Product Information

Steel cage linear bearings are essentially linear bearings with a steel retainer, replacing the traditional resin retainer. They are suitable for demanding operating conditions such as high pressure, high speed, and high temperature.  Commonly found in the LM series, they are widely used precision linear motion components in industry. The following is key information about them:

1. Structure and Materials: The outer sleeve is mostly made of bearing steel, manufactured through quenching and precision grinding; the retainer is commonly made of 304 stainless steel, with 4-6 raceway circuits guiding the steel balls for orderly rolling; the sealing ring can be a 65 manganese steel ring or a nitrile rubber sealing ring, adaptable to dustproof and temperature requirements as needed.

2. Core Advantages: Outstanding high-temperature resistance, capable of withstanding temperatures up to 300℃, far exceeding resin cage bearings; strong wear resistance and stability, with a service life far superior to nylon resin cage bearings under high pressure and high-speed conditions; standardized dimensions and strong interchangeability, ensuring assembly accuracy after grinding the outer diameter of the linear shaft; low rolling friction coefficient of the steel balls, enabling high-precision and smooth motion.

3. Applicable Scenarios: Widely used in precision equipment and special machinery fields with demanding operating conditions, such as electronic equipment, CNC machine tools, industrial robots, food packaging machinery, printing machinery, textile machinery, etc. They can be found in high-temperature environment equipment in steel mills and wafer transfer robotic arms in semiconductor equipment.

Product Specifications