Oil Seal TC 52x80x12mm - TC Double Lip NBR Rubber Oil Seal with Garter Spring NU315S286MYC126T179 set of 2 These precision

set of 2 These precision ball bearings are designed for BB30 standard bottom bracket closures

6910 Open Ball Bearing 50x72x12 Chrome Steel (single)

NA4909 Bearing

deep groove radial bearing

Oil Seal TC 52x80x12mm - TC Double Lip NBR Rubber Oil Seal with Garter Spring NU315S286MYC126T179 set of 2 These precisionThe TC52x80x12 is a double lip rotary shaft seal, block out dirt & lock in grease or oil. Designed for a shaft diameter of 52mm Width 12mm, with a bore diameter 80mm Nitrile Rubber Lip Material. Item Sku : TC52x80x12 Type : Oil and Grease Seal TC 52x80x12 mm Shaft diameter (inner): 52mm Housing bore (outer): 80mm Width : 12mm Size : 52mm x 80mm x 12mm Oil and Grease Seal Material : Nitrile Butadiene Rubber Temperature Range : 40 to 248F Ideal for both