Power at Work: The case of the misleading grease nipple

Most vehicle wheel bearings are greased the same way. But our expert recently encountered one trailer bearing that could cause you problems if you don’t approach it properly

by KEITH BERGLIND

Vehicle wheel bearings basically have always been greased the same way. You pack the bearings with grease, then install the bearings in an enclosed hub, with an inner seal and an outer cap. There is no provision to add grease. There are no grease nipples.

This is the best way. The bearings are packed with an approved wheel bearing grease and the hub is sealed to keep out normal dirt and water.

Better Farming - August/September 2010