How to prolong the service life of linear guide rail?

In the daily use of transmission parts, for the fluid lubrication of sliding guide rail surface, the movement accuracy error caused by the floating of oil film is inevitable. In most cases, fluid lubrication is limited to the boundary area, and direct friction caused by metal contact is inevitable, in which a large amount of energy is wasted by friction loss. On the contrary, because of the low friction energy consumption and the corresponding reduction of friction loss on the rolling surface, the linear guide rail system can be in a high-precision state for a long time. At the same time, due to the small amount of lubricating oil, grease lubrication is enough in most cases, which makes it very easy to design and maintain the lubrication system of machine tools.

There is a slight or negative gap between the slider of the rolling linear guide rail and the guide rail, so the overall rigidity and movement accuracy of the guide rail can be greatly improved. The E2 self-lubricating module product with innovative design of linear guide rail combines the concept of removable type, which makes the linear guide rail extend its maintenance cycle. E2 self-lubricating module is characterized by cost saving, cleanness and environmental protection, flexible installation, convenient disassembly and assembly and easy maintenance. The transparent oil tank design can check the oil quantity at any time, and the corresponding lubricating oil can be selected. It can be used in special environment such as dust, bad weather and water environment.

In order to improve the motion accuracy and accuracy maintenance, linear guideway requires enough negative numbers, which are two contradictory aspects. When the working time is too long, the steel balls begin to wear, and the preload acting on the steel balls begins to weaken, which leads to the decrease of the motion accuracy of the working parts of the machine tool. If you want to keep the initial accuracy of the linear guide, you must replace the guide bracket or even the guide. If the guide rail system has been preloaded. The accuracy of the system has been lost,  and the only way is to replace the linear slider and guide rail.

Causes and solutions of damage to slideblock of linear guide rail

First of all, after the slider has been walking for a period of time, it is found that the end cover and end dustproof are deformed or broken, which may be caused by the wrong installation method, which may cause only unilateral stress between the slider and the track, or by external force. Recommendations:

1. The internal defects of the slide block, the solution: change the dustproof system, improve the lubricating oil, increase the amount of lubricating oil and reduce the lubricating time interval.

2. Inappropriate working parameters, solutions: verification of technical calculation, optimization of product configuration and adjustment of installation angle.

3. Wrong load judgment and incorrect number of configuration sliders. Solution: Optimization of product configuration.

Secondly, after using it for a period of time, it is found that the track of the guide rail is indented and the sliding block steel ball is broken, which is mainly caused by overload and the steel ball is separated from the track, causing the steel ball to break and the track to be damaged one after another. Preventive advice:

1. At the end of rated life, solution: replace with new one.

2. Overload, the solution: use a large slider, increase the number of sliders, reduce the external load, improve the installation method, and reduce the unilateral stress.

3. Insufficient lubrication. Solutions: change lubricating oil, increase lubricating oil quantity and reduce lubricating distance.

4. Foreign matter enters the slider. Solution: Improve sealing fittings (double dustproof, lower dustproof, etc.).

What are the different types of ball screws?

The ball screw is composed of a screw rod, a nut, a steel ball, a pre-compression piece, a steering gear, and an anti-skid piece. Its function is to convert rotary motion into linear motion, and the important significance of its development is to transform the bearing from sliding motion into rolling motion. Ball screws are widely used in various industrial equipment and precision instruments because of their low frictional resistance. Transmission components often used in machine tools and precision machinery, whose main function is to convert rotary motion into linear motion, or the rotor into axial repetitive force, and have the characteristics of high precision, reversibility, and high efficiency. Now we mainly introduce the type of ball screws .

1. Heavy-duty ball screw: which can bear large axial load, is suitable for all-electric design machines, air compressors, semiconductor manufacturing devices and forging manufacturing devices, etc.
2. High-speed ball screw : with high-speed feeding, high acceleration, high rigidity, low vibration and low noise. Use and machine tool fast feed, abrasive high-speed cutting center machine and high-speed longitudinal load cutting center, etc.
3. The cooled ball screw:  forced into a whole in the nut, so that the heat source of the low ball screw during high-speed operation is generated by thermal expansion. To achieve high speed and high precision, use high-speed machine tools and high-speed longitudinal load machining machine tools.
4. Nut-rotating ball screw: which integrates ball nut and ball screw to perform linear motion of rotation and linear transmission, is used in semiconductor machinery, industrial robots, woodworking machines, laser processing machines and conveying devices, etc.
5. Self-lubricating ball screw: Self-lubricating ball screw with detachable oil removal device does not need to lubricate pipeline system and equipment, and the cost of oil replacement and waste oil treatment, and greatly reduces the cost of oil products.
6. Silent ball screw:  Ball spacer rings with special grooves are arranged between the balls, which can restrain the noise caused by the collision between the balls and the wear caused by the balls, and make the ball screw move quieter and smoother.

7. There are other grades of ball screws and conversion grade ball screws. There are rollers on the surface of the screw to roll threads. After heat treatment and polishing, it can be assembled into a simple and reasonable price, and it can be shipped quickly.

What should you know about TBI DFU double ball screw nut?

Taiwan TBI ball screw DFU series nut and single nut SFU mounting hole are the same six-hole mounting nuts, but DFU series is a double nut. TBI ball screw DFU nut ball screw transmission means that a considerable number of rolling bodies (balls) are placed between the ball screw and the ball nut rolling raceway as intermediate transmission bodies, and with the aid of the return channel, the spiral movement that the balls can repeatedly circulate in a closed loop is formed. The relative movement between the screw rod and the nut transforms the sliding contact into rolling contact with the help of the ball chain.

TBI ball screw originated in Taiwan Province

Precision grade C7 -C5 -C3

The diameter of DFU lead screw is 16mm- 100mm

TBI lead screw DFU series pitch (lead)-4mm, 5mm, 6mm, 8mm, 10mm and 20mm

We can customized according to requirements for DFU screw length .

We can customized according to requirements for effective lead of TBI screw rod .