1211-K-TVH
1200 Series Self Aligning Ball Bearings
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Part No.
Part No.
1211-K-TVH
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
CN
Materials
Ring material
Chrome Steel
Ball material
Chrome Steel
Cage material
Nylon
Environment & Compliance
REACH
Compliant
ROHS
Compliant
Technical Drawings
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In Stock
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1211-K-TVH Bearing Product Overview & Core Advantages
The 1211-K-TVH is a double row angular contact ball bearing designed for applications requiring high rigidity and precise operation. This metric bearing features a tapered bore (1:12) and an open design, making it ideal for handling significant combined loads (radial and axial). Its compact bearing dimensions (55mm bore, 100mm OD, 21mm width) and robust construction ensure reliable performance in demanding environments, offering excellent stability and long service life.
1211-K-TVH Bearing Model Code Explained, Specifications & Naming Convention
| Suffix | Technical Meaning |
|---|---|
| K | Indicates a tapered bore with a 1:12 ratio, facilitating precise mounting and dismounting on adapter sleeves or withdrawal sleeves. |
| TVH | Signifies a Nylon (Polyamide) cage and that the bearing is lubricated. This combination contributes to lower friction, quieter operation, and suitability for high-speed applications. |
1211-K-TVH Bearing Structural Features & Performance Benefits
- High Rigidity & Load Capacity: The double row ball complement and angular contact design provide superior rigidity and enable the bearing to sustain substantial radial loads and bidirectional axial loads simultaneously.
- Optimized for Precision: Manufactured from Chrome Steel for both rings and balls, ensuring high dimensional stability and wear resistance. The specified CN radial internal clearance is standard for normal operating conditions.
- High-Speed Capability: The lightweight Nylon cage (TVH) reduces centrifugal forces, allowing for a high limiting speed of 9,000 rpm. The pre-applied lubrication further enhances performance at high rotational velocities.
- Ready-to-Install: The bearing is supplied lubricated and is compliant with RoHS and REACH, making it a reliable, off-the-shelf component for immediate use within its specified temperature range of -30°C to 110°C.
1211-K-TVH Bearing Typical Application Areas
This bearing is ideally suited for a wide range of industrial machinery, including:
- Electric Motors and Gearboxes
- Pump Systems and Compressors
- Material Handling Equipment
- Agricultural Machinery
- Various industrial applications requiring a robust, high-capacity bearing with a tapered bore for secure shaft fitting.
