Description 4x12x5mm U Groove Track Roller Bearing With extended inner ring width of 5mm 4x12x5mm U Groove Track Roller Bearing With extended width of 5mm Item: Shielded Pulley U Groove Track Roller Bearing Type: U-groove ball bearing Standard: Metric Closures: 2 Metal Shields Size: 4mm x 12mm x 5mm Inner diameter (Bore): 4mm Outer diameter: 12mm Outer Ring Width: 4mm Inner Ring width: 5mm Quantity: One Bearing *0.5mm dimension tolerance
