7011 ACD/P4ADGB
7000 Series Super Precision Angular Contact Ball Bearings
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Part No.
Part No.
7011 ACD/P4ADGB
Basic Information
System of measurement
Metric
Weight
0.76 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
11.112 mm
Ball quantity
18
Performance
Temperature range
- 30°C to 110 °C
Radial dynamic load rating
13612 lbf
Radial static load rating
13950 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
Light / Class B
Materials
Ring material
Chrome Steel
Ball material
Chrome Steel
Cage material
Phenolic
Technical Drawings
No drawings available at the moment, will be launched soon
Price:
$ 226.01
/ each
In Stock
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7011 ACD/P4ADGB Bearing Product Overview & Core Advantages
The 7011 ACD/P4ADGB is a high-precision angular contact ball bearing designed for demanding applications requiring exceptional rotational accuracy and rigidity. As part of a universally matchable (SU) set, this bearing is engineered to accommodate combined loads—simultaneously handling significant radial and axial loads. Its P4A tolerance class ensures ultra-precision, making it ideal for high-speed spindles and other precision machinery where minimal runout and high operational reliability are critical.
7011 ACD/P4ADGB Bearing Model Code Explained, Specifications & Naming Convention
| Suffix Code | Technical Meaning |
|---|---|
| ACD | Angular Contact Design with a 25° contact angle, optimized for high axial load capacity. |
| P4A | Indicates an ultra-precision tolerance class with enhanced running accuracy for high-speed applications. |
| DGB | Signifies a Universal Matchable (SU) pair, where two bearings are selectively paired to provide optimal preload and stiffness when mounted together. |
7011 ACD/P4ADGB Bearing Structural Features & Performance Benefits
- High Rigidity & Load Capacity: The angular contact design with a 25° contact angle and dual-bearing universal match (SU) arrangement provides superior stiffness, enabling stable performance under combined radial and axial loads.
- Precision & High-Speed Performance: Manufactured to P4A tolerance standards and featuring a lightweight phenolic cage, this bearing achieves a high limiting speed of 34,000 rpm, reducing centrifugal forces and maintaining accuracy at high velocities.
- Optimized Material Selection: Components made from chrome steel for rings and balls ensure high durability and fatigue resistance, while the phenolic cage contributes to smooth operation and reduced friction.
- Preload & Matching: Supplied as a universally matchable set with light preload (Class B), facilitating easy installation and immediate optimal performance without additional adjustment.
7011 ACD/P4ADGB Bearing Typical Application Areas
The 7011 ACD/P4ADGB is engineered for high-performance applications, including:
- Machine Tool Spindles
- High-Speed Machining Centers
- Precision Grinding Spindles
- Industrial Pumps and Compressors
- Robotic Arm Joints and Precision Rotary Systems
