7005 ACDGC/P4A
7000 Series Super Precision Angular Contact Ball Bearings
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Part No.
Part No.
7005 ACDGC/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
Moderate / Class C
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
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7005 ACDGC/P4A Bearing Product Overview & Core Advantages
The 7005 ACDGC/P4A is a high-precision angular contact ball bearing designed for applications requiring exceptional rotational accuracy and rigidity. This single bearing features a 25° contact angle and a Moderate (Class C) preload, making it ideal for handling combined radial and axial loads simultaneously. Manufactured to the stringent P4A tolerance class, it delivers superior running accuracy and is Universal Matchable (SU), allowing for precise arrangement in sets of three to achieve optimal system performance. Its compact design, with a 25 mm bore and 12 mm width, is engineered for high-speed operation up to 85,000 rpm, making it a critical component in demanding, precision-driven machinery.
7005 ACDGC/P4A Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 7005 | Standard bearing series number indicating a 25mm bore and 47mm outside diameter. |
| AC | Angular Contact design, optimized for combined loads. |
| D | High ball complement and optimized internal geometry for increased load capacity. |
| GC | Specific internal clearance and preload group, corresponding to Moderate / Class C preload. |
| P4A | Super Precision tolerance class, exceeding ABEC 7 standards for exceptional running accuracy. |
7005 ACDGC/P4A Bearing Structural Features & Performance Benefits
- High Rigidity and Load Capacity: The angular contact design with a 25° contact angle and moderate preload provides superior stiffness, enabling the bearing to effectively support combined radial and axial loads. The optimized internal geometry and high ball complement further enhance its dynamic and static load ratings (2077 lbf / 1125 lbf).
- Superior High-Speed Performance: The lightweight, durable phenolic resin cage ensures stable operation and minimal centrifugal force at the limiting speed of 85,000 rpm. The precision-ground chrome steel rings and balls contribute to low vibration and heat generation.
- Precision and Interchangeability: Manufactured to P4A tolerance class with tight dimensional controls on the bore, outside diameter, and width. The Universal Matchable (SU) designation allows for simplified mounting in preload-adjusted sets without selective sorting.
- Wide Operating Range: The standard lubrication and robust material construction provide reliable performance across a temperature range from -30°C to 110°C.
7005 ACDGC/P4A Bearing Typical Application Areas
This precision bearing is engineered for high-performance applications where accuracy, speed, and rigidity are paramount. Key industries and equipment include:
- Machine Tool Spindles: For high-speed milling, grinding, and turning centers.
- Precision Robotics: In arm joints and rotary actuators requiring high positional accuracy.
- High-Frequency Spindles: Used in PCB drilling and routing equipment.
- Medical and Laboratory Equipment: In centrifuges and precision imaging devices.
- Aerospace Actuation Systems: For control surface mechanisms and auxiliary power units.
