... carbide insert4,Color: can be as you like 5,Size: from any other regular size available from1.8 ... o-rin provides adequate sealing for bearing durability .5.size and model we can provide: 60mm,65mm, ... ,127mm(5”)130.1mm(5 1/8”),133.3mm(5 1/4”),139.7mm(5 1/2”),142.8mm(5 5/8”), ... 149.2mm(5 7/8”)152 ... 250.8(9 7/8”)269.8(10 5/8”),295.3(11 5/8”)311.1(12 1/4”),346 ...