Single Row Cross Roller Slewing Bearing (11 Series)

High precision single row cross roller slewing bearing  (11 Series)

Structural characteristics

The single row cross roller slewing bearing is made of two seat rings. It is featured with compact structure, light weight, high manufacturing accuracy, small assembly gap and high requirement for installation accuracy. Rollers are 1:1 cross- arranged through spacers. It can bear axial force, overturning moment and large radial force at the same time.  In addition, the crossed roller slewing bearing does not cause one-sided contact or locking of the rollers. At the same time, because the inner and outer rings of the standard crossed roller slewing bearing are divided structures, the clearance can be adjusted even if a preload is applied.

Features

The advantages of crossed roller slewing bearing over ordinary slewing bearing:

1. The accuracy level that the cross-roller slewing bearing can achieve is much higher as well as the radial runout and axial runout compared with ordinary slewing bearing.

2.  Cross roller slewing bearing is with high stiffness and rigidity and also suitable for low-noise working environment.

3. The structure of crossed roller slewing bearings is relatively simple. By means of a row of cylindrical rolling elements arranged in a row on a single raceway, a fairly large bearing can be obtained. In order to achieve the same effect, ordinary slewing bearings must be sequentially arranged on three rows of raceways through three rows of cylindrical rolling elements. In this way, the crossed roller slewing bearing takes up much less space and is lighter in weight than the ordinary three-row roller slewing bearing, which brings great convenience in design and assembly. 

Technical Parameters

Product Service

According to the requirements of ISO 9001-2008, HGB has established a set of standard quality control system, from raw material procurement to product information feedback. We have detailed documentation and reports. All testing tools of the product are rechecked twice a year.

Material quality control: The materials are made of steel ingots from well-known steel factories, purchased from large forging factories. All forgings have regular quality certificates of ingots and forging qualification certificates.

HGB inspector and purchasing department are responsible for the production process report of all forged parts.

The material will be re-inspected before entering the HCB factory, HGB inspector will inspect every forging to confirm the quality of forgings.

All our products can provide CCS, ABS, DNV, GL certificates and provide third-party inspection.