7011 ACE/P4ADGA
7000 Series Super Precision Angular Contact Ball Bearings
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Part No.
Part No.
7011 ACE/P4ADGA
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
25 °
Ball & Washer Dimensions
Ball diameter
7.938 mm
Ball quantity
24
Performance
Temperature range
- 30°C to 110 °C
Radial dynamic load rating
5850 lbf
Radial static load rating
5220 lbf
Limiting speed
34 X 1000 rpm
Lubrication
Lubricated
Matched arrangement
Universal Matchable (SU)
Number of bearings in matched set
2
Universal matching bearing
Universal Matchable (SU)
Preload
Extra light / Class A
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
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7011 ACE/P4ADGA Bearing Product Overview & Core Advantages
The 7011 ACE/P4ADGA is a precision angular contact ball bearing designed for applications demanding exceptional accuracy and reliability. Engineered to a P4A tolerance class, it offers superior running precision. Its defining characteristic is the ability to accommodate combined radial and axial loads simultaneously. The Universal Matchable (SU) designation allows two bearings to be universally paired in a back-to-back (DB), face-to-face (DF), or tandem (DT) arrangement, providing exceptional design flexibility for achieving optimal system rigidity and load capacity in a compact envelope.
7011 ACE/P4ADGA Bearing Model Code Explained, Specifications & Naming Convention
| Suffix Code | Technical Meaning |
|---|---|
| ACE | A 25° contact angle and an Extra light (A) preload. This combination is optimized for high-speed operation and high rigidity. |
| P4A | Indicates a high-precision tolerance class with enhanced running accuracy requirements, superior to ABEC 7 (P4). |
| DGA | Specifies a Universal Matchable (SU) bearing. Two bearings with this suffix can be universally matched in any arrangement without performance loss. |
7011 ACE/P4ADGA Bearing Structural Features & Performance Benefits
- High Rigidity and Precision: Manufactured to P4A tolerance standards with an Extra light preload, this bearing ensures minimal runout and superior positional accuracy, making it ideal for high-precision spindles.
- Optimized Load Capacity: The 25° contact angle is engineered to efficiently support significant combined radial and axial loads.
- High-Speed Capability: The lightweight phenolic resin cage reduces centrifugal forces, enabling stable operation at the high limiting speed of 34,000 rpm. The open design facilitates efficient lubrication management.
- Universal Matching Flexibility: The SU (Universal Matchable) feature allows for simplified inventory and assembly, as any two bearings can be paired to create a pre-loaded set for enhanced system stiffness.
7011 ACE/P4ADGA Bearing Typical Application Areas
This bearing is specified for high-performance machinery where precision, speed, and rigidity are paramount. Key applications include:
- Machine Tool Spindles (High-speed milling, grinding)
- Precision Grinding Spindles
- High-Frequency Motors
- Industrial Pumps and Compressors
- Advanced Robotics and Automation
