SFU4005 3.175mm Grinding Self-lubricating Heavy Duty Ball Screw


The SFU4005 3.175mm Grinding Self-lubricating Heavy Duty Ball Screw provides efficient transmission, high precision, micro-feed capabilities, and superior axial rigidity. Perfect for heavy-duty applications, it ensures minimal friction loss and operates quietly, making it an ideal component for high-speed machinery. Additionally, it offers customization options to fit various applications.

SFU4005 3.175mm Grinding Self-lubricating Heavy Duty Ball Screw

As part of ZLV’s innovative line of machinery equipment, the SFU4005 3.175mm Grinding Self-lubricating Heavy Duty Ball Screw represents the latest technological advances in the ball screw industry. With its exceptional features and high quality, it’s an essential piece of equipment for various industries, providing impressive precision, high speed, and a low friction coefficient, offering significant energy-saving potential.


Parameter SFU4005
Shaft diameter (mm) 40
Lead (mm) 5
Steel ball diameter (mm) 3.175
Nut Size (D, A, B, L, W, H, X,Q,n) 63, 93, 14, 55, 78, 70, 9,M8,1*4
Load (Ca ) 2110
Screw rod weight (kg/m) 10
Nut weight (kg/pcs) 0.6
Screw rod price (USD/m) 21
Nut price (USD/pcs) 15

SFU4005 3.175mm Grinding Self-lubricating Heavy Duty Ball Screw drawing

Features and Specifications

The SFU4005 3.175mm Grinding Self-lubricating Heavy Duty Ball Screw exhibits a plethora of advantageous features:

  1. Low friction loss, high transmission efficiency: The ball screw nut pair contains multiple balls performing rolling motion, resulting in high transmission efficiency. The driving torque is less than 1/3 of traditional sliding screw pairs, making it highly energy-efficient.
  2. High precision: Manufactured using advanced machinery equipment, the high precision of the ball screw is assured. The manufacturing environment strictly controls temperature and humidity, ensuring high-quality outputs.
  3. High-speed feed and micro feed: The use of rolling balls minimizes the starting torque, eliminating the crawling phenomenon seen in sliding motion. This results in precise micro feeds.
  4. High axial rigidity: The ball screw can apply preload, achieving negative axial clearance and thereby higher rigidity. It can increase the rigidity of the mother part due to the repulsive force of the ball.
  5. Transmission reversibility: The ball screw lacks self-locking, providing the advantage of transmission reversibility.

Composition and Classification

A ball screw consists of a screw, nut, steel balls, preload plate, reverser, and dust cover. There are several types of ball screws:

  1. Self-lubricating ball screw: Equipped with a removable oil-removal device, it doesn’t require a lubrication system, reducing oil change and waste oil disposal costs.
  2. Silent ball screw: It suppresses the noise generated by ball collisions by having a specially grooved ball spacer, ensuring smoother and quieter operation.
  3. High-speed ball screw: It offers high acceleration, high stiffness, high-speed feed, low vibration, and low noise. It is used in areas like fast feed in machine tools, high-speed cutting in grinding centers, and high-speed vertical load cutting centers.
  4. Heavy-duty ball screw: It can bear a substantial axial load, suitable for all-electric design machines, air compressors, semiconductor manufacturing devices, and forging manufacturing devices.

Additional Parameters

  1. Nominal diameter: The outer diameter of the screw. Common specifications include 12, 14, 16, 20, 25, 32, 40, 50, 63, 80, 100, 120 mm.
  2. Lead: The distance that the nut moves linearly when the screw rotates one round. Related parameters include nut movement speed and the linear thrust that the ball screw can provide. With a larger lead, the linear movement speed will be faster under the same rotation speed.
  3. Length: There are two concepts of length – overall length and thread length. Some manufacturers only calculate the overall length, but some manufacturers require the thread length. Thread length includes the total thread length and the effective stroke.
  4. Nut form: Different forms of the nut are represented by the first few letters in the model number. It can be divided into round flanges, single-edged flanges, double-edged flanges, and no flanges. In terms of nut length, there are single nuts and double nuts.
  5. Precision: According to domestic classification, the precision grades of ball screws are P1, P2, P3, P4, P5, P7, P10. In Japan, South Korea, and Taiwan, China, the JIS grade is used, namely C0, C1, C2, C3, C5, C7, C10.

In summary, the SFU4005 3.175mm Grinding Self-lubricating Heavy Duty Ball Screw, with its precise parameters and distinguished features, is a leading product in the industry, catering to various industrial applications. As part of the ZLV product family, it inherits a commitment to quality and innovation that continues to raise the industry standard.

Scroll to Top