Parallel shafting & Dry Sliding Linear Bushes

Sleeve-type linear motion bearings, more so than ball bushings, requires parallel shafting to be aligned as closely as possible to avoid edge loading. Edge loading can cause higher than expected friction and subsequent wear. Ask us if you have any application questions.

To combat shaft mis-alignment, we offer two options:

1. Self-aligning bearings: a subtle OD radius allows the bearing to pivot on the bearing crown.
2. Bearings can be supplied with self-aligning o-rings to provide for a "full float bearing". Unlike our self-aligning bearings, floating bearings on 0-rings result in changes between shaft centreline to housing tolerances due to deflection and possible mechanical sets.

If you have an overhung load, bearings on a single shaft must be a minimum of 1/2 the length of the moment arm. If a moment arm is 20" in length, bearings must be 10" apart to avoid binding.