RU28 Crossed Roller Bearing 10X52X8mm High Precision High Rigidity High Load Capacity Precision Robot Bearing
The RU28 bearing is designed for high-precision rotational motion, featuring crossed cylindrical rollers arranged at right angles to provide exceptional rigidity and load-bearing capacity.
- Outer Diameter: 52 mm
- Bore Diameter: 10 mm
- Width: 8 mm
- Structure: Integrated compact design supporting radial, axial, and moment loads in any direction
- Installation: Simplified by eliminating the need for a mounting flange
| Part Number | RU28 |
|---|---|
| Measurement System | Metric |
| Bearing Type | Roller Bearing |
| Roller Bearing Type | Crossed |
| For Load Direction | Combined Load |
| Construction | Single Row |
| Seal Type | Open |
| Bore Diameter | 10 mm |
| Outer Diameter | 52 mm |
| Width | 8 mm |
| Holes | With Holes |
| Ring Material | Steel |
| Roller Material | Steel |
| Basic Dynamic Load Rating (C) | 2900N |
| Basic Static Load Rating (Co) | 3400N |
| Lubrication | Required |
| Shaft Mount Type | Press Fit |
| Temperature Range | 0 - 230 °F |
| ABEC Rating | ABEC5/7/9 (P5,P4,P2) |
| RoHS | Compliant |
| REACH | Compliant |
| Weight | 0.12kg |
- High Precision: Achieves P4 and P2 precision levels, ensuring exceptional rotational accuracy and stability
- High Rigidity: Features preloaded design to enhance structural stiffness and performance
- High Load Capacity: Capable of supporting bi-directional axial loads, radial loads, and tilting moments, making it suitable for complex loading conditions
- Compact Design: Its small size helps save valuable space in machine tools without compromising performance
The RU28 crossed roller bearings are widely used in fields with stringent requirements for space and performance, thanks to their high rigidity, precision, and compact design.
- Robot Joints and Rotating Components
- AGV/Automation Equipment
- CNC Machines and Machining Centers
- Direct Drive Motors and Hollow Rotary Platforms
- Medical Devices and Optical Equipment
- Radar and Communication Equipment
- Aerospace Testing Equipment
- Scientific Instruments
The RU series bearings feature provided mounting holes, eliminating the need for a presser flange or housing. Additionally, with an integrated inner/outer ring structure and equipped with washers, their performance is minimally impacted by the mounting procedure. This ensures stable rotation accuracy and torque. This model supports both inner-ring rotation and outer-ring rotation, offering high flexibility and adaptability.
| Bearing Number | Inner Diameter (d) | Outer Diameter (D) | Width (B) | Dynamic Load (Cr) | Static Load (Cor) | Weight (Wt ≈) |
|---|---|---|---|---|---|---|
| RJ40 | 8 | 40 | 8 | 3020 | 3780 | 0.06 |
| RU208 | 8 | 44 | 8 | 3020 | 3780 | 0.08 |
| RU28 | 10 | 52 | 8 | 2900 | 3400 | 0.12 |
| RU42 | 20 | 70 | 12 | 7350 | 8350 | 0.29 |
| RU52 | 30 | 80 | 12 | 8610 | 10600 | 0.40 |
| RU66 | 35 | 95 | 15 | 17500 | 22300 | 0.62 |
| RU85 | 55 | 120 | 15 | 20300 | 29500 | 1.00 |
| RU124 | 80 | 165 | 22 | 33100 | 50900 | 2.60 |
| RU178 | 115 | 240 | 28 | 80300 | 13500 | 6.80 |
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