Manual Wheelchair Bearings

One of the most common service tasks is to check and adjust or replace the bearings. It is at the bearing - not the wheel that actual movement occurs. Servicing bearings is relatively simple; identifying the need for service is even easier. The rewards realized from replacing a seized bearing make learning a little mechanics very worthwhile.
A manual wheelchair has twelve bearings. Wheel bearings (4), caster bearings (4), and caster stem bearings (4). All the bearings are straight bearings and are different to bike wheel bearings which have a cup and cone design that requires pre loading when adjusting them.
Find more at www.iwheel.ca