S7001 ACEGA/P4A
Sealed Super Precision Angular Contact Ball Bearings
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Part No.
Part No.
S7001 ACEGA/P4A
Basic Information
System of measurement
Metric
Weight
0.021 kg
Tolerance class
P4A
Seal type
Sealed
For load direction
Angular Contact
Main Dimensions
Bore diameter
12 mm
Bore diameter tolerance
-0.004mm to 0
Outside diameter
28 mm
Outside diameter tolerance
-0.004mm to 0
Width
8 mm
Width tolerance
-0.2mm to 0
Contact angle
25 °
Ball & Washer Dimensions
Ball diameter
3.969 mm
Ball quantity
12
Performance
Temperature range
- 30°C to 110 °C
Radial dynamic load rating
691 lbf
Radial static load rating
286 lbf
Limiting speed
95 X 1000 rpm
Lubrication
Grease
Matched arrangement
Single
Number of bearings in matched set
2
Universal matching bearing
Universal Matchable (SU)
Preload
Extra light / Class A
Materials
Ring material
Chrome Steel
Ball material
Chrome Steel
Cage material
Phenolic
Technical Drawings
No drawings available at the moment, will be launched soon
In Stock
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S7001 ACEGA/P4A Bearing Product Overview & Core Advantages
The S7001 ACEGA/P4A is a super-precision angular contact ball bearing designed for the most demanding high-speed and high-rigidity applications. As a single bearing from a universally matchable (SU) set, it excels at simultaneously handling combined radial and axial loads. Manufactured to the exacting P4A tolerance class, it delivers exceptional running accuracy, low noise, and low heat generation, making it ideal for high-reliability spindles and precision machinery where uncompromising performance is critical.
S7001 ACEGA/P4A Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| S7001 | Series designation for a 12mm bore, super-precision angular contact ball bearing. |
| AC | 25° contact angle, optimized for high axial load capacity. |
| EGA | Pre-greased with a specific, high-performance lubricant. |
| P4A | Indicates a super-precision tolerance class with enhanced dimensional and running accuracy requirements. |
S7001 ACEGA/P4A Bearing Structural Features & Performance Benefits
- Super-Precision Design: Manufactured to P4A tolerance class, this bearing ensures minimal runout and vibration, which is paramount for achieving superior surface finishes and positional accuracy in machining and inspection equipment.
- High-Speed Capability: The lightweight phenolic resin cage and optimized internal geometry contribute to lower centrifugal forces and friction, enabling a high limiting speed of 95,000 rpm.
- High Rigidity & Load Capacity: The 25° contact angle and robust construction provide high rigidity, effectively supporting combined loads (radial and axial) in high-demand applications.
- Sealed & Pre-Lubricated: The sealed design with factory-applied grease lubrication protects against contamination and provides long-term, maintenance-free operation within the specified temperature range.
S7001 ACEGA/P4A Bearing Typical Application Areas
This bearing is engineered for high-performance applications, including:
- Machine Tool Spindles for CNC milling, grinding, and turning centers
- High-frequency Precision Spindles
- High-Speed Motors and Robotic Drives
- Medical and Dental Handpiece Drives
- Aerospace Instrumentation and Gyroscopes
