SFU1604 2.381mm Grinding Self-lubricating Heavy Duty Ball Screw


The SFU1604 2.381mm Grinding Self-lubricating Heavy Duty Ball Screw is an innovative, high-precision mechanical component designed for heavy duty applications. It ensures optimal performance with minimal friction loss, high transmission efficiency, precise micromotion, and excellent axial rigidity. Tailored to your specific requirements, it offers a comprehensive solution for efficient, quiet, and reliable linear motion.

SFU1604 2.381mm Grinding Self-lubricating Heavy Duty Ball Screw

The ZLV SFU1604 2.381mm Grinding Self-lubricating Heavy Duty Ball Screw is an exceptional mechanical component designed for high precision applications. It is tailored to offer top-notch performance, durability, and efficiency in various industrial applications such as CNC machines, robotics, and automation systems.

Its unique design incorporates a 2.381mm steel ball diameter, contributing to its excellent transmission efficiency, high speed and micro-feed, high axial stiffness, and reversible transmission characteristics. The product is characterized by minimal frictional losses, which results in improved performance and longevity of your machinery.


The product features a well-thought-out design and high-quality materials to ensure superior performance and extended lifespan. Here are the detailed specifications:

Model specifications SFU1604
Shaft diameter (d/mm) 16
Lead (I/mm) 4
Steel ball diameter (mm) 2.381
Nut size D:28, A:48, B:10, L:40, W:38, H:40, X:5.5, Q:M6,n:1*4
Load(Ca) 937
Screw rod weight (kg/M) 1.58
Nut weight (kg/pcs) 0.15
Unit price (USD) Screw rod: 4.6, Nut: 3

SFU1604 2.381mm Grinding Self-lubricating Heavy Duty Ball Screw drawing

Key Features

  1. Low friction loss, high transmission efficiency: The ball screw has a multitude of steel balls performing rolling motion between the screw shaft and nut, leading to high transmission efficiency. This results in a driving torque of less than 1/3 compared to traditional sliding screw pairs, making it energy efficient.
  2. High precision: Manufactured using state-of-the-art machinery, the ball screw offers high precision. Strict controls over temperature and humidity during grinding, assembly, and inspection processes ensure the utmost precision is maintained.
  3. High-speed feed and micro-feed: The ball screw employs rolling ball movement, hence requiring minimal starting torque, avoiding crawling phenomena common in sliding motion, thereby ensuring precise micro-feed.
  4. High axial stiffness: The ball screw can apply preload, which allows for negative axial clearance, resulting in higher stiffness.
  5. Non-self-locking, reversible transmission feature: This ball screw provides a reversible transmission functionality, offering flexibility in operation and control.

Components and Categories

The ball screw comprises a screw, nut, steel ball, preload plate, reverser, and dustproof device.

  • Self-lubricating ball screw: Has a detachable oil removal device, eliminating the need for lubrication pipeline systems and equipment, reducing oil change and waste oil disposal costs.
  • Silent ball screw: Features a special groove-shaped ball spacer, minimizing noise produced by the collision between balls, rendering smooth and quiet operation.
  • High-speed ball screw: Boasts high acceleration, high stiffness, high-speed feed, low vibration, and low noise. Ideal for applications like high-speed cutting center machines and high-speed vertical load cutting centers.
  • Heavy-duty ball screw: Capable of withstanding high axial loads, suitable for air pressure machines, semiconductor manufacturing equipment, and forging manufacturing devices.

Parameter Details

  1. Nominal Diameter: The outer diameter of the screw. Common specifications are 12, 14, 16, 20, 25, 32, 40, 50, 63, 80, 100, 120.
  2. Lead: The distance the nut moves linearly when the screw rotates one full turn. The lead relates to the moving speed of the nut and the linear thrust provided by the ball screw. The larger the lead, the faster the linear movement speed under the same rotation speed.
  3. Length: The length includes the total length and the thread length. The thread length is divided into the total thread length and the effective stroke. The thread length equals the effective stroke plus the nut length plus a design margin.
  4. Nut Form: There are many forms of nuts, the first few letters of the general model represent the nut form. Depending on the flange form, there are round flanges, single-edged flanges, double-edged flanges, and non-flange types.
  5. Precision: The ball screw is classified according to domestic grades of P1, P2, P3, P4, P5, P7, P10.

To ensure that this product suits your needs, the ZLV SFU1604 2.381mm Grinding Self-lubricating Heavy Duty Ball Screw can be customized according to your specific requirements, enhancing its versatility across a wide array of applications. This will give you the flexibility to achieve optimal performance in your respective application.

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