MR137-2RS Black Bearing B3 7x13x4 mm - UB-137-B3

General description

• Especially for cycling, this range with an intermediate quality is perfect to resist to the constraints all roads
• Mostly, this bearing is already mounted on your bike (OEM)
• Each component (balls, rings, cages and grease) are manufactured and assembled with precision
• The Black Bearing B3 bearing match 100% to replace your original bearings
• Chrome steelballs SAE52100 abec 3
• Chrome steel rings SAE52100
• Chrome steel cage
• « 2RS » seals wet and dust resistance
• High quality grease