Product Reviews/Trail Rides and Other Cool Stuff — bearings

The Polaris wheel bearing was originally designed for the old 800 RZRs which were light weight. Heavier newer machines need better bearings and that is why Polaris changed the Turbo R, Pro S and Pro R to unit bearings. I do not think an overkill bearing is bad. If you need a better bearing, put the better one in. Look how often the 3515090 Polaris bearings fail with 35s. Bearings require proper torque to set internal clearances (lash). Any bearing will fail if the nut comes loose and the internal clearance is lost. Sandcraft claims their 4x bearing is good...