How to install spherical roller bearings correctly?

Spherical roller bearings have two types of inner holes: cylindrical and conical, and the taper of the conical taper hole is 1:30 and 1:12. This conical inner hole bearing is equipped with an adapter sleeve or a withdrawal sleeve. The tapered inner hole self-aligning ball bearing can be easily and quickly assembled on the optical shaft or the stepped machine shaft.

• How to install spherical roller bearings correctly?

• What are the specific measures to improve the black skin of the outer ring raceway edge of spherical roller bearings?

• What is the assembly method of spherical roller bearings?

How to install spherical roller bearings correctly?

Spherical roller bearings are equipped with drum-shaped roller bearings between the inner ring with two raceways and the outer ring with spherical raceways. The center of curvature of the outer ring raceway surface is consistent with the center of the bearing, so it has the same self-aligning function as the self-aligning ball bearing. When the shaft and housing are deflected, the load can be automatically adjusted and the axial load in two directions. Large radial load capacity, suitable for heavy loads and shock loads. The inner diameter of the inner ring is a bearing with a tapered bore, which can be directly mounted. Or install it on the cylindrical shaft using an adapter sleeve and a dismantling sleeve. The cages of spherical roller bearings use steel stamping cages, polyamide forming cages and copper alloy turning cages.

What are the specific measures to improve the black skin of the outer ring raceway edge of spherical roller bearings?

Specific measures to improve the black skin of the outer ring raceway edge of spherical roller bearings:

(1) Strictly control the width dimension deviation of the ferrule during turning to create conditions for the turning of the raceway;

(2) Strictly control the position error of the raceway during turning;

(3) Appropriately reduce the curvature radius of the outer ring raceway during turning to suppress the heat treatment deformation;

(4) Reduce the grinding allowance of raceway turning to improve the grinding efficiency. It can be seen that most of the unilateral black skin of the outer ring raceway of the spherical roller bearing is caused by excessive groove position deviation or excessive height deviation during turning, while the double-sided black skin of the raceway is mostly caused by heat treatment deformation.

What is the assembly method of spherical roller bearings?

According to different spherical roller bearing assemblies, such as: directly by the axial compression of the inner bearing inner ring, the bearing preload nut is rotated, and the inner and outer rings are rotated to eliminate the gap and achieve the purpose of bearing preload. Achieving common use: first, well over the preloaded bearing, last of the nut, then back 1/4 turn. Assembly method, the advantages of this method are less investment, simple, practical, and consistent with the premise of good quality tapered roller bearings, it can be used.

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