Part Number | RE30040UU |
System of Measurement | Metric |
Bearing Type | Roller |
Roller Bearing Type | Crossed |
For Load Direction | Combined |
Construction | Single Row |
Seal Type | Double Seal |
Bore Dia | 300 mm |
Outer Dia | 405 mm |
Width | 40 mm |
Greasing Hole(a) | 6 mm |
Greasing Hole(b) | 3.5 mm |
R(min) | 2.5 mm |
Shoulder Height Ds(max) | 326 mm |
Shoulder Height Dh(min) | 377 mm |
Holes | Without Holes |
Ring Material | Steel |
Roller Material | Steel |
Basic Load Rating C | 212 kN |
Basic Load Rating Co | 409 kN |
Lubrication | Required |
Shaft Mount Type | Press Fit |
Temperature Range | 0 -230 °F |
ABEC Rating | ABEC5(Available in ABEC7/9) |
RoHS | Compliant |
REACH | Compliant |
Weight | 17.2 Kg |

RE30040UU
Design Features of RE30040UU Bearing
RE30040UU features an inner ring and outer ring with an integrated, compact design, providing high rigidity and precision. RE30040UU outer dia is 405 mm. Its bore dia is 300 mm. Its crossed roller arrangement allows for handling radial, axial, and moment loads while ensuring smooth, accurate rotational movement.
What Benefits Can RE30040UU Bearing Provide?
- High Load Capacity: Its crossed roller design allows it to handle radial, axial, and moment loads simultaneously, offering robust performance in demanding applications.
- Compact and Rigid Design: The integrated structure provides high rigidity and precision while maintaining a compact size, making it ideal for space-constrained environments.
- Improved Accuracy: The bearing ensures smooth and accurate rotational movement, which is essential for applications requiring precise positioning.
- Durability and Longevity: With reduced friction and optimized load distribution, the RE Series Cross Roller Bearing enhances machinery efficiency and reduces maintenance needs.
- Versatility: It is suitable for various industries, such as robotics, medical equipment, and industrial machinery, where both precision and stability are crucial.
What Can RE30040UU Bearing Be Used for?
- Robotics: For robotic arms and joints, providing precise movement and stability under complex loading conditions.
- Medical Equipment: In surgical robots, imaging systems, and other medical devices where high accuracy and smooth operation are crucial.
- Aerospace: Used in satellites, gimbals, and flight control systems that require precise positioning and the ability to handle combined loads.
- Machine Tools: In CNC machines, lathes, and milling machines for accurate rotation and high load-handling capabilities.
- Semiconductor Manufacturing: Employed in wafer handling and positioning equipment where precision and smooth movement are essential.
- Optical Instruments: In telescopes, cameras, and other optical devices where stable, precise rotation is required.