The tolerance level of linear bearings
is also the accuracy level, which is generally divided into 0, 6, 6X, 5, 4, and 2 levels.
Each tolerance level linear bearing has different requirements in size, rotation and appearance quality. The higher the level, the stricter the requirements and the more perfect the product performance. The price of the product will be higher. (Old tolerance grade codes are G, E, Ex, D, C, B).
The clearance in the linear bearing is to ensure that the linear bearing can run flexibly and without blocking, and at the same time, it is required to ensure that the linear bearing runs smoothly.
The accuracy grade of linear bearings is not directly related to the clearance of linear bearings. Radial clearance of radial linear bearings is generally divided into C2, C0, C3, C4, and C5 groups. The value range of the clearance is from small to large.
In theory, each group of linear bearing tolerances can choose each group of clearance, but the choice of clearance group must be based on specific working conditions, temperature, load and linear bearing configuration In order to achieve the various precision functions of linear bearings.