WISON Agricultural bearings are widely used in conveyors, lawn mowers, combines, hay balers, planters/grain drills, augers, cotton strippers, and more. They are designed to stand up to extreme conditions and loads. There are many different designs available. Their basic components are inner and outer rings, balls, and retainers. The inner race can be round, square, or hex, and the outer race can be either cylindrical or spherical. Most agricultural bearings are sealed on both sides with single, double, or triple lip.