1Pack U-Type Stainless Steel Pulley Mute Bearings Groove Sliding Roller3351

But there be a depending on the material and angle used. Type: U Type Single Wheel Pulley Block. 1 x U-Type Single Wheel Pulley Block. U-Type Groove Depth: 6mm. U-Type Groove :inner width:16mm,outer width:22mm.

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