in stock cross roller slewing ring

1.Cross Roller Slewing Ring

Cross roller Slewing rings and turntable bearings can accommodate axial, radial and moment loads. They are not housed or mounted on a shaft, but are instead mounted directly to a seating surface. The inner and outer rings are supplied with mounting holes and often include internal or external gears.

There are several basic types of products. Single-row slewing rings and turntable bearings feature a single row of balls, a standard bearing raceway, and four points of contact between the balls and raceway. Double-row products feature two rows of ball bearings, two raceways, and eight points of contacts for each ball.

Slewing rings and turntable rings with three independent rows of rollers are also available. Cross rollers have a single row of rollers with the axes of alternating, adjacent rollers at right angles to one another. Cross roller Slewing ring and turntable bearings with a single row of balls and a single row of rollers are designed for small radial runout and high thrust roads.

Typically, inserted raceways are made of wire and use either a ball or roller as the contact element.

Cross roller Slewing ring and turntable bearings vary in terms of physical dimensions and operating specifications. Bore size, outside diameter and overall width are the most important physical dimensions to consider. Metric bores are measured in millimeters (mm) and specified according to a standard numbering system that ranges from 00 (10 mm) to 20 (100 mm).

Bore sizes 00, 01, 02, and 03 are 10 mm, 12 mm, 15 mm, and 17 mm, respectively. For bore sizes 04 and up, multiplying the bore size by 5 yields the bore diameter. Slewing rings and turntable bearings that are measured in inches (in) or fractions of an inch are also available.

For flanged bearings, the outside diameter excludes the size of the flange. Overall width includes the size of the locking collar, if present. In terms of operating specifications, the most important measurements to consider are static axial or thrust load, static radial load, and moment load. Typically, these specifications are measured in pounds (lbs) or feet-pounds (ft-lbs).

Single-row four point contact ball slewing bearing is generally composed of two rings, compact, light weight, and circular raceway ball four point contact, can withstand the axial force, radial force and overturning moment, according to the customer You can use different occasions were selected ring, install and easy to use with an internal or external gear teeth.

Rotary conveyors, welding operation machine, small cranes and excavators and other construction machinery can be selected

2.What is a crossed roller bearing

The single row crossed roller bearing is composed of two seat rings, which design in compact structure and light weight; this single row crossed roller type slewing bearing has the steel roller for the rolling element, not for the steel ball.

As the rollers are 1:1cross arranged, it is suitable for high precision mounting and capable to bear axial force, resultant moment and considerable large radial force. The axial and radial clearance is smaller than single row ball slewing bearing. The rotating is not so flexible as the one row ball bearings, usually it use for some higher precision applications.

Our single row crossed roller slewing bearing ring’s axial and radial clearance’s precision is high.

Single row crossed roller ring bearings are mainly made of 50 Mn, 42CrMo and C45.

The single row crossed roller bearing has been widely used in many applications:

1. Military product

2. Automation machinery, Robots

3. Medical equipment

4. Radar equipment

5. Tank

6. Grinding machine and drilling machine.

Cross roller slewing bearings are primarily used when a single row ball slewing bearing does not meet operating performance requirements for high stiffness, high precision, as well as rotation torque.

The clearance is usually smaller than single row ball slewing bearing, from 0-0.03mm (preload). Because the rollers are 1:1 cross arranged, this compact structure is capable to bear axial force, tilting moment and much more radial force.