7010 ACDGA/HCP4A
Hybrid Ceramic Super Precision Bearings
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Part No.
Part No.
7010 ACDGA/HCP4A
Basic Information
System of measurement
Metric
Weight
0.22 kg
Tolerance class
P4A
Seal type
Open
For load direction
Angular Contact
Main Dimensions
Bore diameter
50 mm
Bore diameter tolerance
-0.004mm to 0
Outside diameter
80 mm
Outside diameter tolerance
-0.004mm to 0
Width
16 mm
Width tolerance
-0.2mm to 0
Contact angle
25 °
Ball & Washer Dimensions
Ball diameter
9.525 mm
Ball quantity
18
Performance
Temperature range
- 30°C to 110 °C
Radial dynamic load rating
6322 lbf
Radial static load rating
5220 lbf
Limiting speed
46 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
Ceramic
Cage material
Phenolic
Technical Drawings
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7010 ACDGA/HCP4A Bearing Product Overview & Core Advantages
The 7010 ACDGA/HCP4A is a high-precision angular contact ball bearing engineered for applications demanding exceptional accuracy and performance. As a single bearing with a Universal Matchable (SU) designation, it is designed to be mounted in sets (typically of three) to form a rigid, preloaded system capable of handling combined loads. Its core advantages stem from the use of ceramic balls and a P4A super-precision tolerance, delivering superior high-speed capability, reduced friction, and extended service life in demanding operational environments.
7010 ACDGA/HCP4A Bearing Model Code Explained, Specifications & Naming Convention
| Suffix Code | Technical Meaning |
|---|---|
| AC | Angular Contact design, optimized for combined radial and axial loads. |
| DGA | Specific internal design and contact angle (25°). |
| HC | Hybrid Ceramic: Features ceramic balls for enhanced performance. |
| P4A | Super Precision Tolerance Class, ensuring extremely tight dimensional and running accuracy for the highest performance applications. |
7010 ACDGA/HCP4A Bearing Structural Features & Performance Benefits
- Hybrid Ceramic Construction: The combination of chrome steel rings and ceramic balls significantly reduces friction, heat generation, and wear. This construction enables higher limiting speeds, longer lubrication life, and is less susceptible to lubrication failure.
- Phenolic Cage: The lightweight and robust phenolic resin cage contributes to smooth operation at very high speeds, offering excellent dimensional stability and low friction.
- High Rigidity & Load Capacity: The 25° contact angle and precision-ground raceways provide high rigidity and are optimized to support significant combined loads (radial and axial).
- Super-Precision Performance: The P4A tolerance class guarantees minimal runout and vibration, which is critical for applications requiring extreme rotational accuracy and smooth operation.
- Universal Matching (SU): This bearing is universally matchable, allowing for flexible mounting in sets (e.g., duplex or triplex arrangements) to achieve specific preload and stiffness characteristics without selective grading.
7010 ACDGA/HCP4A Bearing Typical Application Areas
- High-Speed Machine Tool Spindles
- Precision Grinding Spindles
- High-Frequency Machining Centers
- Aerospace & Defense Systems
- Medical & Dental Equipment Spindles
- High-Performance Pumps and Compressors
