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Good Quality 231.20.0644 standared series XD Bearing

231.20.0900.013 Specifications

Type of raceway structure Single raceway(Standard bearing type21)
Max Outer diameter 742.8mm
Min Inner diameter 534mm
Overall height 56mm
External bolt circle diameter 685mm
Internal bolt circle diameter 562mm
Module 8mm
Tooth Number 129
Theoretical Weight 47.2kgs


Product type advantages

The flank surface of ring is provided with a grease cup, steel balls is assembled between the external ring and internal ring on integration. each ball is separated by spacer, the steel balls and the spacers are installed through the load plug, and the taper pin to protect the ball running. Light type profile slewing bearing has the same structure with general slewing bearing , it features in weight , swivel flexible.

Order advantage

why choose us 

1.More than 25 years slewing bearing produce and sale

2.Can produce integrated bearing from 100mm to 5000mm

3.ISO9001support quality

4.Custom different type

5.already cooperated with many domestic listed company

6.usually quote within 24 hours after we get your inquiry. If you are very urgent to get the price,please call us or tell us in your e-mail so that we will regard your inquiry priority.


Construction machinery, such as tower cranes, excavators, mobile cranes, other types of cranes, piling machines, and truck-mounted concrete pumps, etc.  metallurgical and mining equipments, rock drilling machine, crushing machine

Other similar models

Bearing with external gear:

231.20.0400.013(typ 21/520.1)

231.20.0500.013(typ 21/650.1)

231.20.0600.013(typ 21/750.1)

231.20.0700.013(typ 21/850.1)

231.20.0800.013(typ 21/950.1)

231.20.0900.013(typ 21/1050.1)

231.20.1000.013.(typ 21/1200.1)

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