Couplings
Jaw Coupling
Flexible shaft coupling with elastomeric spider insert (NBR/PU) for vibration damping.
The industry-standard flexible coupling for pump and motor sets (Lovejoy / Rotex style). Consists of two metallic hubs interlocking over an elastomeric 'spider' insert that dampens torsional vibration and absorbs shock loads.
Representative image · Couplings
Specifications
Technical profile
- Construction
- Two 3-jaw or 4-jaw metallic hubs + central elastomeric spider insert
- Hub materials
- High-grade Cast Iron GG25 / Sintered Steel / Aluminum / SS316
- Spider compounds
- NBR Nitrile (80 Shore A), Polyurethane PU (92/98 Shore A), Hytrel
- Bore range
- 6 mm to 110 mm with standard DIN keyways or taper-bush mounting
- Torque capacity
- Up to 2,400 Nm nominal torque
- Misalignment
- Accommodates up to 1.3° angular and 0.5 mm parallel misalignment
- Temperature
- -40 °C to +100 °C (PU spider) / up to +120 °C (Hytrel spider)
Specifications are typical and vary by variant. Share your duty conditions for an exact recommendation.
Key benefits
Why this product
- Elastomer spider acts as a mechanical fuse — fails safely under extreme overload to protect pump shafts
- Dampens motor torsional vibration, preventing premature mechanical seal face shattering
- Fail-safe design allows hubs to interlock and continue driving even if rubber spider wears out
- 100% maintenance-free operation requiring zero grease or lubrication
Applications
Typical industries
ChemicalFoodPharmaBreweries
In the same range
Other couplings
Related categories
Need this jaw coupling for your line?
Share your duty conditions and drawings — our team responds with a technical recommendation and a firm quote.