7011 CE/P4ATT
7000 Series Super Precision Angular Contact Ball Bearings
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Part No.
Part No.
7011 CE/P4ATT
Basic Information
System of measurement
Metric
Weight
1.18 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
54 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
8190 lbf
Radial static load rating
8212 lbf
Limiting speed
34 X 1000 rpm
Lubrication
Lubricated
Matched arrangement
Triplex Tandem (3-DT)
Number of bearings in matched set
3
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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7011 CE/P4ATT Bearing Product Overview & Core Advantages
The 7011 CE/P4ATT is a precision angular contact ball bearing designed for demanding applications requiring exceptional rigidity and accuracy. This bearing features a triplex tandem (3-DT) matched arrangement, providing superior axial load capacity and system stiffness. Manufactured to P4A tolerance class, it ensures high running accuracy and is pre-lubricated for immediate use. Its compact design and 15° contact angle make it ideal for high-speed, high-precision spindles and other critical machinery.
7011 CE/P4ATT Bearing Model Code Explained, Specifications & Naming Convention
The model number 7011 CE/P4ATT provides detailed technical specifications:
- 7011: Basic bearing series, indicating a 55 mm bore, 90 mm OD, and 54 mm width.
- C: Denotes a 15° contact angle.
- E: Indicates optimized internal design for enhanced performance.
- P4A: Specifies the tolerance class, representing very high precision levels for both dimensional and running accuracy.
- T: Refers to the phenolic resin cage.
- T (second occurrence): Indicates the bearing is part of a triplex tandem (3-DT) matched set.
7011 CE/P4ATT Bearing Structural Features & Performance Benefits
- High Rigidity & Load Capacity: The triplex tandem arrangement of three bearings enables the set to withstand significant combined loads, primarily heavy thrust loads in one direction, while maintaining exceptional system stiffness.
- Precision Performance: Manufactured to ABEC 7 / P4A tolerance standards, this bearing ensures minimal runout and vibration, which is critical for high-speed applications.
- High-Speed Capability: The lightweight phenolic resin cage and optimized internal geometry contribute to lower centrifugal forces, allowing for a high limiting speed of 34,000 rpm.
- Preload & Matched Set: The bearings are supplied as a pre-loaded, matched set of three, ensuring immediate optimal performance, simplified installation, and consistent bearing dimensions across the set.
- Durability: Constructed from chrome steel for both rings and balls, providing high wear resistance and long service life under demanding conditions.
7011 CE/P4ATT Bearing Typical Application Areas
This bearing is engineered for high-performance machinery where precision, speed, and rigidity are paramount. Key applications include:
- Machine Tool Spindles: High-speed milling, grinding, and turning centers.
- Precision Spindles: PCB drilling machines and other high-precision automated equipment.
- High-Frequency Motors: Spindles for applications requiring extreme rotational accuracy.
