7010 ACD/P4ADFB
7000 Series Super Precision Angular Contact Ball Bearings
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Part No.
Part No.
7010 ACD/P4ADFB
Basic Information
System of measurement
Metric
Weight
0.51 kg
Tolerance class
P4A
Seal type
Open
For load direction
Angular Contact
Main Dimensions
Bore diameter
50 mm
Bore diameter tolerance
-0.004mm to 0
Outside diameter
80 mm
Outside diameter tolerance
-0.004mm to 0
Width
32 mm
Width tolerance
-0.2mm to 0
Contact angle
25 °
Ball & Washer Dimensions
Ball diameter
9.525 mm
Ball quantity
18
Performance
Temperature range
- 30°C to 110 °C
Radial dynamic load rating
10395 lbf
Radial static load rating
10462 lbf
Limiting speed
46 X 1000 rpm
Lubrication
Lubricated
Matched arrangement
Duplex Face-to-Face (DF)
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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7010 ACD/P4ADFB Bearing Product Overview & Core Advantages
The 7010 ACD/P4ADFB is a duplex pair of precision angular contact ball bearings configured in a Face-to-Face (DF) arrangement. This matched set is engineered for applications requiring high rigidity and exceptional running accuracy under combined radial and axial loads. Manufactured to a P4A tolerance class, it delivers superior rotational precision and is pre-lubricated for immediate use, making it ideal for high-performance, high-reliability machinery.
7010 ACD/P4ADFB Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 7010 | Basic bearing designation (50mm bore, 80mm OD). |
| AC | Angular Contact design with a 25° contact angle. |
| D | Duplex pair (Two bearings supplied as a matched set). |
| P4A | High precision tolerance class, exceeding ABEC-7 standards. |
| DF | Face-to-Face mounting arrangement. |
| B | Light preload / Class B. |
7010 ACD/P4ADFB Bearing Structural Features & Performance Benefits
- High Rigidity & Load Capacity: The duplex DF arrangement creates a highly rigid bearing system capable of supporting significant combined loads from any direction. The 25° contact angle is optimized for handling substantial axial loads in both directions.
- Precision & High-Speed Performance: Manufactured to P4A tolerance with a phenolic cage, this bearing ensures smooth operation, low vibration, and low heat generation, contributing to a high limiting speed of 46,000 rpm.
- Optimized Internal Geometry: With 18 precision balls and a calculated ball diameter, the internal design minimizes friction and maximizes dynamic and static load ratings (10,395 lbf / 10,462 lbf).
- Ready-to-Install: The set is pre-lubricated and comes with a light preload (Class B), simplifying installation and ensuring immediate, optimal performance without additional adjustment.
7010 ACD/P4ADFB Bearing Typical Application Areas
This precision bearing set is ideally suited for demanding applications in:
- Machine Tool Spindles (High-speed machining centers, grinding spindles)
- Precision Gearboxes and Robotic Drives
- High-Frequency Motors and Spindle Drives
- Medical Equipment and Optical Instrumentation
