Oil Seal TC 146x170x18mm Metal Shield They’re shielded on both sides

They’re shielded on both sides to block dust and debris and come pre-lubed for instant use

Shielded ball bearings are super handy for keeping grease in and debris out

6700ZZ Ball Bearings

✔️ Si3N4 Silicon Nitride - High Strength and Lightweight

Oil Seal TC 146x170x18mm Metal Shield They’re shielded on both sidesThe TC146x170x18 is a double lip rotary shaft seal, block out dirt & lock in grease or oil. Designed for a shaft diameter of 146mm Width 18mm, with a bore diameter 170mm Nitrile Rubber Lip Material. Item Sku : TC146x170x18 Type : Oil and Grease Seal TC 146x170x18 mm Shaft diameter (inner): 146mm Housing bore (outer): 170mm Width : 18mm Size : 146mm x 170mm x 18mm Oil and Grease Seal Material : Nitrile Butadiene Rubber Temperature Range : 40 to 248F