7014 ACETNH/HCP4AL1DBA
Hybrid Ceramic Super Precision Bearings
Image may differ from product. See technical specification for details.
Part No.
Part No.
7014 ACETNH/HCP4AL1DBA
Basic Information
System of measurement
Metric
Weight
1.11 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
40 mm
Width tolerance
-0.2mm to 0
Contact angle
25 °
Ball & Washer Dimensions
Ball diameter
9.525 mm
Ball quantity
25
Performance
Temperature range
- 30°C to 110 °C
Radial dynamic load rating
8190 lbf
Radial static load rating
7762 lbf
Limiting speed
29 X 1000 rpm
Lubrication
Lubricated
Matched arrangement
Duplex Back-to-Back (DB)
Number of bearings in matched set
2
Universal matching bearing
No (Standard)
Preload
Extra light / Class A
Materials
Ring material
Chrome Steel
Ball material
Ceramic
Cage material
Phenolic
Technical Drawings
No drawings available at the moment, will be launched soon
In Stock
Price available upon request.
Our sales team will respond within 24 hours with a competitive quote tailored to your requirements.
REQUEST A QUOTE
- Fast delivery
- Enjoy discounts on bulk purchases
- Secure Payment
- Fast Global Shipping
7014 ACETNH/HCP4AL1DBA Bearing Product Overview & Core Advantages
The 7014 ACETNH/HCP4AL1DBA is a high-precision duplex angular contact ball bearing designed for demanding applications requiring exceptional accuracy and rigidity. This matched set features a Back-to-Back (DB) arrangement, providing superior stability and the ability to withstand combined radial and axial loads from both directions. Manufactured to the stringent P4A tolerance class and featuring a ceramic ball and phenolic cage construction, this bearing is engineered for high-speed operation and long-term reliability in precision machinery.
Model Code Breakdown
| Code Segment | Technical Meaning |
|---|---|
| 7014 | Basic bearing series and size designation (70mm bore, 110mm OD). |
| ACE | Angular Contact, 25° contact angle. |
| TNH | Phenolic (resin) cage design. |
| HC | Hybrid Ceramic (Silicon Nitride) balls. |
| P4A | High precision tolerance class. |
| L1 | Light preload. |
| DB | Duplex Back-to-Back mounting arrangement. |
| A | Extra light preload classification. |
7014 ACETNH/HCP4AL1DBA Bearing Structural Features & Performance Benefits
- High Rigidity & Load Capacity: The duplex Back-to-Back (DB) arrangement creates a rigid bearing system that effectively resists moment loads and supports significant combined radial and axial loads.
- Superior High-Speed Performance: The combination of a lightweight phenolic cage and low-density ceramic (Si3N4) balls reduces centrifugal forces, enabling a high limiting speed of 29,000 rpm. The 25° contact angle is optimized for high-speed axial load capacity.
- Enhanced Operational Life: Hybrid ceramic construction offers excellent wear resistance, reduced heat generation, and extended service life, especially in lubricant-starved conditions.
- Precision Engineering: Manufactured to P4A tolerance class with tight dimensional control on the bore diameter, outside diameter, and width, ensuring predictable performance and precise shaft positioning.
7014 ACETNH/HCP4AL1DBA Bearing Typical Application Areas
This precision bearing is ideally suited for high-performance applications, including:
- Machine Tool Spindles: High-speed milling, grinding, and turning centers.
- Precision Robotics: Arm joints and high-accuracy rotary axes.
- Aerospace & Defense Systems: Gyroscopes, radar platforms, and auxiliary power units.
- High-Frequency Motors and Spindles
