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 Ball screw manufacturer

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Company name: Nantong Gaorun Machine Tool Accessories Co., Ltd

Contact person: Mr. Chen

Tel: 0513-83697868

Fax: 0513-83697868

Mobile phone: 13962731568

         18012236066

Email: ntgrjc @ 163.com

Address: No.8 Weizhi Road, 300m north of xiaohuaqu, Qidong City

Website: zuiqiushi.com

FB / FZ ball screw pair

FB / FZ ball screw pair

  • Classification: FB / FZ ball screw pair

  • Number of hits:
  • Date of issue: 2020/02/29
  • Online inquiry
Detailed introduction

Product features: stable rotation and compact structure.  

Additional application: small transmission torque, high effective travel ratio.  


1 Ball screw pair characteristic

1. High transmission efficiency

The transmission efficiency of the ball screw pair is 85% - 95%, which is 2-4 times of that of the traditional sliding screw pair, as shown in Fig. 1

The torque can get larger thrust force, and it can also be converted from linear motion to rotary motion (reversible motion).

 Ball screw pair


2. Smooth motion

The ball screw pair is a point contact rolling motion, which has low friction resistance, high sensitivity, no vibration when starting and no crawling at low speed. Therefore, the feed can be controlled precisely.


3. Accuracy

The ball screw pair has small temperature rise in motion, and can pre tighten the axial clearance and pre stretch the screw to compensate for thermal elongation, so it can obtain high positioning accuracy and repeated positioning accuracy.


4. High solid

The rolling contact parts of steel balls are hardened (hrc58-63) and precision ground. The rolling friction and friction loss is very low, which has high service life and precision retention


5. Good synchronization

Because of its smooth motion, sensitive response, no block and no slip, several identical ball screw pairs can drive several identical components or devices at the same time, which can obtain better synchronous motion.


6. High reliability

Compared with other transmission machinery and hydraulic transmission, the failure rate of ball screw pair is lower, and the maintenance is relatively simple, so general lubrication and dust prevention are needed. It can work without lubrication.


2、 Side use of ball screw

For: CNC machine tools, precision machinery, measuring instruments and optical, electrical, mechanical integration of equipment, as precision positioning parts, can obtain better response speed, positioning accuracy and repeated positioning accuracy, and easy maintenance, long service time.

Used in: General metallurgy, textile, household goods and other machinery and aerospace, aviation, national defense industrial fields and production automation lines, as transmission parts, it can obtain the effect of labor-saving, time-saving, compact and easy to use.

Practice has proved that the traditional sliding screw pair, cylinder, oil cylinder or other linear moving mechanism can be replaced by ball screw pair, and satisfactory economic and social benefits have been achieved. Under the conditions and environment: for example, it requires reversible motion, synchronous motion, high temperature, low temperature, high pressure, vacuum, strong magnetic field, no lubrication, corrosive medium, instantaneous high-speed and low-speed conversion and other occasions, it can be used as precise positioning, automatic control drive mechanism and motion conversion in many fields of national economy.

We sincerely hope that people of insight from all walks of life develop our company's experience accumulated for decades, and jointly manufacture ball screw accessory products.


3、 Instructions for ball screw pair

l. The product has been cleaned and rustproof before leaving the factory. Please do not open it at will.

2. When using this product, the raceway should be strictly protected, so as not to affect the accuracy.

3. Do not allow the nut to go over the travel. In case of accidental dislocation, please send it back to our factory for reassembly.

4. During installation, ensure that the axis of the lead screw is parallel to the corresponding guide bus; the bearing seat and nut seat at both ends of the machine tool are in three points; the connecting shaft head of the lead screw and the motor shaft head are naturally concentric. The screw pair is subjected to radial force, bending moment and alternating motion rejection moment in the process of movement to ensure its service cleanliness and service life.

5. In order to ensure the movement accuracy, please control the axial movement of the lead screw within 5um and ensure the rigidity of each connection.

6. In order to ensure the service life, please strictly prevent iron chips, dust, impurities and other particles from entering the working area of lead screw pair, and ensure good lubrication state. This product can choose lithium grease or lubricating oil with kinematic viscosity (40 ℃) of 28.5-74cst. Refer to table-12 for oil supply standard. Please consider forced lubrication and cooling when high speed and heavy load.

7. When using the external lead screw, please put the return bead cannula above.

8. When the screw pair is used vertically, there must be measures to prevent the screw pair from automatically reversing.


 Ball screw company


Website: http://zuiqiushi.com/product/559.html

key word: Model of ball screw , Principle of ball screw pair , Ball screw manufacturer

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