1211 C/3
1200 Series Self Aligning Ball Bearings
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Part No.
Part No.
1211 C/3
Basic Information
Bearing type
Ball
System of measurement
Metric
Construction
Double Row
Weight
0.71 kg
Seal type
Open
For load direction
Radial
Main Dimensions
Bore diameter
55 mm
Bore diameter tolerance
-0.015mm to 0
Bore type
Cylindrical
Outside diameter
100 mm
Outside diameter tolerance
-0.015mm to 0
Width
21 mm
Width tolerance
-0.15mm to 0
Chamfer dimension
1.5 mm
Inner Ring Dimensions
Shoulder diameter inner ring
70.3 mm
Outer Ring Dimensions
Shoulder diameter outer ring
86.5 mm
Performance
Temperature range
-30° to 110 °C
Radial dynamic load rating
6210 lbf
Radial static load rating
2385 lbf
Limiting speed
9 X 1000 rpm
Lubrication
Lubricated
Radial internal clearance
CN
Materials
Ring material
Chrome Steel
Ball material
Chrome Steel
Cage material
Nylon
Environment & Compliance
REACH
Compliant
ROHS
Compliant
Technical Drawings
No drawings available at the moment, will be launched soon
Price:
$ 33.41
/ each
In Stock
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1211 C/3 Bearing Product Overview & Core Advantages
The 1211 C/3 is a double row angular contact ball bearing designed for applications requiring high rigidity and precise operation. This precision bearing excels at simultaneously handling combined loads, including significant radial loads and bidirectional axial loads. Its compact design, featuring two rows of balls, provides a robust and space-efficient solution for high-reliability machinery. Manufactured with chrome steel components and a nylon cage, it offers excellent performance within a defined temperature range and comes pre-lubricated for immediate use.
1211 C/3 Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning | Significance & Advantage |
|---|---|---|
| 1211 | Standard bore diameter code (55 mm) and dimension series. | Defines the core bearing dimensions for interchangeability. |
| C | Designates a specific internal design and contact angle. | Optimized for handling combined loads effectively. |
| /3 | Indicates a C3 radial internal clearance group. | Provides greater than normal clearance, suitable for applications with thermal expansion or where a loose fit is used. |
1211 C/3 Bearing Structural Features & Performance Benefits
- High Rigidity & Load Capacity: The double row construction significantly increases rigidity compared to single row bearings, providing stable support for shafts and enabling the bearing to handle substantial combined loads (radial and axial) from both directions.
- Optimized for Precision: The use of a nylon cage reduces friction, weight, and allows for smoother operation at higher speeds, contributing to the bearing's overall precision and efficiency.
- Robust Material Construction: Rings and balls made from chrome steel ensure high durability, wear resistance, and a long operational lifespan under demanding conditions.
- Pre-lubricated & Ready-to-Use: The bearing is supplied with grease, simplifying installation and providing immediate protection and smooth running from startup.
1211 C/3 Bearing Typical Application Areas
This bearing is ideally suited for a wide range of industrial applications where high rigidity and the ability to manage combined loads are critical. Key sectors include:
- Electric Motors and Generators
- Gearboxes and Transmission Systems
- Industrial Fans and Blowers
- Material Handling Equipment
- Agricultural Machinery
