Large Turntable Bearing 131.45.2500 For Excavator Use

Slewing ring bearings can accommodate axial, radial and moment loads acting single or in combination and in any direction. They are not mounted in a housing or on a shaft, but directly to a seating surface. The inner and outer ring are supplied with mounting holes. Both rings may have integral gears. They are also referred to as slewing rings and tabletop bearings. Slewing ring bearing can perform oscillating (slewing) as well as rotating movements. They may be used without gears or with internal or external gears. Following the drawing of customers' design.

There are ball bearing, roller bearing and ball-roller bearing at type; There are single-row, double-row and three-row at structure. With teeth and without teeth on conduction(outer or inner ring); At dustproof and leak grease proof type, with airproof and without airproof. At mounting with flanged(outer or inner ring), with bolt hole and without flanged.

Single-row four point contact ball slewing ring: 
010(no gear) 011.012(external gear) 013.014(internal gear) 
HSB(no gear) HSN(external gear) HSW(internal gear) 
QN(no gear) QU(extrnal gear) QW(internal gear)

Cross roller bearing: 
110(no gear) 111.112(external gear) 113.114(internal gear) 
HJN(no gear) HJB(external gear) HJW(internal gear) 

Double-row ball slewing ring: 
020(no gear) 021.022(external gear) 023.024(internal gear) 

Three-row roller slewing ring: 
130(no gear) 131.132(external gear) 133.134(internal gear)

Turntable bearing (slewing ring), also known as slewing ring bearing turntable, an affordable large-scale integrated load bearing, Be able to support large axial, radial load and overturning moment. Wheel bearings are generally of a mounting hole, inner gear or outer gear, lubrication holes and sealing devices, which can host design, compact structure, guidance is simple, easy to maintain. wheel bearings with or without gear, external gear and internal gear wheel four-point contact ball bearings, double row angular contact ball wheel bearings, cross-cylindrical roller wheel bearings, cross-tapered roller wheel bearings and three-row cylindrical roller recombination turntable bearing four series.

1) Single-row four-point contact ball slewing bearing 

2) Single-row four-point contact ball slewing bearing(with flange) 

3) Single-row four-point contact ball slewing bearing(with internal gear) 

4) Single-row four-point contact ball slewing bearing(with external gear) 

5) Ball-roller type slewing bearing(with gear teeth) 

6) Triple-row cylindrical roller slewing bearings(with gear teeth) 

7) Four-Point Contact Ball Slewing Bearing(without teeth) 

8) Double row four point contact roller slewing bearing 

9) Cross roller slewing bearing 

10) Cross roller slewing bearing(with gear teeth on inner ring) 

11) Cross roller slewing bearing(with gear teeth on outer ring)