[5Pcs White]
Shape: Flat
Outer Dia(D): 30mm
Width Dia(B): 11mm
Screw(M): M6
Material: POM
Bearing NO.: 608 ZZ
Bearing Material: Chrome Steel
Bearing Size.: 8x22x7mm
Bearing Seal.: Metal Shielded
Feature: Low noise, Stable performance, and high load capacity.
Application: Injection molding machines, Tool cabinets, Furnitures, Machine parts, ...etc.
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