S7012 CE/P4ADBB
Sealed Super Precision Angular Contact Ball Bearings
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Part No.
Part No.
S7012 CE/P4ADBB
Basic Information
System of measurement
Metric
Weight
0.86 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
7.938 mm
Ball quantity
25
Performance
Temperature range
- 30°C to 110 °C
Radial dynamic load rating
6210 lbf
Radial static load rating
5738 lbf
Limiting speed
36 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 CE/P4ADBB Bearing Product Overview & Core Advantages
The S7012 CE/P4ADBB is a precision duplex angular contact ball bearing designed for applications demanding exceptional rotational accuracy and rigidity. This matched back-to-back arrangement is preloaded to Light / Class B standards, providing superior system stiffness and minimizing axial and radial runout. Its primary advantage lies in its ability to handle combined loads (radial and axial) simultaneously with high precision, making it ideal for high-speed spindles and other critical machinery components where stability is paramount.
S7012 CE/P4ADBB Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| S7012 | Basic bearing series, indicating a 60 mm bore, 95 mm OD, and 36 mm width. |
| CE | Indicates a duplex bearing set with a specific preload and tolerance class. |
| P4A | Denotes a very high precision tolerance class, superior to ABEC 7, ensuring minimal dimensional variation. |
| DB | Specifies the Back-to-Back (DB) matched arrangement, which provides high moment rigidity. |
S7012 CE/P4ADBB Bearing Structural Features & Performance Benefits
- High Rigidity & System Stability: The duplex back-to-back (DB) arrangement and light preload create a highly rigid bearing system that effectively resists moment loads and maintains precise shaft positioning.
- Superior Precision: Manufactured to P4A tolerance class with tight bore, outside diameter, and width tolerances, this bearing guarantees exceptional running accuracy for high-performance applications.
- Optimized for High Speeds: The phenolic resin cage is lightweight and robust, contributing to lower centrifugal forces and enabling a high limiting speed of 36,000 rpm. The 15° contact angle provides an excellent balance between radial and axial load capacity.
- Durable Construction: Made from chrome steel for both rings and balls, the bearing offers high fatigue life and wear resistance. The standard grease lubrication is suitable for a wide temperature range from -30°C to 110°C.
S7012 CE/P4ADBB Bearing Typical Application Areas
This bearing is specifically engineered for high-precision, high-speed machinery, including:
- Machine Tool Spindles: For CNC machining centers, grinding spindles, and milling heads.
- High-Frequency Motors & Spindles: Where minimal runout and high rotational accuracy are critical.
- Precision Instrumentation: Used in measuring devices and laboratory equipment.
- Robotics: In high-accuracy rotary joints and arm assemblies.
