They are rubber sealed ball bearings, which offer smooth rotation, great precision of attachment as well as simplified upkeep.
• 850 Sealed Ball Bearings x2
• Applications consist of TRF420 and TA07MS center shaft area, and M-chassis gears.
• utilizing ball bearings instead of synthetic and metal bearings provides better parts fit and much more efficient rotation.
• These ball bearings employ rubber seals as opposed to metal people – this allows you to open them up to neat and work on them.
• Low-friction oil can be used to lubricate the interior workings.