SG1000K Ryobi Angle Grinder - Overview

It is a genuine OEM replacement part and is sold individually. This Ball Bearing is sealed on both sides. Ball bearings are used to reduce friction between rotating parts. The balls or rollers take the load and spin, distributing the weight evenly while the minimal contact area of the ball reduces friction. This reduces wear on the tool a...Read morend allows it to run smoothly. Bearings experience constant wear when the tool is in operation from pressure, heat, vibration and friction. Because of this, many Bearings need periodic maintenance or replacement.