P5 P4 P2 RB3010 Crossed Roller Slewing Bearing THK 30 X 55 X 10 Mm RB3010UUCC0

1. Core Structure of Cross Roller Bearings

• Outer Ring & Inner Ring: Typically made of chromium bearing steel for high hardness and wear resistance. One ring has a full raceway, while the other has a split structure (fixed with bolts) for easy assembly.
• Cylindrical Rollers: Arranged alternately at 90° between the inner and outer rings. They directly contact the raceways, reducing deformation under load and improving rigidity.
• Spacers/Retainers: Separate individual rollers to prevent friction and collision, ensuring smooth rotation and extending service life.

2. Key Performance Characteristics

• High Rigidity: The cross roller arrangement and tight fit between rollers and raceways minimize elastic deformation, making them ideal for precision positioning.
• Multi-Load Capacity: Can withstand radial loads, axial loads (both directions), and moment loads (tilting moments) in a single bearing, simplifying mechanical design.
• Low Friction & High Precision: Direct roller-raceway contact reduces sliding friction, while strict manufacturing tolerances (often up to P5 or P4 class) ensure high rotational accuracy.
• Compact Size: Integrates multi-load functionality into a single unit, reducing the overall volume of equipment compared to combinations of multiple bearings.

3. Typical Applications

Industrial Machinery: Robot joints (e.g., robotic arms), precision machine tools (spindles, turntables), and indexing tables.

• Optical & Measuring Equipment: Optical inspection machines, laser measuring instruments, and semiconductor lithography equipment.
• Medical Devices: CT scanners, surgical robots, and precision diagnostic equipment.
• Aerospace & Defense: Satellite antennas, radar turntables, and guidance system components.
• Transportation: High-precision rotating parts in electric vehicles (e.g., steering systems) and railway inspection equipment.

4. Below list for RB Series Crossed Roller Bearings:

Wuxi Handa Bearing Co., Ltd. was founded in 1998, about 20 years of development, now days has become into a group corporation with several subsidiaries. Our factory covers an area of 30,000 square meters, construction area of 19,000 square meters, along with advanced production line and modern test management. At present, the quality of our bearings has reached advanced level in the international market.

Our business philosophy is Quality First with Faith Base. We mainly produce Taper roller bearing in Metric and Inch sizes, Deep groove ball bearing, Sphericial roller bearing,  Cylindrical roller bearing, Angular contact ball bearing, Pillow block bearing, Rolling mill bearing and Multi-row composite bearing. Our products are exported to Southeast Asia, Europe, the Americas, the Middle East etc.

Our company with high-quality, reasonable price, good reputation won the high praise from customers at home and abroad. In 2002 we obtained ISO9001:2000 international quality system certification. Meanwhile, we have been absorbed in product quality and advanced technology aiming to provide excellently precise products all these years.

Let's Win Together !