S7012 CD/P4ADBC
Sealed Super Precision Angular Contact Ball Bearings
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Basic Information
Main Dimensions
Ball & Washer Dimensions
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S7012 CD/P4ADBC Bearing Product Overview & Core Advantages
The S7012 CD/P4ADBC is a precision duplex pair of angular contact ball bearings designed for high-performance applications. This back-to-back (DB) arrangement provides exceptional system rigidity and the ability to withstand combined radial and axial loads from both directions. Manufactured to P4A tolerance class and preloaded for moderate stiffness (Class C), this matched set delivers outstanding running accuracy, high-speed capability, and reliable operation in demanding environments.
S7012 CD/P4ADBC Bearing Model Code Explained, Specifications & Naming Convention
- S7012: Basic bearing series, indicating a 60mm bore, 95mm OD, and 36mm width.
- C: 15° contact angle, optimized for handling significant axial loads.
- D: Indicates the bearing is part of a duplex pair (two bearings mounted together).
- P4A: Super-precision tolerance class, ensuring extremely tight dimensional and running accuracy for high-speed, high-rigidity applications.
- DB: Duplex Back-to-Back mounting arrangement. This configuration provides high moment rigidity and is ideal for supporting overturning moments.
- C: Specifies a moderate preload (Class C), which increases system stiffness and improves rotational accuracy.
S7012 CD/P4ADBC Bearing Structural Features & Performance Benefits
High Rigidity & Load Capacity: The duplex back-to-back (DB) design creates a wide, stable support system that significantly increases moment stiffness. This allows the bearing set to effectively handle combined loads and challenging operational conditions.
Precision & High-Speed Performance: Built to P4A super-precision standards and featuring a lightweight, robust phenolic resin cage, this bearing achieves smooth operation and a high limiting speed of 31,000 rpm. The 15° contact angle provides an excellent balance between radial and axial load capacity.
Optimized for Performance: The bearings are universally matched and supplied as a pre-set pair, ensuring optimal load distribution and simplifying installation. The chrome steel construction of rings and balls ensures high durability and long service life under demanding conditions.
S7012 CD/P4ADBC Bearing Typical Application Areas
This high-precision, high-rigidity bearing set is ideally suited for applications requiring exceptional accuracy and stiffness, including:
- Machine Tool Spindles (High-speed milling, grinding, and turning centers)
- Precision Grinding Spindles
- High-Frequency Machining Centers
- Industrial Pumps and Compressors
- Robotic Arm Precision Joints
