7005 ACD/HCP4A
Hybrid Ceramic Super Precision Bearings
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Part No.
Part No.
7005 ACD/HCP4A
Basic Information
System of measurement
Metric
Weight
0.07 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
60 X 1000 rpm
Lubrication
Lubricated
Matched arrangement
Single
Preload
Available
Materials
Ring material
Chrome Steel
Ball material
Ceramic
Cage material
Phenolic
Technical Drawings
No drawings available at the moment, will be launched soon
Price:
$ 122.19
/ each
In Stock
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7005 ACD/HCP4A Bearing Product Overview & Core Advantages
The 7005 ACD/HCP4A is a high-precision angular contact ball bearing engineered for applications demanding exceptional accuracy and high-speed performance. This single bearing features a 25° contact angle and is supplied with a preload, delivering superior running accuracy and high rigidity. Its construction, utilizing ceramic balls and a phenolic resin cage, is optimized for high rotational speeds while effectively handling combined radial and axial loads. The bearing comes pre-lubricated and adheres to the stringent P4 (ABEC-7) tolerance class, making it an ideal choice for high-reliability, precision machinery.
7005 ACD/HCP4A Bearing Model Code Explained, Specifications & Naming Convention
The model number 7005 ACD/HCP4A provides specific technical details:
- 7005: Standard designation indicating a 25mm bore, 47mm outside diameter, and 12mm width.
- A: Denotes a 25° contact angle.
- CD: Signifies that the bearing is supplied with a preload for enhanced rigidity and precision.
- HCP4A: Indicates the use of Hybrid Ceramic components (steel rings with ceramic balls) and a P4 tolerance class.
7005 ACD/HCP4A Bearing Structural Features & Performance Benefits
- High-Speed & High-Rigidity Performance: The combination of a phenolic resin cage and ceramic (hybrid) balls significantly reduces centrifugal forces and friction, enabling a high limiting speed of 60,000 rpm. The applied preload (CD) ensures maximum shaft rigidity and minimizes deflection under load.
- Superior Load Capacity: Designed with a 25° contact angle, this bearing efficiently supports substantial combined radial and axial loads, with a dynamic load rating of 2077 lbf and a static load rating of 1125 lbf.
- Precision & Longevity: Manufactured to P4 (ABEC-7) tolerance standards, it guarantees exceptional running accuracy. The open seal type allows for optimal lubrication management in controlled environments, contributing to a long service life within a temperature range of -30°C to 110°C.
7005 ACD/HCP4A Bearing Typical Application Areas
This high-performance bearing is ideally suited for:
- Machine Tool Spindles
- High-Speed CNC Machining Centers
- Precision Grinding Spindles
- High-Frequency Motors and Spindles
- Robotic Arm Joints and Drives
