They truly are plastic sealed ball bearings, that provide smooth rotation, great precision of attachment and simplified upkeep.
• 840 Sealed Ball Bearings x2
• Applications include TA07 chassis pulleys, and M-chassis countertop gear area.
• Using ball bearings in place of synthetic and metal bearings provides better elements fit and much more efficient rotation.
• These ball bearings utilize plastic seals rather than metal individuals – this enables someone to start them around neat and use them.
• Low-friction oil may be used to lubricate the interior workings.