7014 ACD/HCP4ATBTA
Hybrid Ceramic Super Precision Bearings
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Part No.
Part No.
7014 ACD/HCP4ATBTA
Basic Information
System of measurement
Metric
Weight
1.5 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
60 mm
Width tolerance
-0.2mm to 0
Contact angle
25 °
Ball & Washer Dimensions
Ball diameter
12.7 mm
Ball quantity
19
Performance
Temperature range
- 30°C to 110 °C
Radial dynamic load rating
23850 lbf
Radial static load rating
29700 lbf
Limiting speed
36 X 1000 rpm
Lubrication
Lubricated
Matched arrangement
Triplex Back-to-Back (TBT)
Number of bearings in matched set
3
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
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7014 ACD/HCP4ATBTA Bearing Product Overview & Core Advantages
The 7014 ACD/HCP4ATBTA is a high-precision angular contact ball bearing designed for demanding applications requiring exceptional rigidity and accuracy. This triplex back-to-back (TBT) matched set delivers superior performance in handling combined radial and axial loads. Manufactured to P4A tolerance class and featuring ceramic balls and a phenolic cage, it is engineered for high-speed operation and extended service life in precision machinery.
7014 ACD/HCP4ATBTA Bearing Model Code Explained, Specifications & Naming Convention
The model number 7014 ACD/HCP4ATBTA breaks down as follows:
- 7014: Basic bearing series, 70mm bore, 110mm OD, 60mm width
- A: 25° contact angle, optimized for high axial load capacity
- CD: Universal matching designation for pre-set axial clearance in a duplex pair
- HCP4A: P4A tolerance class (higher than ABEC 7/ISO P4), indicating ultra-precision manufacturing
- TB: Triplex Back-to-Back arrangement of three bearings
- TA: Extra light preload (Class A) for minimal friction and optimal high-speed performance
7014 ACD/HCP4ATBTA Bearing Structural Features & Performance Benefits
- Exceptional Rigidity & Load Capacity: The triplex back-to-back configuration creates an extremely rigid bearing system capable of withstanding heavy combined loads and moments. The 25° contact angle provides excellent axial load carrying capacity in both directions.
- High-Speed Performance: The combination of ceramic balls (reducing centrifugal forces and friction), phenolic cage (lightweight with excellent tribological properties), and extra light preload enables operation at the specified limiting speed of 36,000 rpm.
- Ultra-Precision: Manufactured to P4A tolerance class with tight dimensional controls on bore, outside diameter, and width, ensuring minimal runout and superior rotational accuracy for critical applications.
- Advanced Material Selection: Ceramic balls offer advantages including reduced weight, higher stiffness, lower thermal expansion, and electrical insulation compared to steel, contributing to the bearing's overall performance and longevity.
7014 ACD/HCP4ATBTA Bearing Typical Application Areas
This precision bearing set is ideally suited for high-performance applications such as:
- Machine Tool Spindles (high-speed milling, grinding, and turning centers)
- Precision Robotics and automation arms
- High-Frequency Machining Spindles
- Aerospace Actuators and control systems
- Medical Device Rotary Systems
- Advanced Pump and Compressor Shafts requiring high rigidity
