S7012 ACB/HCP4A
Hybrid Ceramic Super Precision Bearings
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Part No.
Part No.
S7012 ACB/HCP4A
Basic Information
System of measurement
Metric
Weight
0.43 kg
Tolerance class
P4 (ABEC-7)
Seal type
Sealed
For load direction
Angular Contact
Main Dimensions
Bore diameter
60 mm
Bore diameter tolerance
-0.007mm to 0
Outside diameter
95 mm
Outside diameter tolerance
-0.008mm to 0
Width
18 mm
Width tolerance
-0.2mm to 0
Contact angle
25 °
Ball & Washer Dimensions
Ball diameter
6.747 mm
Ball quantity
28
Performance
Temperature range
-30° to 110 °C
Radial dynamic load rating
3038 lbf
Radial static load rating
2565 lbf
Limiting speed
22 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:
$ 500.9
/ each
In Stock
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S7012 ACB/HCP4A Bearing Product Overview & Core Advantages
The S7012 ACB/HCP4A is a high-precision angular contact ball bearing engineered for demanding applications requiring exceptional accuracy and reliability. This single-row bearing is designed to accommodate combined loads, specifically high axial loads in one direction, making it ideal for high-speed spindles and precision machinery. Its compact design, featuring a 25° contact angle, provides superior high-speed performance and rigidity. Preloaded and pre-lubricated, it ensures consistent performance and long service life, eliminating the need for initial setup adjustments.
S7012 ACB/HCP4A Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning | Significance |
|---|---|---|
| S7012 | Basic bearing series and size designation | Indicates a high-precision, 60mm bore diameter bearing. |
| ACB | Angular Contact Bearing designation | Confirms the bearing type, optimized for axial loads. |
| HC | Hybrid Ceramic | Signifies the use of ceramic balls, which reduce friction, heat generation, and allow for higher speeds. |
| P4 | Tolerance Class (ABEC-7) | Denotes a very high precision grade for applications requiring extreme running accuracy and minimal vibration. |
| (Implied) | Sealed / Lubricated | The bearing is sealed and comes pre-lubricated, offering protection from contaminants and ensuring long-term, maintenance-free operation. |
S7012 ACB/HCP4A Bearing Structural Features & Performance Benefits
The S7012 ACB/HCP4A's advanced construction delivers significant performance advantages:
- Hybrid Ceramic Design: The combination of steel rings and ceramic balls significantly reduces centrifugal forces and friction, enabling a high limiting speed of 22,000 rpm. This also provides electrical insulation and superior performance in high-temperature environments.
- High Rigidity & Load Capacity: The 25° contact angle and robust single-row design provide excellent stiffness, effectively handling significant axial loads and moderate radial loads. With a dynamic load rating of 3038 lbf, it ensures reliable operation under demanding conditions.
- Precision & Stability: Manufactured to P4 (ABEC-7) tolerance, this bearing guarantees exceptional running accuracy and minimal rotational vibration, which is critical for high-precision machining and instrumentation.
- Maintenance-Free Operation: The integrated seals retain the factory-applied lubricant and protect against contamination, resulting in a long, reliable service life with no need for re-lubrication.
- Lightweight Cage: The phenolic resin cage is lightweight and possesses excellent sliding properties, contributing to smooth operation at high speeds and reduced cage wear.
S7012 ACB/HCP4A Bearing Typical Application Areas
The S7012 ACB/HCP4A is ideally suited for high-performance applications across various industries, including:
- Machine Tool Spindles: High-speed milling, grinding, and turning centers requiring precision and rigidity.
- Precision Robotics: Arm joints and rotary actuators where accuracy, speed, and reliability are paramount.
- High-Speed Motors & Spindles: Electric motors, dental handpieces, and small turbine spindles.
- Aerospace & Defense Systems: Gyroscopes, radar systems, and other instrumentation requiring high precision and reliability.
- Medical Equipment: High-speed dental drills and laboratory centrifuges.
