Detailed Product Description

The important significance of development is as same as change of bearing from rolling motion to sliding motion. Because of excellent friction function, ball screw is widely used for all kinds of industrial equipments and precision instrument. Especially in recent years, as linear motion function machine parts, ball screw is widely used in machine tools. It promotes the CNC development of machine tools thoroughly. These depend on following characteristics:
High transfer efficiency

balls with free motion transfer the force and motion between screw and nut in the ball screw assembly. This transfer wise replaces the traditional direct function wise between screw and nut. Therefore the minimum rolling friction takes the place of the sliding friction of traditional ball screw. The transfer efficiency of ball screw will reach more than 90%. The drive torque of transfer unit reduces to 1/3 of sliding screw. This reduces the heating largely.

High positioning accuracy

Ball screw has low heat rate and small temperature increase. In the machining the measures have been taken to prolong and preload so as to avoid axial clearance. Ball screw has high positioning accuracy and repeating positioning accuracy.

Reversibility

Ball screw has not sticky friction like sliding screw. It clears crawl which exist during transference. Ball screw can realize two transfer wisefrom rotary motion to linear motion and from linear motion to rotary motionand transfer momentum.

Long service life

Because of strict control of shape of running track, surface hardness and material, the actual life of ball screw is much longer than sliding screw.

Good synchronization

due to smooth running, avoidance of axial clearance and consistency of manufacture, several sets of ball screw can drive same unit or several same parts. The synchronization is good.
Structure type of ball screw:
There are 8 models of standard nut in our precision grind ground ball screw assembly. Otherwise in order to meet customers requirements, we can manufacture non-standard nut such as special shape ( quadrate nut, nut with axial lines cross ),special function ( high temperature proof and corrosion proof nut ) and over long specification ( lengthening, heavy load). Welcome to enquiry, if you have any requirements.
Structure type of ball screw:

There are 8 models of standard nut in our precision grind ground ball screw assembly. Otherwise in order to meet customers requirements, we can manufacture non-standard nut such as special shape ( quadrate nut, nut with axial lines cross ),special function ( high temperature proof and corrosion proof nut ) and over long specification ( lengthening, heavy load). Welcome to enquiry, if you have any requirements.
Safe use of ball screw
Lubrication

1) In order to make use of function of ball screw, ball screw must be lubricated in working condition. There are following lubrication methods:

2) Lubrication grease
The quantity of lubrication grease is generally 1/3 of inner space of nut. Before the ball screw leaves factory, Lithium lubrication grease GB7324-94 2# has been brought into inner space of nut.

3) Lubrication oil
The quantity standard of lubrication oil is shown as Tab.16. But it is changeable as difference of travel, sort of lubrication, use condition( heat control). Please pay attention.