S71912 ACEGA/P4A
Sealed Super Precision Angular Contact Ball Bearings
Image may differ from product. See technical specification for details.
Part No.
Part No.
S71912 ACEGA/P4A
Basic Information
System of measurement
Metric
Weight
0.19 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
85 mm
Outside diameter tolerance
-0.004mm to 0
Width
13 mm
Width tolerance
-0.2mm to 0
Contact angle
25 °
Ball & Washer Dimensions
Ball diameter
7.938 mm
Ball quantity
23
Performance
Temperature range
- 30°C to 110 °C
Radial dynamic load rating
3442 lbf
Radial static load rating
2475 lbf
Limiting speed
32.5 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
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
S71912 ACEGA/P4A Bearing Product Overview & Core Advantages
The S71912 ACEGA/P4A is a precision angular contact ball bearing designed for high-performance applications requiring exceptional accuracy and reliability. This single bearing features an Extra light preload (Class A) and belongs to the stringent P4A tolerance class, making it ideal for machine tool spindles and other high-precision machinery. Its 25° contact angle is optimized to handle significant combined loads—simultaneously supporting radial and axial forces—while its compact design offers a superior solution where space and precision are critical.
S71912 ACEGA/P4A Bearing Model Code Explained, Specifications & Naming Convention
The model number S71912 ACEGA/P4A provides detailed technical specifications through its suffixes:
- S: Denotes a bearing with a super-precision level.
- 7: Indicates an angular contact ball bearing design.
- 1912: Specifies the size series, with a 60 mm bore diameter.
- AC: Stands for a 25° contact angle, optimized for high axial load capacity.
- E: Refers to an optimized internal design for enhanced performance.
- GA: Indicates a universally matchable (SU) bearing, allowing for flexible arrangement in sets.
- P4A: Specifies the tolerance class, representing extremely high dimensional and running accuracy.
S71912 ACEGA/P4A Bearing Structural Features & Performance Benefits
- High Rigidity & Precision: Manufactured to P4A tolerance class standards, this bearing ensures minimal runout and vibration, providing stable and precise rotational performance essential for high-speed applications.
- Superior Load Capacity: The 25° contact angle and robust construction enable it to efficiently handle combined radial and axial loads, with a dynamic load rating of 3442 lbf and a static load rating of 2475 lbf.
- Optimized High-Speed Performance: The phenolic resin cage reduces friction and weight, contributing to a high limiting speed of 32,500 rpm. Pre-lubrication with grease ensures reliable operation at these speeds.
- Sealed & Ready-to-Use: As a sealed bearing, it is protected from contamination and comes pre-lubricated, offering long service life with minimal maintenance in clean operating environments.
- Universal Matching Capability: The Universal Matchable (SU) designation allows two bearings to be paired in a back-to-back or face-to-face arrangement without selective matching, simplifying installation and improving system rigidity.
S71912 ACEGA/P4A Bearing Typical Application Areas
This bearing is ideally suited for high-precision, high-speed applications, including:
- Machine Tool Spindles
- Precision Grinding Spindles
- High-Frequency Motors
- Medical and Dental Equipment
- Aerospace Control Systems
- Optical and Measuring Instruments
