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{"title":"Shaft 80 Mm BNAT805 Crossed Roller Robot Bearing 80X91X5mm","imgUrl":"https:\/\/img.chinax.com\/nimg\/01\/3e\/4af997bfd19401041daa301011fc-200x200-1\/shaft_80_mm_bnat805_crossed_roller_robot_bearing_80x91x5mm.jpg","attrs":{"Shaft Bore":"80mm","Bearing Name":"BNAT805 Crossed Roller Bearing","Brand Name":"CNBTZC or OEM","Model Number":"BNAT805"}}
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Crossed Roller Bearing RA7008UUCC0 70X86X8mm Block Linear Guide Slide RA7008C Cross-Roller Ring
Crossed Roller Bearing RA7008UUCC0 70X86X8mm Block Linear Guide Slide RA7008C Cross-Roller Ring - Thin Wall Crossed Roller Bearing Compact Hand Robot Joint Bearing
The RA7008C/RA7008UUCC0 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
Outer Diameter: 86 mm
Bore Diameter: 70 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
The RA7008C/RA7008UUCC0 bearing excels in applications requiring high performance and reliability, offering superior stiffness and load capacity while simplifying installation.
Technical Specifications
Part Number
RA7008UUCC0
Measurement System
Metric
Bearing Type
Roller Bearing
Roller Bearing Type
Crossed
For Load Direction
Combined Load
Construction
Single Row
Seal Type
Open/sealed
Bore Diameter
70 mm
Outer Diameter
86 mm
Width
8 mm
Holes
With Holes
Ring Material
Steel
Roller Material
Steel
Basic Dynamic Load Rating (C)
5980N
Basic Static Load Rating (Co)
9800N
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
0.10kg
Performance Features
RA7008UUCC0 is a thin-walled cross roller bearing, primarily used in industrial scenarios that demand high precision and lightweight design.
High Rigidity - Provides 3-4 times more rigidity than traditional bearings, supporting loads in all directions (radial, axial, and moment loads)
Compact Design - Extremely thin profile (only 8mm thick), making it perfect for tight spaces
High Precision - Offers micron-level accuracy with pre-load adjustment to ensure stable rotation
Versatile Load Capacity - Can handle radial, axial, and moment loads simultaneously thanks to its crossed roller design where rollers are arranged perpendicularly and separated by spacers
Low Friction and Long Life - Reduced friction between rollers extends maintenance intervals and increases durability
Applications
Industrial Robots and Manipulators
Robot Joints and Rotating Arms - The thin-wall design makes it ideal for space-constrained areas such as robot joints and rotating arms. Its single-split outer ring structure allows for outer ring rotation, making it suitable for applications requiring high rotational accuracy
Rotating Parts of Manipulators - The crossed roller arrangement can withstand loads from multiple directions, meeting the demands of frequent starts/stops and high loads in manipulators
Precision Machining and Measurement Equipment
Rotary Tables of Machining Centers - High rigidity (3-4 times higher than traditional bearings) and low-friction characteristics ensure smooth operation of the rotary table
Measurement Instruments and Inspection Equipment - Micron-level rotational accuracy (e.g., P5 grade precision) makes it suitable for high-precision inspection instruments and metrology tools
Medical and Semiconductor Equipment
Medical Robots and Surgical Equipment - Low torque and high cleanliness meet the requirements of medical environments and are suitable for minimally invasive surgical robots
Semiconductor Manufacturing Equipment - High-temperature resistant materials and non-magnetic designs meet the cleanliness and stability requirements of semiconductor equipment
Aerospace and Automation Systems
Direct Drive Torque Motors - Lightweight design and high rigidity make it suitable for precision transmission systems in aerospace
Automated Production Lines - Long service life and high reliability support continuous high-speed operation in automated production lines
Vacuum/High-Temperature Environments - Special lubrication solutions adapt to extreme working conditions
RA-C Series Crossed Roller Bearing
The RA C Series Cross Roller Bearings are compact bearings specifically designed for high-precision and high-rigidity applications.
Structural Features
Integrated Inner and Outer Rings - Adopts an integrated inner and outer ring structure with outer ring crack design, maintaining high rigidity while allowing outer ring rotation
Ultra-Thin Section and Compact Size - Achieves ultra-thin section, ideal for applications with limited installation space
Composite Load Capacity - Rollers arranged in 90° cross pattern allow single bearing to handle radial loads, axial loads, and overturning moments
Application Areas
Industrial Robots - Used in robotic arm joints and rotating components for high-speed motion and precision
CNC Machines and Machining Centers - Suitable for rotary tables and precision indexing tables
Medical Equipment and Precision Instruments - Preferred choice for surgical robots and optical instruments
Advantages and Performance
High Rigidity and Load Capacity - Integrated structure enhances anti-overturning capability for complex loads
Low Friction and Long Service Life - Rollers separated by spacers prevent tilting and friction, reducing rotational torque
Preload Adjustment Flexibility - Supports preload adjustment to optimize rotational accuracy and stability
Bearing Dimensions and Specifications
Bearing Number
Inner Diameter d
Outer Diameter D
Width B
Chamfer r(min)
Dynamic Cr
Static Cor
Weight Wt ≈
RJ40
8
40
8
0.3
3020
3780
0.06
RU208
8
44
8
0.3
3020
3780
0.08
RU28
10
52
8
0.3
2900
3400
0.12
RU42
20
70
12
0.6
7350
8350
0.29
RU52
30
80
12
0.6
8610
10600
0.40
RU66
35
95
15
0.6
17500
22300
0.62
RU85
55
120
15
0.6
20300
29500
1.00
RU124
80
165
22
1
33100
50900
2.60
RU178
115
240
28
1.5
80300
13500
6.80
CRBTF105A
10
43
5
0.15
2800
2500
0.09
CRBTF305A
30
63
5
0.15
5040
4500
1.20
CRBT305-41A
30
41
5
0.15
3640
3250
0.08
RA5008C
50
66
8
0.5
5100
7190
0.08
RA6008C
60
76
8
0.5
5680
8680
0.09
RA7008C
70
86
8
0.5
5980
9800
0.10
RA8008C
80
96
8
0.5
6370
11300
0.11
RA9008C
90
106
8
0.5
6760
12400
0.12
RA10008C
100
116
8
0.5
7150
13900
0.14
If you need more detailed information, feel free to ask!
Beining Intelligent Technology
Precision Bearings for High-Performance Industries
At Beining Intelligent Technology, we design and manufacture precision bearings for high-demand applications in:
CNC Machine Tool Spindles
Robotics
Motors
With a focus on quality, automation, and...
Beining Intelligent Technology
Precision Bearings for High-Performance Industries
At Beining Intelligent Technology, we design and manufacture precision bearings for high-demand applications in:
CNC Machine Tool Spindles
Robotics
Motors
With a focus on quality, automation, and...
