S7012 ACD/P4A
Sealed Super Precision Angular Contact Ball Bearings
Image may differ from product. See technical specification for details.
Part No.
Part No.
S7012 ACD/P4A
Basic Information
System of measurement
Metric
Weight
0.41 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
11.112 mm
Ball quantity
19
Performance
Temperature range
-30° to 110 °C
Radial dynamic load rating
8775 lbf
Radial static load rating
7538 lbf
Limiting speed
13 X 1000 rpm
Lubrication
Lubricated
Matched arrangement
Single
Preload
Available
Materials
Ring material
Chrome Steel
Ball material
Chrome Steel
Cage material
Phenolic
Technical Drawings
No drawings available at the moment, will be launched soon
Price:
$ 501.6
/ each
In Stock
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S7012 ACD/P4A Bearing Product Overview & Core Advantages
The S7012 ACD/P4A is a precision angular contact ball bearing designed for applications demanding exceptional accuracy and high-speed performance. Engineered to a P4 (ABEC-7) tolerance class, it provides superior running accuracy and rotational stability. This bearing is preloaded and capable of supporting combined loads, including substantial axial loads in one direction, making it ideal for high-rigidity, high-reliability systems. Its compact design, sealed construction, and pre-lubrication ensure long service life with minimal maintenance.
S7012 ACD/P4A Bearing Model Code Explained, Specifications & Naming Convention
| Suffix Code | Technical Meaning |
|---|---|
| ACD | Indicates a 25° contact angle and a specific internal design optimized for high rigidity and precise axial positioning. |
| P4A | Denotes the tolerance class P4 (ABEC-7), signifying very high precision levels for dimensional and running accuracy. |
S7012 ACD/P4A Bearing Structural Features & Performance Benefits
- High Rigidity and Precision: The 25° contact angle and P4 tolerance class ensure high system rigidity and exceptional running accuracy, critical for precision spindles.
- Optimized Load Capacity: Designed to handle combined radial and axial loads simultaneously. The dynamic load rating of 8775 lbf and static load rating of 7538 lbf provide reliable performance under demanding conditions.
- Superior High-Speed Performance: The lightweight phenolic resin cage minimizes centrifugal forces, contributing to a high limiting speed of 13,000 rpm.
- Sealed and Lubricated for Life: As a sealed bearing that is pre-lubricated, it is protected from contamination and is designed for long-term, maintenance-free operation within its specified temperature range.
S7012 ACD/P4A Bearing Typical Application Areas
This precision angular contact bearing is ideally suited for:
- Machine Tool Spindles
- High-Frequency Motors
- Precision Grinding Equipment
- Medical and Dental Handpieces
- Aerospace Control Systems
