Gyratory Crushers: Misunderstood Maintenance AggMan
The gyratory crusher is equipped with a cartridgetype, antifriction bearing, pinionshaft assembly. Pinionshaft assembly lubrication is a separate system; meaning oil from the circulating lubrication system never enters the pinionshaft housing. However, the same grade of oil, in most cases an ISO Grade 68, is used in both systems.