SFS4010 6.35mm Quiet Heavy Duty Ball Screw


SFS4010 6.35mm Quiet Heavy Duty Ball Screw

The ZLV SFS4010 6.35mm Quiet Heavy Duty Ball Screw is a premium product that excels in high efficiency and precision. A perfect tool for your industrial applications, its distinctive features and specifications mark it as the optimal choice for various machinery and equipment. This product offers customization options to meet your unique requirements.

Specifications and Basic Parameters

Here is the tabulated form of the product specifications:

Model specifications SFS4010
Shaft diameter (d/mm) 40
Lead (I/mm) 10
Steel ball diameter (mm) 6.35
Nut Size (D, A, B, L, W, H, X, Q,n) 63, 93, 14, 63, 78, 70, 9, M8,3.8*1
Load (Ca) 5399
Weight (Screw rod/M, nut/pcs) (kg) 10, 0.6
Unit Price (Screw rod/M, nut/pcs) (USD) 21, 40

SFS4010 6.35mm Quiet Heavy Duty Ball Screw drawing

Ball Screw Features

The ZLV SFS4010 6.35mm Quiet Heavy Duty Ball Screw is characterized by the following features:

  • Low friction loss and high transmission efficiency: Thanks to the rolling motion of many steel balls between the screw shaft and the nut, it delivers higher motion efficiency. It requires only a third of the driving torque compared to traditional sliding screw pairs, hence helping in energy conservation.
  • High precision: This ball screw is produced using the world’s top mechanical equipment, guaranteeing precision thanks to stringent controls on temperature and humidity during grinding, assembly, and inspection.
  • High-speed feed and micro feed possible: With the utilization of ball motion, the ball screw guarantees precise micro feed without any crawling phenomena, as seen in sliding motion.
  • High axial rigidity: It can apply pre-pressure, making axial clearance reach negative values, thereby achieving higher rigidity.
  • No self-lock and has transmission reversibility: This feature ensures smooth operational functionality.

Composition and Classification

The SFS4010 ball screw consists of a screw, nut, steel ball, preload piece, reverser, and dust cover. The ball screw is classified into several types, including:

  1. Self-lubricating ball screws: These do not require a lubrication pipeline system and equipment, reducing oil change and waste oil processing costs.
  2. Quiet ball screws: These have special groove ball separators that suppress the noise generated by the collision of balls, making the operation quieter and smoother.
  3. High-speed ball screws: These are characterized by high acceleration, high rigidity, high-speed feed, low vibration, and low noise. Ideal for high-speed feed in machine tools, high-speed cutting centers, and high-speed longitudinal load cutting centers.
  4. Heavy-load ball screws: These can bear larger axial loads, suitable for full electric design machines, air compressors, semiconductor manufacturing equipment, and forging manufacturing equipment.

Ball Screw Parameters

The following are some significant parameters of the SFS4010 6.35mm Quiet Heavy Duty Ball Screw:

  • Nominal Diameter: The outer diameter of the screw, with this model having a diameter of 40 mm.
  • Lead: This refers to the distance the nut moves linearly when the screw rotates once. The SFS4010 ball screw has a lead of 10 mm. The larger the lead, the faster the linear motion speed at the same rotation speed. The relationship between lead and screw thrust can be calculated using the formula:F = (2*π*T*n) / iwhere F is the screw thrust (N), T is the torque provided by the motor (N·m), n is the transmission efficiency (usually 85%-95% for ball screws), and i is the lead (m).
  • Length: There are two concepts in length – overall length and thread length. The former refers to the total length of the screw, while the latter pertains to the threaded portion’s total length, the maximum theoretical length of the nut’s linear motion, and the nut length plus design margin. The latter also includes the length of the dust cover when compressed, if a dust cover is to be installed.
  • Nut Shape: There are many types of nut forms provided by various manufacturers, which are generally indicated by the first few letters in the model number. Depending on the flange shape, they can be circular flange, single cut flange, double cut flange, and no flange. Depending on the nut length, there are single nut and double nut (note: there is no difference in load and rigidity between a single nut and a double nut).
  • Precision: For ball screws, there are several precision grades including P1, P2, P3, P4, P5, P7, P10. European countries use IT0, IT1, IT2, IT3, IT4, IT5, IT7, IT10.

Overall, the ZLV SFS4010 6.35mm Quiet Heavy Duty Ball Screw, with its top-notch features and detailed specifications, makes it an ideal choice for various industrial applications requiring high precision and efficiency. With customization options, this ball screw can perfectly cater to your specific needs.


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