3/4" ID x 1-5/8" OD x 7/16" M2 Sealed Jackshaft Bearing, Junior Sprint

Fits Hyper & D1 Jack Shaft Assembly.

When it comes to your bearings, reducing friction and rolling resistance translates to increased speed! The M2 process introduces a treatment to metal surfaces to reduce friction and drag, enhance oiling capabilities, and prolong life. M2 bearings begin as the highest quality Superior bearings. After adding the M2 treatment, all sealed bearings are repacked with DAYLube™ High Performance Grease. 

Very little amount of grease is needed for these bearings. DAYLube™ High Performance Grease is highly recommended for this product as it does not fling off and is compatible with the treatment.

When pressing the bearing in, do not press on the inner race, only apply force to the outer race. Pressing on the inner race will damage the bearing balls and cause premature failure.