Oil Seal TC 140x160x15mm S684ZZ Sprag clutch bearings allow torque

Sprag clutch bearings allow torque transfer in one direction and free spin in the other

TRF12GUUE NB Triple Wide Round Flange Pilot End Type Miniature Slide Bush

They help align and lock in your bearing without extra parts:

Tiger Shark

SSUCFT208-40mm Stainless Steel Flange Unit 2 Bolt Ball Bearing

Oil Seal TC 140x160x15mm S684ZZ Sprag clutch bearings allow torqueThe TC140x160x15 is a double lip rotary shaft seal, block out dirt & lock in grease or oil. Designed for a shaft diameter of 140mm Width 15mm, with a bore diameter 160mm Nitrile Rubber Lip Material. Item Sku : TC140x160x15 Type : Oil and Grease Seal TC 140x160x15 mm Shaft diameter (inner): 140mm Housing bore (outer): 160mm Width : 15mm Size : 140mm x 160mm x 15mm Oil and Grease Seal Material : Nitrile Butadiene Rubber Temperature Range : 40 to 248F