Payment Terms | L/C,T/T |
Supply Ability | 100000pcs per month |
Delivery Time | 2-4 weeks |
Packaging Details | plastic bag,box,carton,pallet |
Bearing Name | RU28 Crossed Roller Bearing |
Shaft Bore | 10mm |
Replaceable With | IKO,THK |
Customized | Yes |
Brand Name | CNBTZC or OEM |
Model Number | RU28 |
Certification | IATF16949:2016 |
Place of Origin | China |
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Product Specification
Payment Terms | L/C,T/T | Supply Ability | 100000pcs per month |
Delivery Time | 2-4 weeks | Packaging Details | plastic bag,box,carton,pallet |
Bearing Name | RU28 Crossed Roller Bearing | Shaft Bore | 10mm |
Replaceable With | IKO,THK | Customized | Yes |
Brand Name | CNBTZC or OEM | Model Number | RU28 |
Certification | IATF16949:2016 | Place of Origin | China |
Shaft Diameter 10mm RU28 Crossed Roller Bearing 10X52X8mm 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. Key features include:
The RU28 bearing excels in applications requiring high performance and reliability, offering superior stiffness and load capacity while simplifying installation.
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 |
What's the Performance Features of RU28 Crossed Roller Bearing?
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.
What's the Applications of the RU28 Crossed Roller Bearing?
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. Specific applications include:
1. Industrial Automation and Robotics
Robot Joints and Rotating Components
The RU28 bearing, with its compact structure and low friction characteristics, is widely used in industrial robot joints (such as six-axis robotic arms), collaborative robots, and exoskeleton robots, ensuring precise motion control.
AGV/Automation Equipment
Used in the steering systems of AGVs and precision turntables in automated production lines, supporting high repeatability and positioning accuracy.
CNC Machines and Machining Centers
As a core component for CNC rotary tables and indexing tables in four- and five-axis machines, it enables high-precision cutting and complex surface machining.
Direct Drive Motors and Hollow Rotary Platforms
Integrated into direct drive motors (DD motors) and hollow rotary platforms, meeting the demands for high-speed and high-rigidity transmission.
Medical Devices and Optical Equipment
Applied in surgical robots, CT scanner rotating components, and optical alignment platforms, ensuring micron-level operational precision.
Radar and Communication Equipment
Used in radar antenna bases and satellite communication equipment's precision pointing mechanisms, adapting to high-frequency rotation and complex loads.
Aerospace Testing Equipment
Serves flight simulators, inertial navigation system testing devices, and can withstand extreme conditions.
Scientific Instruments
Embedded in precision measuring instruments and semiconductor manufacturing equipment (such as wafer stages in photolithography machines), supporting nanometer-level positioning.
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 | Dimensions(mm) | Mounting Size | Basic Load Rating(N) | Inner Ring Mounting Hole | Outer Ring Mounting Hole | Reference Weight(Kg) | |||||||
Inner Diameter | Outer Diameter | Width | Chamfer | Dynamic | Static | Hole Center | Hole size | Hole Center | Hole size | ||||
d | D | B | r(min) | da | Da | Cr | Cor | dn | do | Dn | Do | Wt ≈ | |
RJ40 | 8 | 40 | 8 | 0.3 | 26 | 28 | 3020 | 3780 | 20 | 4-M3 | 34 | 6-ф2.8-ф4.6/凵2.8 | 0.06 |
RU208 | 8 | 44 | 8 | 0.3 | 26 | 32 | 3020 | 3780 | 16 | 4-M3 | 38 | 4-ф3-ф 5/凵3 | 0.08 |
RU28 | 10 | 52 | 8 | 0.3 | 24 | 29.5 | 2900 | 3400 | 16 | 4-M3 | 42 | 6-ф3.4-ф6.5/凵3.3 | 0.12 |
RU42 | 20 | 70 | 12 | 0.6 | 37 | 47 | 7350 | 8350 | 28 | 6-M3 | 57 | 6-ф3.4-ф6.5/凵3.3 | 0.29 |
RU52 | 30 | 80 | 12 | 0.6 | 46.5 | 58.5 | 8610 | 10600 | 35 | 6-M3 | 67 | 6-ф3.4-ф6.5/凵3.3 | 0.40 |
RU66 | 35 | 95 | 15 | 0.6 | 59 | 74 | 17500 | 22300 | 45 | 8-M4 | 83 | 8-Φ4.5-Φ 8/凵4.3 | 0.62 |
RU85 | 55 | 120 | 15 | 0.6 | 79 | 93 | 20300 | 29500 | 65 | 8-M5 | 105 | 8-Φ5.5-Φ9.5/凵5.4 | 1.00 |
RU124 | 80 | 165 | 22 | 1 | 114 | 134 | 33100 | 50900 | 97 | 10-M5 | 148 | 10-Φ5.5-Φ9.5/凵5.4 | 2.60 |
RU178 | 115 | 240 | 28 | 1.5 | 161 | 195 | 80300 | 13500 | 139 | 12-M8 | 217 | 12-Φ8.6-Φ14/凵8.6 | 6.80 |
CRBTF105A | 10 | 43 | 5 | 0.15 | 12.5 | 38.5 | 2800 | 2500 | 16 | 6-M2.5 | 35 | 6-ф2.8-ф4.6/凵2.8 | 0.09 |
CRBTF305A | 30 | 63 | 5 | 0.15 | 33.5 | 58.5 | 5040 | 4500 | 36 | 8-M2.5 | 55 | 8-ф2.8-ф4.6/凵2.8 | 1.20 |
CRBT305-41A | 30 | 41 | 5 | 0.15 | 33.5 | 36.5 | 3640 | 3250 | - | 0.08 | |||
RA5008C | 50 | 66 | 8 | 0.5 | 53.5 | 60.5 | 5100 | 7190 | - | 0.08 | |||
RA6008C | 60 | 76 | 8 | 0.5 | 63.5 | 70.5 | 5680 | 8680 | - | 0.09 | |||
RA7008C | 70 | 86 | 8 | 0.5 | 73.5 | 80.5 | 5980 | 9800 | - | 0.10 | |||
RA8008C | 80 | 96 | 8 | 0.5 | 83.5 | 90.5 | 6370 | 11300 | - | 0.11 | |||
RA9008C | 90 | 106 | 8 | 0.5 | 93.5 | 100.5 | 6760 | 12400 | - | 0.12 | |||
RA10008C | 100 | 116 | 8 | 0.5 | 103.5 | 110.5 | 7150 | 13900 | - | 0.14 | |||
BNAT105 | 10 | 21 | 5 | 0.2 | 12.5 | 18.5 | 1100 | 800 | - | 0.009 | |||
BNAT205 | 20 | 31 | 5 | 0.2 | 22.5 | 28.5 | 1500 | 1400 | - | 0.015 | |||
BNAT305 | 30 | 41 | 5 | 0.2 | 32.5 | 38.5 | 1900 | 2100 | - | 0.021 | |||
BNAT408 | 40 | 56 | 8 | 0.2 | 42.5 | 53.5 | 4200 | 5800 | - | 0.027 | |||
BNAT505 | 50 | 61 | 5 | 0.2 | 52.5 | 58.5 | 2400 | 3400 | - | 0.032 | |||
BNAT555 | 55 | 66 | 5 | 0.2 | 57.5 | 63.5 | 2500 | 3700 | - | 0.035 | |||
BNAT805 | 80 | 91 | 5 | 0.2 | 82.5 | 88.5 | 3000 | 5400 | - | 0.05 | |||
BNAT905 | 90 | 101 | 5 | 0.2 | 92.5 | 98.5 | 3100 | 6000 | - | 0.056 |
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Company Details
Business Type:
Manufacturer,Distributor/Wholesaler,Exporter,Seller
Year Established:
2013
Total Annual:
20000000-+
Employee Number:
156~200
Ecer Certification:
Verified Supplier
Own 2 design + production centers; Covers:18000㎡; Boasts 12 engineers + 60 producing lines; Annual production:140,000,000 pcs. We pride ourselves on an annual production capacity of 140 million pieces, making us a trusted partner for industries that demand high-quality be... Own 2 design + production centers; Covers:18000㎡; Boasts 12 engineers + 60 producing lines; Annual production:140,000,000 pcs. We pride ourselves on an annual production capacity of 140 million pieces, making us a trusted partner for industries that demand high-quality be...
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