7005 ACD/P4A
7000 Series Super Precision Angular Contact Ball Bearings
Image may differ from product. See technical specification for details.
Part No.
Part No.
7005 ACD/P4A
Basic Information
System of measurement
Metric
Weight
0.079 kg
Tolerance class
P4 (ABEC-7)
Seal type
Open
For load direction
Angular Contact
Main Dimensions
Bore diameter
25 mm
Bore diameter tolerance
-0.005mm to 0
Outside diameter
47 mm
Outside diameter tolerance
-0.006mm 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° to 110 °C
Radial dynamic load rating
2077 lbf
Radial static load rating
1125 lbf
Limiting speed
50 X 1000 rpm
Lubrication
Lubricated
Matched arrangement
Single
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
Price:
$ 64.59
/ each
In Stock
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7005 ACD/P4A Bearing Product Overview & Core Advantages
The 7005 ACD/P4A is a single-row angular contact ball bearing designed for applications requiring exceptional precision and high-speed performance. Engineered to P4 (ABEC-7) tolerance class, it delivers superior running accuracy and rotational stability. Its key advantage lies in its ability to support combined loads, efficiently carrying significant radial loads and axial loads in one direction simultaneously. The 25° contact angle optimizes this axial load capacity, making it an ideal choice for high-rigidity, precision spindle arrangements where space is constrained.
7005 ACD/P4A Bearing Model Code Explained, Specifications & Naming Convention
| Suffix | Technical Meaning |
|---|---|
| ACD | Indicates a 25° contact angle and that the bearing is designed for a specific Duplex (Matched) arrangement. The "D" typically signifies a pre-set axial clearance or preload when mounted with a similar bearing. |
| P4A | Denotes the tolerance class P4 (ABEC-7), a high-precision grade. The "A" suffix may refer to specific dimensional or running accuracy requirements within the P4 class. |
7005 ACD/P4A Bearing Structural Features & Performance Benefits
- High Rigidity & Precision: Manufactured to P4 tolerance class with a phenolic resin cage, this bearing ensures minimal vibration and high running accuracy, which is critical for machine tool spindles and other precision equipment.
- Optimized Load Capacity: The 25° contact angle is engineered to handle substantial combined radial and axial loads efficiently. With a dynamic load rating of 2077 lbf and a static load rating of 1125 lbf, it offers reliable performance under demanding conditions.
- Superior High-Speed Performance: The lightweight phenolic cage and optimized internal geometry contribute to a high limiting speed of 50,000 rpm, making it suitable for high-speed applications.
- Pre-Lubricated & Ready-to-Use: The bearing comes lubricated from the factory, ensuring immediate operation and reducing initial setup time.
7005 ACD/P4A Bearing Typical Application Areas
This precision angular contact bearing is ideally suited for:
- Machine Tool Spindles (High-speed machining centers, grinding spindles)
- Precision Gearboxes
- High-Frequency Motors
- Medical and Dental Equipment
- Aerospace Instrumentation
