7211 BECBJ
Single Row Angular Contact Ball Bearings
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Part No.
Part No.
7211 BECBJ
Basic Information
Bearing type
Ball
System of measurement
Metric
Construction
Single Row
Weight
0.62 kg
Tolerance class
P6 (ABEC-3)
Seal type
Open
For load direction
Angular Contact
Main Dimensions
Bore diameter
55 mm
Bore diameter tolerance
-0.012mm to 0
Outside diameter
100 mm
Outside diameter tolerance
-0.013mm to 0
Width
21 mm
Width tolerance
-0.05mm to 0
Chamfer dimension
1.5 mm
Contact angle
40 °
Distance from side face to load point
43 mm
Inner Ring Dimensions
Inner ring large-side shoulder diameter
72.45 mm
Inner ring small-side shoulder diameter
63.62 mm
Outer Ring Dimensions
Shoulder diameter outer ring
83.3 mm
Performance
Temperature range
-30° to 110 °C
Radial dynamic load rating
11025 lbf
Radial static load rating
9000 lbf
Limiting speed
8 X 1000 rpm
Lubrication
Lubricated
Materials
Ring material
Chrome Steel
Ball material
Chrome Steel
Cage material
Stainless Steel
Environment & Compliance
REACH
Compliant
ROHS
Compliant
Technical Drawings
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In Stock
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7211 BECBJ Bearing Product Overview & Core Advantages
The 7211 BECBJ is a single row angular contact ball bearing engineered for high-precision applications requiring superior performance under combined loads. This metric bearing is distinguished by its ability to accommodate significant axial loads in one direction in addition to radial loads, thanks to its defined 40° contact angle. Manufactured to a P6 (ABEC-3) tolerance class, it ensures high running accuracy and reliability. Its compact design, featuring a 55 mm bore and 100 mm outside diameter, makes it an ideal solution for space-constrained, high-speed machinery demanding high rigidity and operational stability.
7211 BECBJ Bearing Model Code Explained, Specifications & Naming Convention
| Suffix Code | Technical Meaning | Significance & Advantage |
|---|---|---|
| BE | Increased internal clearance and contact angle of 40° | Optimized for higher axial load capacity and thermal management in high-speed applications. |
| CB | Specific internal design for normal clearance and preload | Provides a balanced configuration for general applications, ensuring smooth operation and controlled rigidity. |
| J | Stainless Steel Pressed Cage | Contributes to high-speed performance, offering low friction, high strength, and excellent corrosion resistance. |
7211 BECBJ Bearing Structural Features & Performance Benefits
- High Rigidity and Load Capacity: The single row angular contact design, combined with a 40° contact angle and a robust stainless steel cage, provides excellent resistance to deformation under combined radial and axial loads. The defined shoulder diameters on both rings ensure secure positioning and support.
- High-Speed Performance: The lightweight and durable stainless steel cage (suffix J) is engineered for stability at high rotational speeds, supporting a limiting speed of 8,000 rpm. The open design facilitates efficient lubrication management.
- Precision Engineering: Manufactured to P6 (ABEC-3) tolerance standards with tight dimensional tolerances on the bore, outside diameter, and width, this bearing guarantees high running accuracy and consistent performance in precision machinery.
- Durability and Compliance: Constructed from chrome steel for both rings and balls, the bearing offers high fatigue life. It is pre-lubricated for immediate use and is compliant with RoHS and REACH environmental standards.
7211 BECBJ Bearing Typical Application Areas
This bearing is ideally suited for applications requiring high precision, speed, and reliable axial load handling. Key industries and equipment include:
- Machine Tool Spindles
- High-Speed Pumps and Compressors
- Precision Gearboxes
- Agricultural Machinery
- Material Handling Systems
