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jbj Techniques Limited
Electromagnetic clutches and brakes available from jbj Techniques Limited

Electromagnetic clutches and brakes available from jbj Techniques Limited

Product catalog summary

Introduction
This document provides an overview of electromagnetic clutches and brakes, emphasizing their applications in mechanical power transmission and hydraulics. It highlights the company's capability to offer both standard and customized solutions, supported by a team of design engineers and a well-stocked warehouse for prompt product supply.

Product Specifications
The document details various products, including electromagnetic clutches, brakes, and related components, focusing on high-quality mechanical and fluid power products with customization and rapid delivery options.

Applications
Electromagnetic clutches are used in applications such as air conditioning compressors, hydraulic pumps, water pumps, and vacuum pumps, essential in industries like utilities, marine, and mobile services for reliable performance in long-life applications.

Components and Design
Clutches consist of three main sub-assemblies: rotor assembly, field assembly, and armature assembly. The rotor assembly includes the pulley and bearing, the field assembly contains the coil and backing flange, and the armature assembly comprises the armature disc, springs, and hub.

Operation
Clutches operate based on magnetic attraction. When energized, the armature engages with the rotor, driving the pump shaft. Disengagement occurs when the voltage is turned off, allowing springs to create an air gap.

Product Range
The document lists various types of clutches and brakes, detailing their torque ranges and specific applications, including electromagnetic tooth clutches, spring-applied brakes, and multiple-disk clutches.

Conclusion
The document concludes by emphasizing the company's commitment to providing tailored solutions and maintaining high standards in product quality and customer service.

Overview of Mobile Clutches
Mobile clutches are composed of three main sub-assemblies: field assembly, rotor assembly, and armature assembly, working together to engage and disengage the clutch through electromagnetic forces.

Specifications
Clutches range in size from 78.64 to 2033.73 Nm and offer multiple pulley configurations. They are interchangeable with Pitts and Warner Electric models.

Design and Functionality
Engagement is facilitated by magnetic attraction, with banana slots in the rotor and armature allowing multiple points of flux connection, increasing torque.

Advantages
Benefits include simple installation, operator convenience and safety, cold weather starting, extended pump life, reduced engine horsepower consumption, and lower operator costs.

Durability Features
Models feature a heavy-duty machined pulley, high-temperature epoxy-coated coils, and e-coated parts for corrosion protection.

Technical Data
Includes detailed technical specifications and dimensions for various clutch models, highlighting torque, voltage, and physical dimensions.

Installation Procedures
Outlines installation steps for different clutch types, emphasizing proper alignment, securing the rotor/armature assembly, and connecting lead wires to the electric circuit.

Maintenance and Burnishing
New clutches require a burnishing process for full torque, involving cycling the clutch at reduced speed. Maintenance guidelines stress keeping the clutch free from contaminants.

Troubleshooting
Advises on troubleshooting common issues during installation and operation, with a recommendation to refer to the online troubleshooting guide for further assistance.

Specifications and Features
Highlights corrosion protection, high-temperature components, heavy-duty pulley and rotor design, voltage options, and sealed coils.

Installation Guidelines
Includes a pre-installation checklist, key length and height specifications, direction of rotation, and burnishing procedures.

Troubleshooting and Maintenance
Emphasizes contamination prevention and provides a troubleshooting section for installation or operational issues.

Product Models and Specifications
Details various series like MIC, AMC, and AMB, with specifications on static torque, bore sizes, and voltages.

Applications
Designed for a variety of industrial applications, including marine, mobile, and general industrial use, suitable for environments requiring high torque, fast response, and reliable performance.

Conclusion
Highlights the versatility and reliability of the electromagnetic clutches and brakes offered by the manufacturer, emphasizing their suitability for various industrial applications due to their robust design and performance features.

Catalog excerpts

Electromagnetic clutches and brakes available from jbj Techniques Limited-1

ELECTROMAGNETIC CLUTCHES & BRAKES

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Electromagnetic clutches and brakes available from jbj Techniques Limited-2

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. MACHINE SHOP: full machining services for bespoke designs and prompt turnaround. BELLHOUSINGS / COUPLINGS » bellhousings » wet mount bellhousing (NEW) » spider couplings » gear couplings » all steel gear couplings (ATEX) » 'JXL' couplings (AtEX) » tyre couplings (ATEX) » torque...

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Electromagnetic clutches and brakes available from jbj Techniques Limited-3

Electromagnetic Clutches Typical Applications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Mobile Clutch Weights & Measurements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Installation & Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Component Parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ....

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Electromagnetic clutches and brakes available from jbj Techniques Limited-4

Electromagnetic Clutches PHT Permanent-Magnet Hysteresis Clutch/Brake (Torque range 0 to 7 Nm / 0 to 62 in-lbs). . . . . . . . . . . . HB Electromagnetic Hysteresis Brake (Torque range 0.05 to 1 Nm / 0.4 to 8.9 in-lbs).. . . . . . . . . . . . . . . . HC Electromagnetic Hysteresis Clutch (Torque range 0.05 to 1 Nm / 0.4 to 8.9 in-lbs). . . . . . . . . . . . . . . . MDC Electromagnetic Multiple-Disk Clutch (Torque range 17.6 to 8400 Nm / 13 to 6196 ft-lbs). . . . . . . . . MDB-N Electromagnetic Multiple-Disk Brake (Torque range 17.6 to 1119.9 Nm /13 to 826 ft-lbs). . . . . . . . MWC Electromagnetic...

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Electromagnetic clutches and brakes available from jbj Techniques Limited-5

Electromagnetic Clutches OGURA INDUSTRIAL CORP Rotor Assembly Magnetic Flux Path Field Assembly Pump Shaft 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...

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Electromagnetic clutches and brakes available from jbj Techniques Limited-6

Electromagnetic Clutches Typical Applications OGURA INDUSTRIAL CORP Auto air conditioning compressors Air compressor and vacuum pumps Hydraulic pumps Water pumps Advantages of use: » Reduced horsepower consumption from the engine. » Extended pump life. » Lower operator cost. » Simple installation. » Operator convenience/safety. » Cold weather starting. Mobile Clutches: 78.64 to 237.27 Nm (58 to 175 lb-ft). These are ﬂange mounted, normally a two piece construction clutch typically mounted directly on to the pumps. Solid forged rotor. A one piece solid forged rotor means no chance of internal...

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Electromagnetic clutches and brakes available from jbj Techniques Limited-7

Electromagnetic Clutches Mobile Clutch Weights & Measurements (Metric) _OGURA INDUSTRIAL DORR *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: [email protected]

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Electromagnetic clutches and brakes available from jbj Techniques Limited-8

Electromagnetic Clutches Mobile Clutch Weights & Measurements (Metric) OGURA INDUSTRIAL CORP 8000 Series Mobile Clutch Dimensions (metric) Bore ID Output Hub Side Pilot (mm) Mounting Flange Side Pilot (mm) Field Mount (inches) Part Number Groove Width Hub I/O Lockup /Output Hub Bolt Bolts Bolt Holes (in) (inches) (inches) *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 shoul

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Electromagnetic clutches and brakes available from jbj Techniques Limited-9

Electromagnetic Clutches Mobile Clutch Weights & Measurements (Imperial) OGURA INDUSTRIAL CORP 8000 Series Mobile Clutch Dimensions (inch/pound, Imperial) Part Number Overall Diameter (inches) Overall Length (inches) Output Hub Side Pilot (in) Mounting Flange Side Pilot (in) Groove Width Hub I/O Lockup /Output Hub Bolt Bolts Bolt Holes (in) (inches) (inches) Field Mount (inches) *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...

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Electromagnetic clutches and brakes available from jbj Techniques Limited-10

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Electromagnetic clutches and brakes available from jbj Techniques Limited-11

Electromagnetic Clutches OGURA INDUSTRIAL CORP Mobile Clutches [78 to 237 Nm (58 to 175 lb-ft ) torque] Installation Procedure 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 two major subassemblies: the ﬁeld and the rotor/armature assembly. 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...

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Electromagnetic Clutches OGURA INDUSTRIAL CORP 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 » Solid forged rotor & pulley or hub. » 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....

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