Series HS Single Row Ball Slewing Bearing Internal Gear


Slewing bearing also known as slewing ring bearing, turntable bearing.It contain outer ring, inner ring, rolling body, seals.The material of our products are generally high alloy-structural steels, such as 42CrMo 50Mn.The slewing bearing can work normally at a temperature of -30℃ to +70℃, and we can design special type as customer need.

Characteristic of structure, performance and application:

The single row four point contact ball slewing bearing is composed of two seat rings, which design in compact structure and light weight, steel ball contact with the circular raceway at four point, it can bear the axial force, radial force and the tilting moment at the same time.

It can be used for slewing conveyer, welding manipulator, light & medium duty crane, excavator, and other construction machinery.

Our advantage:

1. Fast: Be good at adapting, simple organization, high working efficiency, be creative and accept all kinds of customization.

2. Flexible: streamlined personnel, short communication path, and problems can be solved quickly, perfect after -sales services.

3. Efficient: employees have higher comprehensive ability, high work efficiency, high output, good quanlity and short product delivery time.

Why choose Helin:

1. Helin slewing bearing is located in Xuzhou, a very famous Construction Machinery Base, and has its own stable, technically sound design, development, and manufacturing team.

2. The physical factory has a strong R&D team, and production equipment is advanced, production equipment is continuously increased and updated, and there are molding batch production lines with clear division of labor and high production efficiency. (Standard models with raw material in stock, delivery time within 7 days.)

3. The slewing bearing is exported to more than 30 countries, which obtain high praise and recognition from customers all over the world.And our engineer can come to your country to do measurements.


1. nl-number of lubricating holes, evenly distributed, lubricating nipple M10*1 JB/T7940.1-JB/T7940.2.

2. Mounting hole n-¦µ, may be replaced with screw hole, tooth width b may be taken as H-h.

3. Gear force of periphery given in the table is its maximum value, nominal force of periphery is taken 1/2 of the given value.

4. The spaceshift coefficient given in the tolde is the data of outer tooth, while that of inner tooth is +0.35.


Country of origin

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