Replacement Crusher Bearings Messinger Bearings can be found on many rock crushing machine brands, including , Cedarapids, El Jay, JCI, , Pioneer (KPI), Universal, and many others. Messinger is one of a few OEMs that has manufactured the large radial and thrust roller bearing parts used by the rock crusher industry.
Bearing speeds and loads are generally moderate, but, on occasion, the load spikes as uncrushable material passes through the chamber. In a typical jaw crusher, two outer bearings located on either side of the main frame support an eccentric shaft, while two inner bearings support a moveable jaw. These are commonly known as "pitman" bearings.