S7012 ACDGA/P4A
Sealed Super Precision Angular Contact Ball Bearings
Image may differ from product. See technical specification for details.
Part No.
Part No.
S7012 ACDGA/P4A
Basic Information
System of measurement
Metric
Weight
0.41 kg
Tolerance class
P4A
Seal type
Sealed
For load direction
Angular Contact
Main Dimensions
Bore diameter
60 mm
Bore diameter tolerance
-0.004mm to 0
Outside diameter
95 mm
Outside diameter tolerance
-0.004mm 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°C to 110 °C
Radial dynamic load rating
8775 lbf
Radial static load rating
7538 lbf
Limiting speed
32.5 X 1000 rpm
Lubrication
Grease
Matched arrangement
Single
Number of bearings in matched set
3
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
Price:
$ 101.88
/ each
In Stock
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S7012 ACDGA/P4A Bearing Product Overview & Core Advantages
The S7012 ACDGA/P4A is a super-precision angular contact ball bearing designed for applications demanding the highest levels of accuracy, rigidity, and speed. As a single bearing with a 25° contact angle and Extra Light preload (Class A), it provides exceptional running accuracy and stiffness. Its P4A tolerance class ensures superior dimensional and running precision, making it ideal for high-performance spindles and other high-speed, high-rigidity applications where managing combined loads is critical.
S7012 ACDGA/P4A Bearing Model Code Explained, Specifications & Naming Convention
The model number S7012 ACDGA/P4A is decoded as follows:
- S70: Series designation for high-precision angular contact ball bearings.
- 12: Bore diameter code, corresponding to a 60 mm bore.
- AC: Angular Contact design.
- D: Contact angle of 25°.
- GA: Preload class - Extra Light (Class A).
- P4A: Tolerance class exceeding ABEC 7/ISO P4, indicating ultra-precise manufacturing standards for both dimension and running accuracy.
S7012 ACDGA/P4A Bearing Structural Features & Performance Benefits
- High Rigidity and Precision: The bearing's design, combined with the Extra Light preload (Class A), eliminates internal clearance, providing high system rigidity and superior rotational accuracy essential for precision machining.
- Optimized for Combined Loads: The 25° contact angle effectively supports significant radial loads and axial loads in one direction, making it highly efficient for combined load conditions.
- Superior High-Speed Performance: The Phenolic (resin) cage is lightweight and robust, contributing to lower centrifugal forces, reduced friction, and higher limiting speeds (up to 32,500 rpm). The standard grease lubrication is optimized for this performance.
- Universal Matching Capability (SU): This bearing is Universal Matchable, allowing it to be mounted in sets (back-to-back, face-to-face, or tandem) with other universal match bearings to create a preloaded arrangement without the need for selective assembly, simplifying installation and enhancing system performance.
S7012 ACDGA/P4A Bearing Typical Application Areas
The S7012 ACDGA/P4A is engineered for the most demanding applications, including:
- Machine Tool Spindles: High-speed milling, grinding, and turning centers.
- Precision Spindles: For PCB drilling, semiconductor manufacturing, and other high-accuracy processes.
- High-Frequency Motors: Where minimal runout and high-speed capability are paramount.
- Robotics: Precision joints and arm assemblies requiring high rigidity and accuracy.
