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Drive couplings
Splined flexible coupling

Clutch coupling

Flexible coupling (highly flexible flange coupling)

Flanged rubber coupling: an 8-hole flange, a straight-walled body, a thick top disc and an internal splined hub.

Connection
SAE J620 flange / Spline
Internal teeth
47
Rubber
40 / 50 / 65 Shore A
Service
Lubrication-free

Product information

The clutch coupling links the engine flywheel to a hydraulic pump, gearbox or transmission and transmits torque. It consists of a flange, a flexible element and an internal splined hub. The flexible element absorbs vibration and shocks and keeps the drive working even with slight shaft misalignment, so the engine, pump and bearings wear less.

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PDF catalogue

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Before ordering, check that the outer diameter, number of mounting holes and number of internal teeth (splines) match your machine.

Applications

  • excavators, loaders and other special machinery
  • diesel generators and compressors
  • industrial pump units

Advantages

  • reduces vibration and noise
  • protects the engine and pump from shock loads
  • mounts easily on 8 bolts; the holes have aluminium bushings
  • black anti-corrosion coating

Main functions and advantages

  • Damping of torsional vibration

    The high-quality natural rubber element minimises dynamic shocks and torsional vibration in the system.

  • Misalignment compensation

    Effectively neutralises axial, radial and angular shaft offsets (misalignment) and protects the bearings of adjacent units from wear.

  • Reliability

    The design needs no maintenance (maintenance-free) and withstands long-term heavy loads.

  • Easy installation

    Axial plug-in system: the shafts slide easily into the spline connection by axial movement.

Construction

  1. 1Outer flange (Flange)Rigid steel housing with special holes for bolting to the engine flywheel to SAE standards.
  2. 2Flexible layerDamping ring made of special heat-resistant rubber.
  3. 3Internal spline hub (Spline Hub)Precisely sized internally toothed unit that takes the involute splines of the pump or compressor shaft.

Applications (compatible machinery)

  • Air compressorsAtlas Copco XAS 77 / XAS 97 / GA series, Kaeser M50 / M57 / M100 and others.
  • Construction machineryMortar pumps and pneumatic conveyors from Putzmeister, Mortel Meister, Brinkmann and others.

Technical specifications

Products can also be manufactured to the customer's drawings and technical requirements, including larger diameters.

Clutch coupling — Technical specifications
ParameterCharacteristic / Description
Spline teeth47
Flange holes8, with aluminium bushings
Flange diameter≈ 300mm
Top disc diameter≈ 248mm
Height≈ 88mm
MaterialSteel + rubber
TypeHighly flexible flange coupling (Highly flexible flange coupling)
Connection typeExternal bolted flange (to SAE J620) / internal spline connection (Spline)
MaintenanceNot required (runs without lubrication)
FeaturesIsolates noise and vibration, reduces dynamic load

Dimensions are estimated from the proportions in the photos. Ask a manager for exact dimensions.

Before ordering, check that the outer diameter, number of mounting holes and number of internal teeth (splines) match your machine.

Parts and materials

  1. 1Top plate and ring — Steel
  2. 2Splined hub — Steel
  3. 3Elastic element — Natural rubber, 40 / 50 / 65 Shore A
  4. 4Outer flange — Steel
  5. 5Bushings (8 pcs) — Aluminium

Request this product

Send us the diameter, operating conditions and timeline — we will reply with an engineering review and an indicative price.