pulley resists damage due to abusive environments. Solid ForgedRotor. Different Coil VoltagesAvailable. Although 12 volt is themost common, 24 volts can also bemade available. Depending upon the quantity, other specialty voltages can bemade. To help prevent failure fromboth vibration and outside contaminants, all coils are sealed in the coil shell with a high temperature epoxy coating. Coldweather starting. By using a clutch, the load is not engaged at start up. This allows the engine to come up to full efficiency before engaging the clutch. This helps to prevent engine stalling. Aone piece solid forged rotor means no chance of internal parts separation. Our rotors also have an even wall thickness around the coil which gives optimum flux distribution, maximizing torque. All models include our special long life grease which has shown a significant improvement in life over other standard high temp greases. E-coating. ForgedMachined Pulley. Installation of General Purpose Clutches Pre-InstallationChecklist: Most of the time, general purpose clutches are mounted directly onto the engine shaft. If the installation is not on an engine shaft, please make sure that the tolerances are close enough to provide a snug fit between the bore of the clutch and the shaft (all engine manufactures should produce shafts within the required tolerances). Also, a standard rule of thumb is that the minimum amount of shaft engagement is the diameter of the shaft for one-piece designs (twopiece designs would require shaft engagement in both pieces). The shaft step radius needs to be smaller than the fillet on the clutch bearing or the clutch will not seat properly. If it does not, a spacer with a proper chamfer is required. Prior to installation, it is critical to determine the torque tab placement. The function of the torque tab is to keep the lead wires from pulling out of the clutch due to the bearing drag. This torque tab should have a freedom of movement both axially and radially of about 1/16 of an inch. The simplest type of torque tab restraint is some type of U-bracket that captures the torque tab but does not grab it firmly. In heavy vibration applications, a larger surface area is required to prevent notching of the torque tab and the restraining pin or bracket. Key Length andHeight. In many of the clutches, the key does not go all the way through the clutch. Therefore, the key length can only be as long as the keyway length within the rotor. Please check this before installation. In some clutches, the bearing inner race may be exposed on the top of the keyway. In this case, the key needs to be slightly undersized in this area so it does not force itself against the bearing inner race. Clutches can operate either clockwise or counter-clockwise. They can be mounted with the pulley toward the engine or away from the engine. This mounting is critical because this determines which direction the leaf springs are oriented. If springs are not run in tension, they could suffer premature failure because they will be running in compression. Direction of Rotation. Engine Shaft Size. Torque Tab Restraint. Installation Procedure. 1. Slide the clutch onto the shaft (for a two-piece clutch, slide the pieces on one at a time). Please make sure that the key is in the proper location. Do not force the clutch onto the shaft because if the key is slightly off, this can damage the key or the clutch bore. The shaft should extend into the clutch enough to support each component. The clutch should be slid onto the shaft until the bearing inner race on the clutch contacts a step, washer, or drive pulley. In all cases, themounting surfaces of these components need to be parallel to each other within 0.003” TIR. If these surfaces are not parallel, the clutch could become cocked on the shaft (this would show up as a wobbling pulley). The contact of these components to the bearing inner race can extend beyond the inner race because the seal is recessed (if you are using a washer, make sure it is not www.jbj.co.uk/electromagnetic-clutches.html 15 General Purpose Clutches Installation #DriveLineHarmony
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