What is screw ball bearing?

Screw ball bearing is a kind of bearing composed of screw, nut, reversing device and ball for converting rotary motion into linear motion or linear motion into rotary motion.

The characteristics of screw ball bearing
The ball screw pair has the characteristics of high precision, reversibility and high efficiency. This is a further extension and development of the trapezoidal screw. The important significance of this development is to turn the sliding action of the trapezoidal screw into a rolling action. Because of its small frictional resistance, screw ball bearings are widely used in various industrial equipment and precision instruments.

Use of screw ball bearing
In order to adapt to various purposes, the ball screw pair provides a wide range of standardized products. Ball circulation methods include circulating duct type, circulator type and end cap type. Preloading methods include positioning preloading (double nut method, bit preloading method) and constant pressure preloading. The appropriate type can be selected according to the application.
The screw has high-precision grinding precision ball screws (the accuracy is divided into 7 levels from CO-C10) and the cold-rolled screw ball bearing formed by high-precision cold-rolling processing (the accuracy is divided into 3 levels from C-C10) Level, only a few can do it).

In addition, in order to cope with the urgent delivery of users, there are finished products that have been processed on the shaft ends, semi-finished products and cold-rolled screw ball bearings that can be freely processed on the shaft ends. As the peripheral parts of this bearing, the screw support unit, nut support, lock nut, etc. necessary for use have also been standardized and can be used by users.

ZYSL screw ball bearing is based on product technology accumulated over the years. From materials, thermal management, manufacturing, inspection to shipment, it is managed by a rigorous quality assurance system, so it has high reliability.

(1) Double push screw ball bearing a free way
The fixed end of the screw is free. The fixed end bearing bears both axial force and radial force. This support method is used for short lead screws with small stroke.
(2) Double push screw ball bearing one support method
One end of the screw is fixed and the other end is supported. The fixed end bearing supports both axial and radial forces
The supporting end bearing only bears radial force? And it can make a small amount of axial float to avoid or reduce the bending of the lead screw due to its own weight. At the same time, the thermal deformation of the lead screw can freely extend to one end.

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