7005/VA9D1
7000 Series Super Precision Angular Contact Ball Bearings
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Part No.
Part No.
7005/VA9D1
Basic Information
System of measurement
Metric
Weight
0.079 kg
Tolerance class
P4
Seal type
Open
For load direction
Angular Contact
Main Dimensions
Bore diameter
25 mm
Bore diameter tolerance
-0.004mm to 0
Outside diameter
47 mm
Outside diameter tolerance
-0.004mm to 0
Width
12 mm
Width tolerance
-0.2mm to 0
Contact angle
25 °
Ball & Washer Dimensions
Ball diameter
6.35 mm
Ball quantity
14
Performance
Temperature range
- 30°C to 110 °C
Radial dynamic load rating
2077 lbf
Radial static load rating
1125 lbf
Limiting speed
85 X 1000 rpm
Lubrication
Lubricated
Matched arrangement
Single
Number of bearings in matched set
2
Universal matching bearing
Universal Matchable (SU)
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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7005/VA9D1 Bearing Product Overview & Core Advantages
The 7005/VA9D1 is a precision angular contact ball bearing designed for applications requiring exceptional rotational accuracy and high-speed performance. Manufactured to P4 tolerance class, it delivers superior running precision. Its key advantage lies in its ability to accommodate combined loads (radial and axial) simultaneously, making it ideal for high-rigidity applications. The bearing is pre-lubricated and features a universal matching (SU) designation, allowing for precise matched arrangement in pairs to optimize preload and system stiffness.
7005/VA9D1 Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 7005 | Basic bearing series, indicating a 25mm bore, 47mm OD, and 12mm width. |
| V | Indicates the bearing is part of a universally matchable (SU) set. |
| A9D1 | Specifies a 25° contact angle and a specific preload level applied to the bearing. |
7005/VA9D1 Bearing Structural Features & Performance Benefits
- High Rigidity & Load Capacity: The angular contact design and 25° contact angle provide high resistance to combined radial and axial loads, ensuring stable operation under demanding conditions.
- High-Speed Performance: The lightweight phenolic resin cage minimizes centrifugal forces, contributing to the high limiting speed of 85,000 rpm. The optimized internal geometry further enhances high-speed capability.
- Precision Engineering: Manufactured to ABEC 7 / P4 tolerance class with tight dimensional tolerances on bore, OD, and width, guaranteeing exceptional running accuracy and system performance.
- Preload & Matched Sets: The bearing is supplied with a defined preload and is universally matchable (SU). This allows for the creation of precisely matched duplex pairs (back-to-back or face-to-face) to achieve the exact level of preload and system stiffness required for the application.
- Material Quality: Components made from high-grade chrome steel ensure high durability and long service life under high-stress conditions.
7005/VA9D1 Bearing Typical Application Areas
This precision angular contact ball bearing is ideally suited for high-performance applications, including:
- Machine Tool Spindles
- High-Frequency Spindles for PCB drilling and routing
- Precision Grinding Spindles
- High-Speed Automation Equipment
- Medical and Dental Handpiece Drives
- Turbocharger Compressor Shafts
