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The CRBTF305A 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: 63 mm
Bore Diameter: 30 mm
Width: 5 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 CRBTF305A bearing excels in applications requiring high performance and reliability, offering superior stiffness and load capacity while simplifying installation.
Technical Specifications
Part Number
CRBTF305A
Measurement System
Metric
Bearing Type
Roller Bearing
Roller Bearing Type
Crossed
For Load Direction
Combined Load
Construction
Single Row
Seal Type
Open
Bore Diameter
30 mm
Outer Diameter
63 mm
Width
5 mm
Holes
With Holes
Ring Material
Steel
Roller Material
Steel
Basic Dynamic Load Rating (C)
5040N
Basic Static Load Rating (Co)
4500N
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
0.20kg
Performance Features
CRBTF305A is a thin-walled cross roller bearing, primarily used in industrial scenarios that demand high precision and lightweight design.
Lightweight Design: Compared to traditional models, its weight is reduced by approximately 62%, with a cross-section height of only 5 mm, making it suitable for compact space applications
High Rigidity: The cross-roller structure can withstand axial, radial, and overturning moment loads, offering 3-4 times higher rigidity than traditional bearings
High Precision: The precision grade can reach P2/P4/P5 levels, making it ideal for precision equipment such as robotic joints, medical instruments, and more
Applications
The CRBTF305A cross roller bearing, with its compact structure, high rigidity, and stable rotational accuracy, is widely used in the following fields:
1. Robotics
Industrial Robots: Used in joints, rotating parts, or robotic arms to support high-precision motion control. Suitable for collaborative robots, AGVs, SCARA robots, etc.
Lightweight Robots: Such as quadruped/hexapod robots, humanoid robots, etc., meeting the demands of compact space and lightweight design.
2. Radar and Communication Equipment
Used in radar antenna rotation mechanisms or displacement platforms, ensuring high stability and low-friction operation. Suitable for mobile radar vehicles, satellite communication, and other scenarios.
3. Precision Stages and Optical Equipment
Supports high-precision linear or rotary motion, used in semiconductor manufacturing equipment, optical alignment platforms, microscope stages, etc.
4. Medical Devices
Applied in surgical robots, medical testing equipment (e.g., CT scanners), and precision instruments, ensuring reliable operation and meeting sterile environment requirements.
5. CNC Machines and Direct Drive Motors
Acts as a core component in CNC rotary tables and direct drive motors (DD motors), improving machining accuracy and dynamic response speed. Suitable for five-axis machining centers, mill-turn composite machines, etc.
6. Other High-Precision Equipment
Harmonic Reducers/Planetary Reducers: Enhances the rigidity and positioning accuracy of transmission systems.
Hollow Rotary Platforms: Used for indexing or rotating stations in automated production lines.
Technical Advantages
The CRBTF305A bearing features an integrated inner and outer ring design with built-in mounting holes, eliminating the need for additional flange support. With a thickness of only 5mm, it is particularly suitable for applications sensitive to space and weight. Its cross-roller arrangement allows it to withstand radial, axial, and moment loads simultaneously, ensuring long-term stable operation.
CRB Series (Integrated Inner/Outer Ring Type) Crossed Roller Bearing
I. Structural Characteristics
Split Outer Ring and Integral Inner Ring Design
The outer ring is divided into two parts, while the inner ring is a single-piece structure, facilitating installation and clearance adjustment
Features an equal cross-section thin-walled design, with both inner and outer ring thickness minimized to suit compact space applications
Rolling Element Arrangement
Cylindrical rollers are arranged in a 90° cross pattern, with spacers maintaining their spacing to prevent friction and locking phenomena
II. Performance Advantages
High Load-Carrying Capacity: Capable of simultaneously withstanding radial, axial loads, and overturning moments, making it suitable for heavy-load applications (e.g., cranes, construction machinery)
High Rigidity and Precision: Offers 3-4 times higher rigidity than traditional bearings, with rotational accuracy reaching P4 and P2 levels, ideal for precision equipment (e.g., CNC machine tools, medical instruments)
Lightweight and Compactness: Extremely thin walls and reduced weight make it suitable for weight-sensitive applications such as robotic joints and manipulators
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...
