1210KC3
1200 Series Self Aligning Ball Bearings
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Part No.
Part No.
1210KC3
Basic Information
Bearing type
Ball
System of measurement
Metric
Construction
Double Row
Weight
0.53 kg
Seal type
Open
For load direction
Radial
Main Dimensions
Bore diameter
50 mm
Bore diameter tolerance
-0.012mm to 0
Bore type
Taper 1:12
Outside diameter
90 mm
Outside diameter tolerance
-0.015mm to 0
Width
20 mm
Width tolerance
-0.12mm to 0
Chamfer dimension
1.1 mm
Inner Ring Dimensions
Shoulder diameter inner ring
61.7 mm
Outer Ring Dimensions
Shoulder diameter outer ring
78.1 mm
Performance
Temperature range
-30° to 110 °C
Radial dynamic load rating
5962 lbf
Radial static load rating
2059 lbf
Limiting speed
10 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:
$ 36.49
/ each
In Stock
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1210KC3 Bearing Product Overview & Core Advantages
The 1210KC3 is a double row angular contact ball bearing designed for applications requiring high rigidity and the ability to handle combined loads. Featuring a tapered bore (1:12 ratio), this precision bearing offers superior radial load capacity and is pre-lubricated for immediate use. Its compact design, with a 50 mm bore and 90 mm outside diameter, makes it an ideal solution for space-constrained, high-performance machinery demanding reliability and dimensional stability.
1210KC3 Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 1210 | Standard bearing series designation, indicating a 50 mm bore and 90 mm outside diameter. |
| K | Denotes a tapered bore with a 1:12 ratio, facilitating precise interference fits on adapter sleeves or withdrawal sleeves for secure mounting. |
| C3 | Indicates a greater radial internal clearance than the Normal (CN) group. This is optimal for applications with thermal expansion or where interference fits reduce operational clearance. |
1210KC3 Bearing Structural Features & Performance Benefits
- High Rigidity & Load Capacity: The double row ball construction provides significantly higher radial stiffness compared to single row bearings, enabling stable operation under substantial radial dynamic loads (rated at 5962 lbf).
- Tapered Bore Design: The 1:12 tapered bore allows for precise axial positioning and a secure, interference fit when mounted with appropriate sleeves, eliminating slippage and ensuring maximum power transmission.
- Optimized for Performance: The Nylon cage contributes to smooth operation, lower friction, and is suitable for high-speed applications (with a limiting speed of 10,000 rpm). The C3 clearance accommodates thermal effects in demanding conditions.
- Ready-to-Install: The bearing comes pre-lubricated, simplifying installation and providing immediate protection. Manufactured from Chrome Steel, it ensures durability and a long service life within a temperature range of -30°C to 110°C.
1210KC3 Bearing Typical Application Areas
This bearing is engineered for robust industrial environments. Key applications include:
- Electric Motors and Gearboxes
- Industrial Fans and Blowers
- Agricultural Machinery
- Material Handling Conveyors
- Pump Systems
