Specifications:
Bearing Model: 608ZZ
Material: Engineering plastics + bearing steel
Brand: CNBTR
Color: Black
Inner diameter: 8mm
Outside diameter: 30mm
Thickness: 10mm
Groove width: 6mm
Groove depth: 3mm
Radius: R=3mm
Weight:57g
Bearing Weight: 99KG

Features:
1.[Design]:These Pulley Rail Ball Bearings adopts with a U-shape groove design, which have smooth surface to reduce friction--These Pulley Rail Ball Bearings adopts with a U-shape groove design, which have smooth surface to reduce friction.
2.[Scope of application]Ideal for replacement roller of sliding window, door, printer machine etc.
3.[Size]Overall size: Outside Diameter 30mm/1.18inch, Height 10mm/0.39inch, U-Type Size: Width 6mm/0.24inch, Depth 3mm/0.12inch, Shaft Hole Diameter: 8mm/0.31inch, Max Load-bearing: 99kg/218lbs.
4.The item contains 4 pieces of pulleys in one set that you many use for many projects upon your purposes.
5.If you have any question about the product, feel free to contact the CNBTR Service and we will try our best to give you a satisfactory answer.

Package Content:
4 x bearing guide pulley

The unique MPN label on each inner package, which confirm it passed the quality inspection and it is genuine item sold from our shop. Please offer it to us when you need assistance.