This reveled the source of [Peter’s] problem; no lubricant, not on the linear rails and not on the lead nut or lead screw. Over time, the un-lubricated Z axis linear ball bearings had worn 4 ...

Schaeffler has introduced the line of INA steel stainless steel radial insert ball bearings (RIBBs) designed specifically to meet the stringent requirements of the food and ...

Some vehicles have upper and lower front ball joints, and depending on the suspension design either can be the load-bearing joint ... that don’t need periodic lubrication (“greasing” them ...