These are rubber sealed ball bearings, that provide smooth rotation, great precision of attachment as well as simplified maintenance.
• 850 Sealed Ball Bearings x2
• Applications consist of TRF420 and TA07MS center shaft area, and M-chassis gears.
• Using ball bearings as opposed to synthetic and steel bearings gives better components fit and more efficient rotation.
• These ball bearings use rubber seals instead of metal ones – this allows you to start them up to neat and focus on them.
• Low-friction oil can be used to lubricate the inner workings.