1218 C/3
1200 Series Self Aligning Ball Bearings
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Basic Information
Main Dimensions
Inner Ring Dimensions
Outer Ring Dimensions
Performance
Materials
Environment & Compliance
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1218 C/3 Bearing Product Overview & Core Advantages
The 1218 C/3 is a metric double row angular contact ball bearing engineered for applications demanding high precision and robust performance. This open-type bearing is designed to accommodate significant radial loads and is manufactured with tight dimensional tolerances for reliable operation in high-speed and high-rigidity environments. Its double row construction provides a compact solution with enhanced load-carrying capacity, making it ideal for precision machinery where space and performance are critical.
1218 C/3 Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 1218 | Standard bearing series designation, indicating bore diameter (90mm), outside diameter (160mm), and width (30mm). |
| C | Denotes a double row angular contact ball bearing with a 15-degree contact angle. |
| 3 | Specifies the internal clearance group. "C3" indicates a radial internal clearance greater than normal (CN), suitable for applications with thermal expansion or interference fits. |
1218 C/3 Bearing Structural Features & Performance Benefits
High Rigidity & Load Capacity: The double row design significantly increases the bearing's radial load rating (12,870 lbf dynamic) and provides superior rigidity compared to single row bearings, ensuring stable shaft support under heavy loads.
Optimized for Speed: Featuring a lightweight, durable stainless steel cage, the 1218 C/3 is capable of high-speed operation up to 5,300 rpm. The open design allows for efficient lubrication management, further enhancing its high-speed performance.
Precision & Durability: Manufactured from high-grade chrome steel for both rings and balls, this bearing offers excellent wear resistance and long service life. The standard C3 internal clearance provides operational flexibility in various thermal conditions.
Ready for Service: The bearing is pre-lubricated and operates effectively within a wide temperature range of -30°C to 110°C, making it ready for immediate installation in diverse industrial environments.
1218 C/3 Bearing Typical Application Areas
The 1218 C/3 double row angular contact ball bearing is ideally suited for a wide range of industrial machinery requiring robust performance and high precision, including:
- Gearboxes and Transmission Systems
- Industrial Pumps and Compressors
- Material Handling Equipment
- Electric Motors
- General Industrial Machinery with demanding radial load requirements
