BBH Series Crossed Cylindrical Roller Bearings

Parameters of BBH series crossed cylindrical roller bearings

Features of BBH series crossed cylindrical roller bearings

Integrated structure of inner and outer rings: The inner and outer rings of BBH series bearings adopt an integrated structure, which makes the bearings stronger and more stable. This design is suitable for rotating applications with both outer and inner rings.

High precision: The precision grade of BBH series bearings can reach P2/P4 grade, and the rotation runout is accurate to 0.001mm. High-precision manufacturing and assembly ensure the accuracy and reliability of the bearings.

Crossed roller design: This series of bearings adopts a unique crossed roller design, which makes it capable of bearing loads in all directions. This design enhances the load carrying capacity and rigidity of the bearing for multi-directional load applications.

Optimized heat treatment process: BBH series bearings ensure high stability and reliability through strict control of heat treatment process, including multiple tempering and stress relief. Such process optimization helps to improve bearing life and performance.

Bearing clearance of BBH series crossed cylindrical roller bearings

(1) Introduction to bearing clearance

In all kinds of bearing products, the bearing clearance is one of the important parameters. Simply speaking, the clearance between a single bearing or a system composed of several bearings is the bearing clearance. The bearing clearance can be divided into two types: One is the axial clearance and the other is the radial clearance, which is determined by the bearing type and measurement method.

(2) Adjustment of bearing clearance

The adjustment of the bearing clearance should be reasonable, no matter it is too large or too small. It will affect the service life of the bearing and the operation stability of the equipment using the bearing. Different bearing types have different adjustment methods for bearing clearance. When purchasing BBH series crossed cylindrical roller bearings, you can communicate with the manufacturer in advance, and let the manufacturer decide whether to produce bearings with non-adjustable clearance or free-running clearance adjustable bearings.

The clearance of non-adjustable bearings is determined before the bearing leaves the factory. Our common cylindrical bearings, deep groove ball bearings, and self-aligning bearings are such bearings. The clearance setting of this kind of bearing has relevant standards in the industry. Of course, we can also set a specific clearance interval. Generally speaking, as long as the size of the shaft and bearing seat is determined, the matching amount of the matching inner ring and outer ring is also determined, so the clearance after installation cannot be changed. However, if it is a device that requires the precision of the bearing clearance, it cannot use a bearing with non-adjustable clearance.

Bearings with adjustable clearance can obtain a certain clearance by changing the relative axial position on the bearing raceway. Such bearings include tapered bearings, angular contact ball bearings and thrust bearings.

(3) Factors affecting bearing clearance

Reasonable bearing clearance can be determined by bearing load, operating speed, design parameters and desired working conditions. However, in the application of bearings, if we do not have sufficient experience and calculate the clearance value after bearing installation, We cannot directly adjust the bearing clearance.