7214 CD/HCP4A
Hybrid Ceramic Super Precision Bearings
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Part No.
Part No.
7214 CD/HCP4A
Basic Information
System of measurement
Metric
Weight
0.95 kg
Tolerance class
P4 (ABEC-7)
Seal type
Open
For load direction
Angular Contact
Main Dimensions
Bore diameter
70 mm
Bore diameter tolerance
-0.007mm to 0
Outside diameter
125 mm
Outside diameter tolerance
-0.009mm to 0
Width
24 mm
Width tolerance
-0.2mm to 0
Contact angle
15 °
Ball & Washer Dimensions
Ball diameter
15.875 mm
Ball quantity
16
Performance
Temperature range
-30° to 110 °C
Radial dynamic load rating
15502 lbf
Radial static load rating
13162 lbf
Limiting speed
20 X 1000 rpm
Lubrication
Lubricated
Matched arrangement
Single
Preload
Available
Materials
Ring material
Chrome Steel
Ball material
Ceramic
Cage material
Phenolic
Technical Drawings
No drawings available at the moment, will be launched soon
Price:
$ 721.82
/ each
In Stock
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7214 CD/HCP4A Bearing Product Overview & Core Advantages
The 7214 CD/HCP4A is a high-precision angular contact ball bearing engineered for applications demanding exceptional accuracy and performance. This single-row bearing is distinguished by its 15° contact angle and P4 (ABEC-7) tolerance class, making it ideal for handling combined radial and axial loads with superior rigidity. A key advantage is its ceramic ball construction, which reduces weight and centrifugal forces, enabling higher operating speeds and extended service life. The bearing is preloaded and pre-lubricated, ensuring immediate operational readiness and consistent performance in demanding environments.
7214 CD/HCP4A Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 7214 | Basic bearing series, indicating a 70 mm bore, 125 mm OD, and 24 mm width. |
| CD | A 15° contact angle and optimized internal design for high rigidity and speed. |
| HC | Hybrid Ceramic construction, featuring ceramic balls and a steel ring. |
| P4 | Indicates a P4 (ABEC-7) tolerance class for ultra-precise running accuracy. |
| A | Signifies that the bearing is supplied with a preload for enhanced stiffness. |
7214 CD/HCP4A Bearing Structural Features & Performance Benefits
- Hybrid Ceramic Design: The use of ceramic balls significantly reduces friction and heat generation, contributing to a limiting speed of 20,000 rpm. This design also offers superior resistance to wear and electrical arcing.
- High Rigidity & Load Capacity: The 15° contact angle and optimized internal geometry provide excellent support for combined loads. With a dynamic load rating of 15,502 lbf and a static load rating of 13,162 lbf, it ensures reliable operation under significant stress.
- Precision & Stability: Manufactured to P4 tolerance standards, this bearing guarantees minimal runout and vibration, which is critical for high-precision applications. The phenolic cage ensures smooth operation at high speeds.
- Ready-to-Install: The bearing is pre-lubricated and features an open design, making it immediately operational within its specified temperature range of -30°C to 110°C.
7214 CD/HCP4A Bearing Typical Application Areas
- High-Speed Machine Tool Spindles
- Precision Grinding Applications
- High-Frequency Electric Motors & Spindles
- Advanced Robotics and Automation Systems
- Aerospace Actuation Systems
- Medical and Dental Equipment
