Technical Information

August 13, 2019

Analysic for noise which caused by tower crane slewing ring

It is common for noise of tower crane slewing bearing during processing, while this situation happened, you should cut off the electricity, to find a solution […]
August 9, 2019

Repair & Maintenance of slewing bearing

Introduction Tower crane plays an important role in the construction machinery industry, and it is also commonly used in people’s daily life which seems irrevocable tendency. […]
July 6, 2019

Calculation of the friction torque of the Slewing Bearing

There are many factors that affect the friction resistance of the slewing ring, so it is difficult to calculate it accurately. The following formula is usually […]
June 28, 2019

Tips for Material selection of slewing bearing

When choosing the raw material of ring gear, we should consider the following principles. Firstly, the mechanical and physical properties of the steel should meet the […]
June 26, 2019


Before installing the slewing bearing, checking the mounting surface of the main machine, and the supporting spare parts should have sufficient strength. The connecting surface should […]
June 18, 2019

slewing bearing for marine crane

installation site The ship crane is mainly composed of rotating tower, boom, fixed base post welded to the deck, lifting, tilting and swinging mechanism, hydraulic power […]
June 17, 2019

The correct way to install slewing bearing

Before installing the slewing bearing (turntable bearing), first we have to examine the installation surface. This requires that the bearing has enough stiffness. The connection surface […]
June 14, 2019

slewing bearing soft belt installation skills

The raceway of turntable bearing usually needs heat treatment. The usual process is: forging → roughing → machining → finishing → raceway surface quenching →raceway surface […]
June 13, 2019

The selection of small gears for slewing bearings

When designing the small gear teeth, one of the important parameters is the modulus. The gnawing of the gears produces a gnawing pulsation,which is due to […]