1215-K C/3
1200 Series Self Aligning Ball Bearings
Image may differ from product. See technical specification for details.
Part No.
Part No.
1215-K C/3
Basic Information
Bearing type
Ball
System of measurement
Metric
Construction
Double Row
Weight
1.35 kg
Seal type
Open
For load direction
Radial
Main Dimensions
Bore diameter
75 mm
Bore diameter tolerance
-0.015mm to 0
Bore type
Taper 1:12
Outside diameter
130 mm
Outside diameter tolerance
-0.018mm to 0
Width
25 mm
Width tolerance
-0.15mm to 0
Chamfer dimension
1.5 mm
Inner Ring Dimensions
Shoulder diameter inner ring
93.05 mm
Outer Ring Dimensions
Shoulder diameter outer ring
114.2 mm
Performance
Temperature range
-30° to 110 °C
Radial dynamic load rating
8775 lbf
Radial static load rating
3510 lbf
Limiting speed
6.7 X 1000 rpm
Lubrication
Lubricated
Radial internal clearance
CN
Materials
Ring material
Chrome Steel
Ball material
Chrome Steel
Cage material
Stainless Steel
Environment & Compliance
REACH
Compliant
ROHS
Compliant
Technical Drawings
No drawings available at the moment, will be launched soon
Price:
$ 70.32
/ each
In Stock
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1215-K C/3 Bearing Product Overview & Core Advantages
The 1215-K C/3 is a double row angular contact ball bearing designed for exceptional performance in demanding applications. This precision bearing features a tapered bore (1:12) and is pre-lubricated for immediate use. Its double-row design provides superior high rigidity and the ability to accommodate combined loads—significant radial forces and moderate axial loads in both directions. With a CN radial internal clearance and a stainless steel cage, it is engineered for reliable operation and long service life in high-precision machinery.
1215-K C/3 Bearing Model Code Explained, Specifications & Naming Convention
| Suffix | Technical Meaning |
|---|---|
| K | Indicates a tapered bore with a 1:12 ratio, designed for precise mounting on adapter sleeves. |
| C/3 | Specifies the radial internal clearance group. C3 clearance is greater than normal (CN), making it suitable for applications with thermal expansion or where interference fits are used. |
1215-K C/3 Bearing Structural Features & Performance Benefits
- High Rigidity & Load Capacity: The double row angular contact ball bearing construction provides significantly higher radial stiffness than single-row designs, enabling stable support under heavy combined loads.
- Optimized for Interference Fits: The tapered bore (1:12) allows for precise and secure mounting on an adapter sleeve, ensuring a tight fit that minimizes inner ring creep under load.
- Enhanced Operational Reliability: The stainless steel cage offers high strength and corrosion resistance, contributing to smooth operation at the limiting speed of 6,700 rpm. The standard C3 radial clearance accommodates thermal expansion in demanding operating conditions.
- Ready-to-Install Convenience: The bearing comes pre-lubricated, simplifying installation and providing immediate protection upon startup.
1215-K C/3 Bearing Typical Application Areas
This bearing is ideally suited for applications requiring robust performance and high precision, including:
- Industrial Gearboxes and Transmissions
- Material Handling Conveyor Systems
- Agricultural Machinery
- Vibrating Screens and other heavy-duty equipment
- Pump and Compressor Systems
