S7014 ACD/HCP4ATBTA
Hybrid Ceramic Super Precision Bearings
Image may differ from product. See technical specification for details.
Part No.
Part No.
S7014 ACD/HCP4ATBTA
Basic Information
System of measurement
Metric
Weight
1.53 kg
Tolerance class
P4A
Seal type
Sealed
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
28 X 1000 rpm
Lubrication
Grease
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
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
S7014 ACD/HCP4ATBTA Bearing Product Overview & Core Advantages
The S7014 ACD/HCP4ATBTA is a high-precision metric angular contact ball bearing supplied as a matched triplex set in a back-to-back (TBT) arrangement. Engineered for the most demanding applications, its core advantages stem from its P4A super-precision tolerance class, ceramic ball construction, and phenolic resin cage. This combination delivers exceptional rotational accuracy, enables very high limiting speeds up to 28,000 rpm, and provides superior rigidity and stability under complex combined loads (radial and axial). The pre-loaded Extra Light / Class A configuration ensures immediate, precise positioning, making it ideal for high-performance spindles.
S7014 ACD/HCP4ATBTA Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning | Benefit |
|---|---|---|
| S7014 | Basic bearing series and size designation. | Defines the core dimensions: 70mm bore, 110mm OD, 60mm width. |
| ACD | Angular Contact Design with a 25° contact angle. | Optimized for carrying significant axial loads in one direction and radial loads. |
| HC | Hybrid Ceramic (Ceramic balls with steel rings). | Reduces centrifugal forces, lowers operating temperature, and extends service life at high speeds. |
| P4A | Tolerance class superior to ABEC 7/ISO P4, with tighter width and runout tolerances. | Guarantees extreme running accuracy, low vibration, and high system rigidity. |
| TBT | Triplex Back-to-Back matched set. | Provides maximum moment rigidity and stability, capable of supporting complex combined loads from multiple directions. |
| A | Extra Light Preload. | Minimizes runout and axial/radial play for precise positioning without excessive friction or heat generation. |
S7014 ACD/HCP4ATBTA Bearing Structural Features & Performance Benefits
- Superior Rigidity & Load Capacity: The triplex back-to-back (TBT) arrangement of three bearings creates an exceptionally stiff bearing system. This configuration is highly effective at resisting moment loads and managing heavy combined radial and axial loads, with a dynamic load rating of 23,850 lbf and a static load rating of 29,700 lbf.
- High-Speed Performance: The use of ceramic (Si3N4) balls significantly reduces mass and centrifugal force, while the lightweight, high-strength phenolic resin cage ensures stability. This synergy allows the bearing to achieve a remarkable limiting speed of 28,000 rpm with minimal heat generation.
- Precision & Accuracy: Manufactured to P4A super-precision standards with tight bore, OD, and width tolerances, this bearing guarantees minimal runout and vibration. This is critical for applications requiring the highest levels of rotational accuracy.
- Sealed & Pre-Lubricated: The sealed design with factory-applied grease protects against contamination and retains lubrication, ensuring long-term, maintenance-free operation within the specified temperature range (-30°C to 110°C).
S7014 ACD/HCP4ATBTA Bearing Typical Application Areas
This bearing is specifically designed for high-performance machinery where precision, speed, and rigidity are paramount. Key application areas include:
- High-Speed Machine Tool Spindles: For CNC milling, grinding, and drilling centers.
- Precision Spindles: In PCB drilling, semiconductor manufacturing, and other high-accuracy processes.
- High-Frequency Motors: Where low vibration and high rotational accuracy are required.
- Advanced Robotic Systems: Particularly in high-accuracy robotic arm joints and rotary actuators.
