U Groove Roller Bearing BS62312.5-5 3x12.5x5mm ID 3MM OD 12.5MM Thickness 5MM U Groove Pulley Roller For Sliding Door specifications:

Model: BS62312.5-5

Diameter: 3x12.5x5mmwheel

Bearing Material: GCr15 Chrome Steel

Plastic Material:POM

Shape: U Groove

Seals Type: rubber seals/ metal shields

Suitable for: furniture, hardware accessories, mobile door, glass sliding door, aluminum door and window, shower pulley and drawers

Fashionable,slide flexible,smooth operate. 

Window slide roller small plastics roller wheel sliding roller wheels door  product pictures and drawing:

What are plastic coated bearing rollers used for?

POM covered bearing rollers for sliding system, window roller, sliding roller, sliding wheel, door roller, automactic machine.

Built-in precise 623-2Z ball bearing, model Injected with POM，low noise, elegant performance and rolling smoothly.

Coated with deep groove ball bearings, fashionable, slide flexible, compression wear. suitable for furniture hardware accessories, mobile doors, glass sliding doors, aluminum doors and windows, shower pulleys and drawers, etc.wardrobes and other furnitures...

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What are common materials for plastic roller wheels?

POM, Nylon, PA, PU, PEEK, POK, TPU material, POM and nylon is most of customer's choice.