NOTICE: This is not the 5x10x4 bearing normally used in clutches. The 5x10x3 Halo series of bearings are a high quality steel/chrome bearing with metal shields. These bearings have been tested and proven by many racers. Check your manual for the correct size for your vehicle if you are not certain.

• METRIC: 5mm (Inner) x 10mm (Outer) x 3mm (Width)
• STANDARD: 0.19685" (Inner) x 0.3937" (Outer) x 0.11811" (Width)