Oil Seal 1.496x 1.89x 0.315 Inch Rubber ID 1.496 OD 1.89 rb68 This handy answer explains why

This handy answer explains why ceramic bearings shine in tough setups

NA4920 Bearing

The TC35x50x9-In is is a double-lip rotary shaft seal built to block out dirt and lock in grease or oil

Item Sku : TC140x160x14-In

Track Roller Bearing

Oil Seal 1.496x 1.89x 0.315 Inch Rubber ID 1.496 OD 1.89 rb68 This handy answer explains whyThe TC38x48x8 In is is a double lip rotary shaft seal built to block out dirt and lock in grease or oil. Designed for a shaft diameter of 1. 496" Width 0. 315" For Bore Dia. 1. 89" Nitrile Rubber Lip Material. Item Sku : TC38x48x8 In Type : TC 1. 496"x 1. 89"x 0. 315" Inch Inner : 1. 496" Outer : 1. 89" Width : 0. 315" Size : 1. 496" x 1. 89" x 0. 315" Seal Material : Nitrile Butadiene Rubber Temperature Range : 40 to 248 F