3214 A
Double Row Angular Contact Ball Bearings
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Basic Information
Main Dimensions
Inner Ring Dimensions
Outer Ring Dimensions
Performance
Materials
Environment & Compliance
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3214 A Bearing Product Overview & Core Advantages
The 3214 A is a double row angular contact ball bearing designed for applications requiring high precision and robust performance. Engineered to simultaneously handle significant combined loads—both radial and bidirectional axial loads—this bearing offers exceptional high rigidity due to its double row construction. Manufactured to P6 (ABEC-3) tolerance class, it ensures reliable operation in high-speed and precision-demanding environments. Its compact design and superior load capacity make it an ideal choice for machinery where space optimization and operational reliability are critical.
3214 A Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 3214 | Standard bearing series designation, indicating bearing dimensions (70mm bore, 125mm OD). |
| A | Signifies a 30° contact angle, optimized for handling higher axial loads. |
Note: This is an open bearing variant without seals or special lubrication suffixes, offering flexibility for custom lubrication systems.
3214 A Bearing Structural Features & Performance Benefits
- High Rigidity & Load Capacity: The double row design provides superior radial and axial stiffness, enabling stable performance under combined loads and moment loads.
- Precision Engineering: Manufactured to P6 (ABEC-3) tolerance class with a stainless steel cage, ensuring smooth operation, reduced vibration, and suitability for high-speed applications up to 4,500 rpm.
- Material Excellence: Constructed from chrome steel for rings and balls, offering high wear resistance and durability under demanding conditions.
- Optimized Internal Geometry: Features precise shoulder diameters (inner ring: 88.5mm, outer ring: 107.03mm) and a 1.5mm chamfer for easy installation and optimal load distribution.
3214 A Bearing Typical Application Areas
The 3214 A bearing is widely used in industries requiring high precision and reliability, including:
- Machine Tool Spindles and high-precision rotary tables
- Industrial Pumps and compressors
- Gearboxes and transmission systems
- Precision Medical Equipment and testing instruments
