7011 CE/P4ADBB
7000 Series Super Precision Angular Contact Ball Bearings
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Part No.
Part No.
7011 CE/P4ADBB
Basic Information
System of measurement
Metric
Weight
0.78 kg
Tolerance class
P4A
Seal type
Open
For load direction
Angular Contact
Main Dimensions
Bore diameter
55 mm
Bore diameter tolerance
-0.004mm to 0
Outside diameter
90 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
24
Performance
Temperature range
- 30°C to 110 °C
Radial dynamic load rating
6210 lbf
Radial static load rating
5512 lbf
Limiting speed
39 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
Light / Class B
Materials
Ring material
Chrome Steel
Ball material
Chrome Steel
Cage material
Phenolic
Technical Drawings
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7011 CE/P4ADBB Bearing Product Overview & Core Advantages
The 7011 CE/P4ADBB is a precision duplex angular contact ball bearing designed for applications requiring exceptional rotational accuracy and rigidity. This back-to-back (DB) matched pair is preloaded to Light / Class B specifications, providing high system stiffness and precise shaft positioning. It excels at handling combined loads (radial and axial) simultaneously, making it an ideal choice for high-speed, high-precision machinery where uncompromising performance is critical.
7011 CE/P4ADBB Bearing Model Code Explained, Specifications & Naming Convention
The model number 7011 CE/P4ADBB is decoded as follows:
- 7011: Basic bearing series, indicating a 55mm bore, 90mm OD, and 36mm width.
- C: Denotes a 15° contact angle, optimized for high-speed applications with significant axial loads.
- E: Indicates optimized internal design, typically for improved performance and load capacity.
- P4A: Specifies a high-precision tolerance class superior to ABEC 7, ensuring minimal runout and vibration.
- DB: Stands for Duplex Back-to-Back arrangement, increasing moment rigidity and stability.
- B: Indicates the specific Light preload applied to the matched set.
7011 CE/P4ADBB Bearing Structural Features & Performance Benefits
- High Rigidity & Stability: The back-to-back duplex arrangement and light preload create a highly rigid bearing system that effectively resists moment loads and maintains precise shaft alignment under operational stresses.
- Superior Load Capacity: With a 15° contact angle and robust construction, this bearing is engineered to handle significant combined radial and axial loads efficiently.
- High-Speed Performance: The phenolic resin cage offers low weight and excellent high-speed characteristics, contributing to a high limiting speed of 39,000 rpm. The optimized internal geometry further enhances high-speed capability.
- Precision & Accuracy: Manufactured to a P4A tolerance class, this bearing guarantees minimal running noise and vibration, which is crucial for applications demanding extreme rotational accuracy.
- Material Quality: Manufactured from high-grade chrome steel for both rings and balls, ensuring long service life and consistent performance under demanding conditions.
7011 CE/P4ADBB Bearing Typical Application Areas
This precision bearing is ideally suited for:
- Machine Tool Spindles: High-speed milling, grinding, and turning centers.
- Precision Gearboxes and High-Frequency Motors.
- Industrial Pumps and Compressors requiring high shaft rigidity.
- Aerospace & Defense instrumentation and control systems.
- Medical Equipment such as high-speed dental handpieces and imaging devices.
