Features:
1.Made of Bearing Steel, with groove.
2.OD:6mm, ID:30mm, Load-bearing: 355KG.
3.Groove bearing pulley, use for high-grade automatic sun room, mobile garage doors, transmission machinery, etc.
4.High sealing performance, high operation performance.

Specifications:
Material: Bearing Steel
Color: Black + Silver
Groove :U Groove
Load-bearing(each): 355kg
Inner Diameter(ID): 6mm
Outer Diameter(OD): 30mm
Overall Size: 6 x 30 x 8mm/0.24 x 1.18 x 0.31 inch(ID x OD x H)
Weight: 25g

Package include:
1 x Bearing Pulley