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Insert Selection

Browning® type L jaw couplings are designed for applications in the light-to-medium duty range. The capacities and performance characteristics depend on the type of insert used. For maximum versatility in selection, BROWNING offers four different insert materials to suit the application.

BUNA-N – this is the standard flexible insert material in Type L Jaw Couplings, serving the majority of applications. The material is an oil resistant rubber compound with excellent flexibility and shock absorption. The temperature range is -40°F to +212°F.

URETHANE – the urethane insert offers approximately 50% greater torque capacity than standard Buna-N. In addition, the urethane insert provides good chemical resistance. Temperature range is -30°F to +160°F.

We offer HYTREL^®, which is a tough flexible plastic material and which provides still greater torque capacity, approximately three times that of standard Buna-N. It also has a superior temperature resistance with a range of -60°F to 250°F. Oil and chemical resistance are excellent.

BRONZE – this insert is intended exclusively for high torque, low speed applications, up to 250 RPM only. Capacities are three times those of standard Buna-N. The material offers excellent resistance to oils, chemicals and extreme temperatures (-40°F to +450°F).