Kai Xuan Reducing double ball bearing turntable bearings --- the military professional quality

Double Reducing ball bearing turntable turntable ring bearing has three seat, steel balls and isolation blocks can be directly discharged into the upper and lower raceway, according to the situation by force, arranged for different diameter ball up and down. This assembly is very easy to open, the upper and lower roller bearing arc angle are 90 degrees, can withstand large axial force and the overturning force. When the radial force is greater than the 0.1 times the axial force, the raceway to be specially designed. Double-row slewing bearing axial and radial dimensions are large, robust, particularly for applications that require above average diameter of tower cranes, truck cranes and other handling machinery.

Wheel bearings are widely used in lifting machinery, mining machinery, construction machinery, port machinery, ship machinery and mechanical high-precision radar and missile launchers and other large rotating device.
1
wind turbine yaw, pitch bearing rings of material selection 42CrMo, heat treatment using overall quenching, raceway surface hardening. Yaw, pitch bearing the force complex and withstand shock and vibration is relatively large, therefore, required to withstand the impact of both the bearing, but also bear a greater load. Wind turbine life requirements of the host 20 years, bearing the cost of installing a larger, thus requiring yaw, pitch bearing life but also to 20 years. Matrix hardness of bearing rings 240-280HB, able to withstand shocks without plastic deformation, and hardening the surface hardness of the raceway 55-62HRC, increase the contact fatigue life, in order to ensure long bearing life requirements.
2
crane ship crane ship normally used double reducer ball, four-point contact ball, three-row roll sub-structures within the tooth turntable bearing, according to the carrying capacity of different three-row roller slewing bearings are usually used for heavy duty cranes, wheel and four-point contact ball bearings double reducer ball for light-duty crane turntable. As the crane -20