Industry’s standard shaft coupling
Accommodates for angular and parallel shaft misalignment
Fail-safe (will still perform if elastomeric “spider” fails)
No metal to metal contact
Resistant to oil, dirt, sand, moisture, and grease
Industry’s largest available selection from stock
A full L line coupling is comprised of 3 parts:
2 hubs (sintered iron for L035-L150 & cast iron for L190-276)
1 elastomeric spider (SOX/NBR, Urethane, Hytrel®, or Bronze)
Spider Performance Data (Standard Catalog)
SOX (NBR) Rubber (Standard Insert) – Nitrile Butadiene (Buna N) Rubber is a flexible elastomer material that is oil resistant, resembles natural rubber in resilience and elasticity.
Urethane – Greater torque capability than NBR (1.5 times), provides less dampening effect, and operates in a smaller temperature range. Good resistance to oil and chemicals. Not recommended for cyclic or start/stop applications.
Hytrel® – Flexible elastomer designed for high torque and high temperature operations. Excellent resistance to oil and chemicals. Not recommended for cyclic or start/stop applications.
Bronze – Rigid, porous oil-impregnated metal insert exclusively for low speed (max 250 RPM) applications requiring high torque capabilities. Not affected by extreme temperatures, water, oil, or dirt.