1218C3
1200 Series Self Aligning Ball Bearings
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Part No.
Part No.
1218C3
Basic Information
Bearing type
Ball
System of measurement
Metric
Construction
Double Row
Weight
2.5 kg
Seal type
Open
For load direction
Radial
Main Dimensions
Bore diameter
90 mm
Bore diameter tolerance
-0.02mm to 0
Bore type
Cylindrical
Outside diameter
160 mm
Outside diameter tolerance
-0.025mm to 0
Width
30 mm
Width tolerance
-0.2mm to 0
Chamfer dimension
2 mm
Inner Ring Dimensions
Shoulder diameter inner ring
112.5 mm
Outer Ring Dimensions
Shoulder diameter outer ring
138.7 mm
Performance
Temperature range
-30° to 110 °C
Radial dynamic load rating
12870 lbf
Radial static load rating
5310 lbf
Limiting speed
5.3 X 1000 rpm
Lubrication
Lubricated
Radial internal clearance
C3
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:
$ 148.8
/ each
In Stock
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1218C3 Bearing Product Overview & Core Advantages
The 1218C3 is a double row angular contact ball bearing designed for exceptional performance in demanding industrial applications. This precision bearing excels at simultaneously handling significant combined loads, including both radial and axial forces. Its compact bearing dimensions (90mm bore, 160mm OD, 30mm width) and robust construction provide high rigidity and stable rotational accuracy, making it ideal for machinery requiring reliable, long-term operation under challenging conditions. The C3 radial internal clearance further enhances its suitability for applications with thermal expansion or heavy load variations.
1218C3 Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning | Significance |
|---|---|---|
| 1218 | Basic Bearing Code | Denotes a standard double row angular contact ball bearing with a 90mm bore diameter and 160mm outside diameter. |
| C3 | Radial Internal Clearance | Indicates a greater than normal radial internal clearance. This is critical for applications involving thermal expansion, high speeds, or heavy loads, preventing pre-load and ensuring smooth operation. |
1218C3 Bearing Structural Features & Performance Benefits
- High Rigidity & Load Capacity: The double row ball complement and optimized contact angle enable the bearing to support substantial combined radial and axial loads from both directions, providing superior stability and high rigidity.
- Optimized for Demanding Conditions: The C3 clearance is a key performance feature, accommodating shaft expansion and misalignment under high operational temperatures or heavy loads, thereby reducing stress and extending service life.
- Durable Construction: Manufactured from Chrome Steel rings and balls with a Stainless Steel cage, this bearing offers excellent durability and resistance to wear, contributing to its high dynamic and static load ratings (12,870 lbf / 5,310 lbf).
- Pre-Lubricated for Immediate Use: The bearing comes lubricated from the factory, ensuring immediate installation and initial operation without the need for additional preparation.
1218C3 Bearing Typical Application Areas
This versatile double row angular contact ball bearing is engineered for a wide range of industrial machinery, including:
- Industrial Gearboxes and Transmissions
- Pumps and Compressors
- Material Handling Equipment (e.g., conveyor pulleys)
- Agricultural Machinery
- General Industrial Machinery requiring robust support for combined loads
