Frequently Asked Questions about This Product
1. Is the logo of Yiheda printed on the outer surface of the linear bearing products?
Our company's linear bearing products do not have the logo of Yiheda printed on the outer surface. Customization is available upon special requirements.
2. What is the order of the anti-rust ability of different materials/surface treatments for linear bearing products?Surface-treated > Non-surface-treated;
For surface-treated ones: Low-temperature black chromium plating > Electroless nickel plating;
For non-surface-treated ones: SUS420 > SUS440C > SUJ2.
① In the long run, the surface treatment film layer may wear out during the product's use or lose its effectiveness over long-term use, resulting in a certain degree of rusting.
② If an economical and practical option that can optimize the anti-rust effect for specific environments is needed, surface treatment may be a more suitable choice.
3. What are the differences among the economy model, the standard model, and the precision model?
Tolerance accuracy range: Precision model > Standard model > Economy model;
The economy model has a large range of accuracy tolerance. The shaft sleeve and the flange are connected by threaded mechanical fastening and adhesive bonding. Its price is relatively lower than that of the standard model. Please choose according to your needs.
4. What are the assembly fit tolerances for linear bearings?
① It is recommended to use linear bearings with standard g6 tolerance guide shafts. The linear bearing and the guide shaft have point contact and non-interference fit. It is normal for there to be a gap between the guide shaft and the bearing, and it will not affect the product's use.
This structure will reduce the frictional resistance of the balls and increase the service life of the workpiece.② It is recommended to install the linear bearing on the fixed seat with H7 tolerance. There is a clearance fit between the linear bearing and the fixed seat.
5. What are the recommended brands of anti-rust oil, lubricating oil, or grease?
It is recommended to use lithium soap-based grease.