7014 CEGB/P4A
7000 Series Super Precision Angular Contact Ball Bearings
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Part No.
Part No.
7014 CEGB/P4A
Basic Information
System of measurement
Metric
Weight
0.61 kg
Tolerance class
P4A
Seal type
Open
For load direction
Angular Contact
Main Dimensions
Bore diameter
70 mm
Bore diameter tolerance
-0.004mm to 0
Outside diameter
110 mm
Outside diameter tolerance
-0.004mm to 0
Width
20 mm
Width tolerance
-0.2mm to 0
Contact angle
15 °
Ball & Washer Dimensions
Ball diameter
9.525 mm
Ball quantity
25
Performance
Temperature range
- 30°C to 110 °C
Radial dynamic load rating
5355 lbf
Radial static load rating
4118 lbf
Limiting speed
27 X 1000 rpm
Lubrication
Lubricated
Matched arrangement
Single
Number of bearings in matched set
4
Universal matching bearing
Universal Matchable (SU)
Preload
Light / Class B
Materials
Ring material
Chrome Steel
Ball material
Chrome Steel
Cage material
Phenolic
Technical Drawings
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7014 CEGB/P4A Bearing Product Overview & Core Advantages
The 7014 CEGB/P4A is a high-precision angular contact ball bearing designed for applications demanding exceptional accuracy and reliability. As a single bearing with a 15° contact angle and P4A tolerance class, it excels in handling combined loads—simultaneously supporting significant radial loads and axial loads in one direction. Its Universal Matchable (SU) designation means it can be precision-paired with other bearings from a matched set for optimal preload and performance in complex arrangements. The combination of a phenolic cage and factory-applied lubrication enables superior high-speed performance, making it an ideal choice for high-rigidity, high-rotation applications.
7014 CEGB/P4A Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning | Performance Implication |
|---|---|---|
| 7014 | Standard bearing series designation indicating bore diameter (70 mm), outside diameter (110 mm), and width (20 mm). | Defines the core bearing dimensions and form factor. |
| C | Designates a 15° contact angle. | Optimized for high-speed operation and moderate axial load capacity. |
| E | Indicates an optimized internal design, typically including a larger ball complement and reinforced raceways. | Enhances radial dynamic load rating (5355 lbf) and overall rigidity. |
| GB | Specifies a Light preload / Class B. | Reduces axial and radial play, increases system stiffness, and minimizes noise and vibration at the expense of slightly higher starting torque. |
| P4A | Denotes an ultra-precision tolerance class exceeding ABEC 7 standards. | Ensures extremely tight dimensional and running accuracy for applications requiring minimal runout and superior rotational precision. |
7014 CEGB/P4A Bearing Structural Features & Performance Benefits
- High Rigidity and Load Capacity: The optimized internal design (E) with 25 high-grade chrome steel balls and reinforced raceways provides superior high rigidity, enabling the bearing to handle significant combined loads effectively.
- Superior High-Speed Performance: The lightweight phenolic resin cage offers excellent dimensional stability and low friction, contributing to a high limiting speed of 27,000 rpm. The standard factory lubrication further supports reliable operation at these high rotational speeds.
- Precision and Stability: The P4A precision grade guarantees minimal running tolerances and exceptional dimensional accuracy, which is critical for applications requiring high positional accuracy and smooth operation.
- Universal Matching Capability (SU): As a universal matchable bearing, it can be flexibly assembled with other bearings from the same manufactured set in various configurations (e.g., back-to-back, face-to-face) to achieve the desired preload and stiffness without selective mounting.
7014 CEGB/P4A Bearing Typical Application Areas
This precision angular contact bearing is ideally suited for high-performance machinery and systems, including:
- Machine Tool Spindles: For high-speed milling, grinding, and turning centers where accuracy and rigidity are paramount.
- High-Frequency Motors and Spindles: Used in electric motors and motorized spindles requiring high rotational speeds and low vibration.
- Precision Gearboxes and Transmission Systems: Provides accurate shaft positioning and handles combined loads in demanding drive applications.
- Medical and Laboratory Equipment: Such as centrifuges and high-speed scanners that demand quiet, precise, and reliable rotation.
