Product Details1.Made from Carbon Steel, durability and resistance to under heavy loads2.Shields on BOTH SIDES of the bearing to keep dust out. Suitable for high speed operation3.Size: 688ZZ (Inner Dia.=8mm, Outer Dia.=16mm, Thickness=5mm)4.ABEC Tolerance 1 (P0) for most general use5.Same As 688ZZ / 688-2Z / 2080088. Pre-Lubricated, Easy to maintain.
eBay