Cast iron housing
fitted with a standard re-greaseable bearing insert, which has a set screw
lock. This locking arrangement consists of two knurled cup-point, self-
locking, socket-head set screws fitted in the extended inner ring. Self-lube
bearings are factory charged with the correct amount of grease and do not
require a further grease charge when being fitted. Re-lubrication is not
normally necessary except when operating at extreme temperature, speed,
loading, extended running or where excessive wet or dirty conditions exist. The
housing is provided with a tapped hole to facilitate relubrication and supplied
with a plastic plug and grease nipple, tapped ¼” UNF.