... in different dimensions starting from 4mm (0.157) shaft dia. to 300 mm (12") shaft dia. & in different designs like TC, SC ... make on your design; 3. Different sizes of Oil Seal, Rubber Oil Seal, Rubber Seal, also can make on your request. 4. Optional ... color for you of the Oil Seal, Rubber Oil Seal, Rubber Seal, Rubber Gasket, O-Ring: Black, red, yellow, brown ...