The top bearing of the RLR/RGB/RGD is flat. In that case, is the load still applied along a line?
👤 nuoyan · 📅 2025-09-04 08:43 · 👁 397 · 💬 1
The top bearing of the RLR/RGB/RGD is flat. In that case, is the load still applied along a line?
💬 1 replies
👤 ams17306304033 · 2025-09-05 16:00
Hello! You can find detailed information on our company’s website at www.ams88.com. For now, I’ll provide a brief overview here. The basic structures of all linear motions are broadly classified into three types. You mentioned line contact and also surface contact. There is also point contact. Through these three methods, friction is generated between the balls or bearings on the linear guide and the block, thereby achieving linear motion. Many people believe that surface contact is better. Surface contact has many advantages, but it also has drawbacks. With a large contact area, linear motion without lateral play can be achieved using a single rail and a single block. The larger the contact surface, the greater the stability. Before the precision of linear guideways was improved, the guideways and beds of precision machine tools were also manufactured using this method. However, the drawback of surface contact is its high coefficient of friction, which necessitates lubrication. Furthermore, high-speed operation is not advisable due to overheating. When designing linear motion systems, several factors must be considered, including positioning accuracy, high-speed operation, lubrication, load capacity, noise levels, and the operating environment. To address the limitations of surface contact, we employ line contact or point contact to achieve linear motion. In the case of line contact, a single guide rail is insufficient; two guide rails, one on the left and one on the right, must be used. This can resolve the load issue. The line-contact areas have a hardness of HRC 50 or higher, making them resistant to wear. Moreover, line contact results in low noise, eliminates the need for lubrication, and allows for high-speed operation. Even if contaminants are present, linear motion remains unaffected. The above is a brief description of the video. If you have any questions, please feel free to leave a comment here. Please recommend our website to your friends! Thank you.
