1211-K-TVH-C3
1200 Series Self Aligning Ball Bearings
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Part No.
Part No.
1211-K-TVH-C3
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
Taper 1:12
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
C3
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:
$ 45.08
/ each
In Stock
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1211-K-TVH-C3 Bearing Product Overview & Core Advantages
The 1211-K-TVH-C3 is a double row angular contact ball bearing designed for demanding applications requiring high rigidity and precise operation. This metric bearing features a tapered bore (1:12) and an open design, optimized to handle significant combined loads (radial and axial). Its double row construction provides superior stiffness and stability, making it an ideal choice for high-precision machinery where reliable performance under load is critical. The bearing is pre-lubricated and features a generous C3 radial internal clearance, accommodating thermal expansion in high-speed operations.
1211-K-TVH-C3 Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 1211 | Standard bore diameter (55 mm) and dimension series. |
| K | Indicates a tapered bore with a 1:12 ratio, facilitating precise mounting and dismounting on adapter sleeves or withdrawal sleeves. |
| TVH | Signifies the use of a glass fiber reinforced nylon cage (polyamide cage). This cage design contributes to lower friction, reduced weight, and is suitable for high-speed operation. |
| C3 | Denotes a greater than normal radial internal clearance. This is essential for applications where thermal expansion is a factor, such as in high-speed or high-temperature environments, preventing preload and ensuring smooth operation. |
1211-K-TVH-C3 Bearing Structural Features & Performance Benefits
- High Rigidity & Load Capacity: The double row angular contact design provides significantly higher rigidity compared to single row bearings. It is engineered to support substantial radial loads and bidirectional axial loads simultaneously, making it exceptionally robust for combined load scenarios.
- Optimized for Performance: The tapered bore (K-designation) ensures a secure and concentric fit on the shaft, enhancing overall system stability. The nylon cage (TVH) offers excellent performance at high rotational speeds, contributing to a limiting speed of 9,000 rpm.
- Operational Reliability: Manufactured from high-grade chrome steel for both rings and balls, the bearing ensures durability and a long service life. The predefined C3 clearance accommodates thermal expansion, preventing binding and maintaining performance across its specified temperature range.
- Pre-Lubricated for Immediate Use: The bearing comes pre-lubricated, allowing for immediate installation and initial operation, simplifying maintenance protocols.
1211-K-TVH-C3 Bearing Typical Application Areas
This bearing is ideally suited for industrial applications requiring high precision and reliability under heavy loads and high speeds. Key sectors include:
- Electric Motors and Generators
- Gearboxes and Transmission Systems
- Industrial Pumps and Compressors
- Material Handling Equipment
- Agricultural Machinery
