7214 CD/P4A
7200 & 7300 Series Super Precision Angular Contact Ball Bearings
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Basic Information
Main Dimensions
Ball & Washer Dimensions
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7214 CD/P4A Bearing Product Overview & Core Advantages
The 7214 CD/P4A is a single-row angular contact ball bearing engineered for high-precision applications requiring exceptional rotational accuracy and rigidity. Designed to accommodate combined loads (radial and axial loads in one direction), this bearing features a 15° contact angle and is manufactured to P4 (ABEC-7) tolerance class for superior running accuracy. Its phenolic resin cage and factory-applied lubrication enable reliable high-speed operation up to 18,000 rpm, making it an ideal solution for machine tool spindles and other precision machinery.
7214 CD/P4A Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 7214 | Basic bearing series: 70mm bore, 125mm OD, 24mm width |
| CD | Contact angle designation: 15° contact angle |
| P4A | Tolerance class: P4 (ABEC-7) precision with specific running accuracy requirements |
7214 CD/P4A Bearing Structural Features & Performance Benefits
High Precision Construction: Manufactured to P4 tolerance class with tight dimensional tolerances (bore: -0.007mm to 0, OD: -0.009mm to 0) ensuring minimal runout and vibration for precision applications.
Optimized Load Capacity: The 15° contact angle provides excellent capability to handle combined radial and axial loads, with dynamic load rating of 15,502 lbf and static load rating of 13,162 lbf.
High-Speed Performance: The phenolic resin cage offers reduced weight and excellent sliding properties, while the pre-lubrication enables reliable operation at limiting speeds of 18,000 rpm.
Precision Components: Features chrome steel rings and balls with 16 balls of 15.875mm diameter for consistent performance and long service life in demanding applications.
7214 CD/P4A Bearing Typical Application Areas
- Machine Tool Spindles - High-precision machining centers and grinding machines
- Precision Gearboxes - Industrial transmission systems requiring high accuracy
- High-Speed Motors - Electric motors and spindle drives
- Medical Equipment - CT scanners and other precision medical devices
- Aerospace Components - Flight control systems and auxiliary power units
