Set of 2, 8 x 32 x 12 mm Black Plastic Steel Ball Bearing Guide Pulley Round Roller Wheel for Door Window

Inner diameter 8 mm, outer diameter 32 mm, thickness 12 mm, spherical radius r = 8 mm. Please confirm if the product size information meets your requirements before purchasing. HIGH-QUALITY MATERIALS: Made from high-quality materials for long-term use. PRACTICAL FEATURES: The surface of the spherical arc pulley is smooth and burr-free, offering good operating performance and flexible sliding. PRACTICAL FEATURES: The spherical arc pulley supports the rotating mechanical body and reduces the coefficient of friction during its movement.