7012 CD/P4ADBG90
7000 Series Super Precision Angular Contact Ball Bearings
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Part No.
Part No.
7012 CD/P4ADBG90
Basic Information
System of measurement
Metric
Weight
0.81 kg
Tolerance class
P4A
Seal type
Open
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
34 X 1000 rpm
Lubrication
Lubricated
Matched arrangement
Duplex Back-to-Back (DB)
Number of bearings in matched set
2
Universal matching bearing
No (Standard)
Preload
Available
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.
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7012 CD/P4ADBG90 Bearing Product Overview & Core Advantages
The 7012 CD/P4ADBG90 is a high-precision duplex angular contact ball bearing designed for demanding applications requiring exceptional rigidity and accuracy. This matched set features a Back-to-Back (DB) arrangement, providing superior stability and the ability to withstand combined loads (radial and axial loads from both directions). Manufactured to a P4A tolerance class, it guarantees ultra-precise running accuracy and high-speed capability, making it an ideal solution for high-performance spindles and precision machinery.
7012 CD/P4ADBG90 Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 7012 | Basic bearing series, indicating a 60 mm bore, 95 mm OD, and 36 mm width. |
| CD | Specifies a duplex bearing with a Back-to-Back (DB) arrangement and a specific preload level. |
| P4A | Indicates an ultra-high precision tolerance class, superior to ABEC 7, ensuring minimal runout and vibration. |
| DB | Confirms the Back-to-Back mounting of the two bearings in the set. |
| G90 | Specifies the axial internal clearance group for the set. |
7012 CD/P4ADBG90 Bearing Structural Features & Performance Benefits
- High Rigidity & Stability: The duplex Back-to-Back (DB) design creates a wide, rigid support system that effectively resists overturning moments, making it exceptionally stable under combined loads.
- Superior Load Capacity: Engineered with a 15° contact angle, this bearing is optimized to handle significant axial loads in both directions simultaneously with high radial load capacity.
- High-Speed Performance: The lightweight and robust phenolic resin cage minimizes centrifugal forces, reduces friction, and contributes to the high limiting speed of 34,000 rpm. The open design and factory-applied lubrication facilitate optimal heat dissipation.
- Precision Engineering: The P4A tolerance class and tight dimensional tolerances on the bore, outside diameter, and width ensure precise shaft positioning, smooth operation, and extended service life in precision applications.
7012 CD/P4ADBG90 Bearing Typical Application Areas
This bearing is specifically designed for high-performance machinery where precision, speed, and rigidity are critical. Key applications include:
- Machine Tool Spindles: High-speed milling, grinding, and turning centers.
- Precision Spindles: PCB drilling machines, high-frequency motor spindles.
- Robotics: High-accuracy robotic arm joints and rotary units.
- Medical Equipment: Dental handpieces, high-speed centrifuges.
- Aerospace Test Rigs: Precision positioning systems and gyroscopes.
