Home | Back | Contact us BRONZE BEARINGS & WEAR PLATE Cast bronze bearings, flanged bearings, split bearings, wear plate and made to order machine parts are available with oil grooves, grease grooves, graphite grooves and graphite plugs. Graphite filled Groove & Graphite Plug Style Bearings Oil & Grease Groove Style Bearings *Double loop groove & double figure eight groove recommended for grease only Grease Grooves vs. Oil Grooves Grease grooves are typically wider and deeper than oil grooves. This is to hold a supply of grease and to provide for the thick grease to be forced in. Oil grooves typically vary in width but are shallower than grease grooves. Most oil grooves are operating in a constant loss or closed oiling system that continually feeds the less viscous oil to the grooves.