Crossed Roller Bearings
Crossed roller bearings have become increasingly popular in the industrial market due to their high precision, versatility, and ability to handle both radial and thrust loads. Crossed roller bearings are made up of two cylindrical rollers that intersect in a V-shape and sit in the housing. Crossed roller bearings can be used for precision measurements in optical and robotic systems, instrumentation, medical equipment, tool spindles, table drives, and industrial automation.
Crossed roller bearings are available in a range of sizes and materials, and can be configured with various roller arrangements and cage designs. The rollers are precision ground and assembled in correct angle with each other, ensuring a low contact angle (typically 30 degrees or less) and high axial rigidity. The precision ground rollers are made from high strength materials such as chrome or hardened steel.
The geometry and design of crossed roller bearings make them suitable for applications that require both high torque and high linear speed. They can be used for high precision applications in machine tools, robotics, medical equipment, and other precision equipment. The smooth running characteristics of crossed roller bearings make them ideal for applications that require limited maintenance.
Crossed roller bearings are available in two configurations: external and internal. External crossed roller bearings are commonly referred to as “track roller bearings,” and internal crossed roller bearings are referred to as “gimbal bearings.” A key difference between the two configurations is that the inner roller of an internal crossed roller bearing is locked in place, while the outer roller is free to move. The result is higher accuracy and higher torque capacity in a smaller overall package.
Crossed roller bearings are also designed with low noise and low friction characteristics, making them suitable for applications where noise and mechanical drag are important factors. Additionally, they are easy to mount and adjust, making them ideal for applications that require frequent adjustment or maintenance.
Crossed roller bearings maintain constant contact between their rollers, even under extreme loads and misalignments, allowing them to handle heavy loads and operate with high accuracy and precision. Their robust construction and long-lasting life make them suitable for a wide range of industrial applications.
Crossed roller bearings are often used in rotating applications, or as combination thrust-rotating axles. They are extremely reliable and can provide years of dependable service in the most demanding conditions.
Crossed roller bearings can be used in many industries, and the range of applications is expanding. They are used for precision measurement in optical systems, robotics and automation, instrumentation, medical equipment, tool spindles, table drives, and industrial automation. Their low friction, high precision, and robustness make them ideal for a variety of applications.
