Groz BBR-2/RTW/1-2/3-8/STD Ball Bearing (Front End) – Spare for RTW/3-8/STD & RTW/1-2/STD

The Groz BBR-2/RTW/1-2/3-8/STD is a ball bearing (front end), a spare part for Groz's RTW/3-8/STD and RTW/1-2/STD. A ball bearing uses a ring of hardened steel balls to let a rotating shaft spin with far less friction than it would running directly against its housing. This lets a technician replace just the worn part during a service, rather than the larger assembly that it sits inside.