THK’s technical strength has been accumulated over the years. To this day, these core technologies continue to nurture new industry standards to meet more and more extensive needs. In the linear motion system, the most frequently used and economical “deep groove ball bearing” rotation concept in the rotary axis is applied. The ball is used as the revolving body, and the rolling surface is provided with an R close to the outer diameter of the ball. The shape communication makes the rolling surface and the ball change from “point contact” to “surface contact”. Today we will talk about the advantages of THK self-lubricating rail.
1. Lubrication-free system
There are wool felts in the plastic covers at the front and rear 2 ends of the THK self-lubricating block, which has been filled with lubricating oil before leaving the factory. When the slider is running on the track, the lubricating oil will automatically form a thin oil film on the surface of the sliding rail, long-lasting type Automatic lubrication, no need to use manual pumping oil or another pipe oil injection, eliminating the cost of frequent maintenance or additional equipment for oiling equipment, and through experimental data, it is known that the life of the self-lubricating slider is longer than that of the traditional slider After a long period of time, the amount of lubricating oil will also be saved, which can save considerable lubricating oil costs in one year. The liquid lubricating oil for self-lubricating blocks is also cleaner and easier to maintain than solid grease, and there is no risk of waste oil disposal costs and oil leakage to pollute the environment. It is really the best environmentally friendly product.
2. Four rows of beads, high rigidity and equal load design
The same four-row ball design as THK’s HSR series. The four-row grooved steel balls make 4-point 90-degree contact between the slider and the slide rail, which can balance and offset the forces from the slider in all directions, regardless of the slide rail. It is installed at any angle, and the load capacity in all directions is equal. It is widely suitable for all types of machines. Compared with the Gothic two-row groove design, the four-row ball has the advantages of higher rigidity, accuracy and life, especially the X-type fourth The row bead design has the ability to automatically adjust the center, even if there is a big deviation of the desktop assembly track or the error occurs in the device, it can be eliminated by the system itself, so a light and accurate straight movement can be obtained.
3. Base shaft system
THK self-lubricating block adopts the most advanced 3-sided simultaneous grinding grinding method. This grinding method ensures that each slide rail has the best quality with high precision. Each slide rail is above the SP level, and the error of one meter is 2μ Inside, so THK can easily supply interchangeable and high-precision slide rails.
4. Both sides of the slide rail are reference planes
Compared with the slide rail of the two-sided grinding method with only one reference surface, both sides of the THK slide rail can be used as reference surfaces at the same time, making it easier to assemble.
5. Unified lock type and lower lock type slider
Generally, traditional sliders are divided into upper and lower lock types. THK combines the two to develop a common slider for upper and lower locks, which can also greatly reduce inventory costs.
6. Don’t drop the steel ball
With excellent steel ball retainer design, the steel ball will never be dropped when the slider is separated from the slide rail, no false shaft is required, and assembly and maintenance are more convenient.