Crossed roller bearings

With the rapid development and increasing maturity of domestic high-precision processing equipment, the requirements for bearings are getting higher and higher. As a high-precision and high-rigidity bearing, cross roller bearings are widely used in various industrial fields. This article will introduce the types and selection methods of HONB cross roller bearings so that you can better understand their applications and selections!

HRB series

This type (integral inner ring, split outer ring) is the basic type of cross cylindrical roller bearings. The outer ring is divided into two pieces, and the inner ring is an integral structure. It is more suitable for occasions requiring inner ring rotation accuracy.

HRBH series

This type of inner and outer rings are both integral and without mounting holes. Fixed flanges and support seats are required for installation. Both the outer ring and the inner ring are integral structures, which can obtain stable rotation accuracy and torque. It is suitable for occasions where the outer ring and inner ring rotate but have miniaturization requirements.

HRU series

This type (integral inner and outer rings, with mounting holes) does not require fixed flanges and support seats for installation because both the outer ring and the inner ring have mounting holes. In addition, since both the outer ring and the inner ring are integral structures, installation has almost no effect on performance, so stable rotation accuracy and torque can be obtained, which is suitable for occasions where the outer ring and the inner ring rotate.

HSX series

Under the same shaft journal, this type (split outer ring and integral inner ring) has a smaller cross-sectional size than the HRBH type. Due to the ultra-thin design, there are no mounting holes for the outer ring and the inner ring, and a fixed flange and support seat are required for installation.

HRAU series

This model has an integral structure for both the inner and outer rings, which can be used for inner ring rotation or outer ring rotation; because the outer dimensions are minimized to the maximum, and the bearing has high rigidity, rotation accuracy and composite load-bearing capacity, it is suitable for parts that require light weight and compact design, such as the rotating parts of robots and manipulators, direct drive motors, medical equipment, measuring instruments and other fields.