Low Noise Cnc Ball Screw SFS

Description

Ball screws are used in aircraft and missiles to move control surfaces, especially for electric fly through wire, and in automobile power steerage to translate rotary motion from an electric motor to axial motion of the steering rack.

They are also used in machine tools, robots and precision meeting equipment. High precision ball screws are used in steppers for semiconductor manufacturing.

Due to the high mechanical efficiency of ball screws, the torque required to operate a ball screw is approximately 30% of conventional screw-driven transmission.

Product Description

Flanged Nut Ground Ball Screw SFS1605.Ball screw makes use of balls to roll. The screw shaft has an arc contour, this contour on the shaft in accordance to a certain angle of rise (lead Angle) hovering on the shaft. The ball is designed to roll in the nut, in the arc profile of the screw shaft, so it is rolling friction. Fix one end or both ends of the screw shaft along the axis,drive the ball screw with a motor to rotate, and the nut of the strip ball will move along the axis of the ball screw.

Features

1. High transfer efficiency

Balls with free motion in the ball screw assembly transfer the force and motion between screw and nut. This transfer mode replaces the traditional transfer mode that screw shaft and nut effect directly. Therefore the minimum rolling friction takes place of the sliding friction of traditional screw. The transfer efficiency of ball screw will attain greater than 90%. The drive torque of transfer unit reduces to 1/3 of sliding screw. This also greatly reduces the heat release.

2. High positioning accuracy

Ball screw has low warmth release, small temperature increase and with actions of pre-stretch and eliminating axial clearance in the process, which make ball screw have high positioning accuracy and repeating positioning accuracy. Positioning deviation can be 0.002mm per 300mm travel.

3. Clean and smooth,excellent surface finish

Ball screw has no sticky friction.ISO management systems ensure strict performance during production and experienced talent staff combing precision machine and optimized process flow causing super quality smooth ball screw.Each ball screw will go through ultrasonic earlier than assembly.

4. Long service life

Since the strict control of ball screw groove shapes, surface hardness and material selection, the actual life of ball screw is much longer.

5. Good synchronization

Due to smooth running, axial clearance elimination and consistency in manufacturing, several sets of ball screw assembly can drive the equal unit or several identical parts to obtain the good synchronization.

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