7005 ACDGA/P4A
7000 Series Super Precision Angular Contact Ball Bearings
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Part No.
Part No.
7005 ACDGA/P4A
Basic Information
System of measurement
Metric
Weight
0.079 kg
Tolerance class
P4A
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
3
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
Price:
$ 64.59
/ each
In Stock
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7005 ACDGA/P4A Bearing Product Overview & Core Advantages
The 7005 ACDGA/P4A is a high-precision angular contact ball bearing designed for applications demanding exceptional rotational accuracy and rigidity. Manufactured to P4A tolerance class, this bearing delivers superior running precision. Its 25° contact angle is optimized to support significant combined loads, handling both radial and axial forces simultaneously. The phenolic cage and universal matching (SU) designation make it ideal for high-speed spindle arrangements and other high-rigidity, precision applications.
7005 ACDGA/P4A Bearing Model Code Explained, Specifications & Naming Convention
| Suffix | Technical Meaning |
|---|---|
| AC | Angular Contact design with a 25° contact angle. |
| DGA | Duplex arrangement, Ground backs, and Extra light preload (Class A). |
| P4A | Super Precision Tolerance Class, with running accuracy requirements tighter than ABEC 7. |
7005 ACDGA/P4A Bearing Structural Features & Performance Benefits
- High Rigidity & Load Capacity: The angular contact design and duplex configuration provide exceptional stiffness, enabling the bearing to withstand high combined loads and moments.
- Superior High-Speed Performance: The lightweight phenolic cage minimizes centrifugal forces, contributing to a high limiting speed of 85,000 rpm. The open seal design reduces friction and heat generation.
- Precision Engineering: Manufactured to P4A tolerance class with tight dimensional controls on the bore diameter, outside diameter, and width, ensuring minimal runout and vibration.
- Universal Matching (SU): Bearings are universally matchable, allowing for flexible mounting in duplex pairs (DB, DF, DT) to achieve the required preload and stiffness without selective assembly.
7005 ACDGA/P4A Bearing Typical Application Areas
This bearing is engineered for high-performance applications where precision and speed are critical. Key industries and equipment include:
- Machine Tool Spindles: High-speed milling, grinding, and turning centers.
- Precision Instrumentation: Measuring devices and optical scanners.
- High-Frequency Motors and Spindles
- Medical Equipment: Dental handpieces and laboratory centrifuges.
