R8-2RS Ball Bearing: Pack of 20 pcs R8-2rs ball bearings, dimensions: 1/2"x1-1/8"x5/16" (12.7mm x 3.18mm x 7.938mm).
1/2 Inch Bearings: R8 2rs ball bearings has small friction coefficient, high speed limit, simple structure, low manufacturing cost.
Deep Groove Bearings: Both sides with seals made of rubber for high sealing effect, to keep lubricant in and contaminants out.
R8-2RS Miniature Ball Bearing: Rolling bearings use rolling elements to maintain the separation between moving parts to reduce rotational friction and support radial and axial loads.
Widely Used in Precision Instruments, micro motor, building a mono rail for workshop, conveyor belt project, windmill, motors, roller skates, skateboards, snow mobiles etc industries.