The permissible r.p.m. of universal joints with friction bearing DIN 808 is to a large extent dependent on the type of application such as load, duration, angular disposition as well as lubrication . For over 1000 r.p.m. universal joints with needle bearing should be used
For continuous use ample lubrication is essential. This achieved by fitting the joint with a grease filled gaiter GN 808.1.