S7012 CD/P4ADBB
Sealed Super Precision Angular Contact Ball Bearings
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Part No.
Part No.
S7012 CD/P4ADBB
Basic Information
System of measurement
Metric
Weight
0.82 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
36 mm
Width tolerance
-0.2mm to 0
Contact angle
15 °
Ball & Washer Dimensions
Ball diameter
11.112 mm
Ball quantity
19
Performance
Temperature range
- 30°C to 110 °C
Radial dynamic load rating
14918 lbf
Radial static load rating
15638 lbf
Limiting speed
31 X 1000 rpm
Lubrication
Grease
Matched arrangement
Duplex Back-to-Back (DB)
Number of bearings in matched set
2
Universal matching bearing
No (Standard)
Preload
Light / Class B
Materials
Ring material
Chrome Steel
Ball material
Chrome Steel
Cage material
Phenolic
Technical Drawings
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In Stock
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S7012 CD/P4ADBB Bearing Product Overview & Core Advantages
The S7012 CD/P4ADBB is a precision duplex angular contact ball bearing designed for high-performance applications requiring exceptional rigidity and accuracy. This back-to-back (DB) matched set features a P4A tolerance class and light preload (Class B), making it ideal for machine tool spindles and other precision machinery where superior running accuracy and high rigidity are critical. Its configuration enables it to handle combined loads effectively, including significant radial and bidirectional axial loads.
S7012 CD/P4ADBB Bearing Model Code Explained, Specifications & Naming Convention
The model number S7012 CD/P4ADBB is decoded as follows:
- S7012: Denotes a 60mm bore diameter, 95mm outside diameter angular contact ball bearing.
- C: Represents a 15° contact angle, optimized for high-speed operation and axial load capacity.
- D: Indicates the bearing is part of a duplex (paired) set.
- P4A: Specifies an ultra-precision tolerance class superior to ABEC 7, ensuring minimal runout and vibration.
- DB: Stands for Duplex Back-to-Back arrangement. This configuration provides high moment rigidity and excellent stability under complex loads.
- B: Indicates a light preload (Class B), which minimizes deflection and ensures precise rotational performance from startup.
S7012 CD/P4ADBB Bearing Structural Features & Performance Benefits
- High Rigidity & Stability: The back-to-back duplex arrangement creates a wide, rigid support system that effectively resists moment loads and shaft deflection, which is crucial for maintaining precision in machining operations.
- Superior Load Capacity: With a 15° contact angle and a dynamic load rating of 14,918 lbf, this bearing set is engineered to handle demanding combined radial and axial loads.
- High-Speed Performance: The phenolic resin cage offers low weight and excellent performance at high speeds, contributing to a limiting speed of 31,000 rpm. The light preload further enhances high-speed capability by controlling ball skidding.
- Precision & Accuracy: Manufactured to P4A tolerance standards with tight dimensional control on bore, outside diameter, and width, this bearing ensures minimal runout for superior rotational accuracy.
- Sealed & Pre-Lubricated: The bearing is sealed and pre-lubricated with grease, protecting against contamination and providing reliable operation within its specified temperature range of -30°C to 110°C.
S7012 CD/P4ADBB Bearing Typical Application Areas
The S7012 CD/P4ADBB is ideally suited for high-precision, high-speed applications, including:
- Machine Tool Spindles (e.g., CNC milling, grinding, and turning centers)
- High-Frequency Motors and Precision Gearboxes
- Industrial Pumps and Compressors
- Precision Measuring Instruments and Robotic Arms
