7007 ACB/HCP4A
Hybrid Ceramic Super Precision Bearings
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Part No.
Part No.
7007 ACB/HCP4A
Basic Information
System of measurement
Metric
Weight
0.16 kg
Tolerance class
P4 (ABEC-7)
Seal type
Open
For load direction
Angular Contact
Main Dimensions
Bore diameter
35 mm
Bore diameter tolerance
-0.006mm to 0
Outside diameter
62 mm
Outside diameter tolerance
-0.007mm to 0
Width
14 mm
Width tolerance
-0.2mm to 0
Contact angle
25 °
Ball & Washer Dimensions
Ball diameter
4.762 mm
Ball quantity
23
Performance
Temperature range
-30° to 110 °C
Radial dynamic load rating
1462 lbf
Radial static load rating
1024 lbf
Limiting speed
53 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:
$ 178.71
/ each
In Stock
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7007 ACB/HCP4A Bearing Product Overview & Core Advantages
The 7007 ACB/HCP4A is a high-precision angular contact ball bearing engineered for applications demanding exceptional accuracy and performance. This single-row bearing is designed to accommodate high combined loads, primarily thrust loads in one direction, while also supporting significant radial loads. Its defining features include a 25° contact angle for optimal axial load capacity, a P4 (ABEC-7) tolerance class for superior running accuracy, and a phenolic resin cage that enables high-speed operation. Preloaded and pre-lubricated, it offers high rigidity and is ready for immediate installation in demanding, high-reliability systems.
7007 ACB/HCP4A Bearing Model Code Explained, Specifications & Naming Convention
| Suffix Code | Technical Meaning | Significance |
|---|---|---|
| ACB | Angular Contact Bearing | Confirms the bearing type is a single-row angular contact ball bearing. |
| H | High Preload | Indicates the bearing is supplied with a high preload for maximum system rigidity and minimal axial/radial play. |
| C | Ceramic Balls | Specifies the use of ceramic (typically silicon nitride) balls, which reduce weight, friction, and heat generation, enhancing high-speed performance. |
| P4A | P4 (ABEC-7) Tolerance | Denotes an ultra-precision tolerance class, ensuring extremely tight dimensional and running accuracy for smooth, quiet, and vibration-free operation. |
7007 ACB/HCP4A Bearing Structural Features & Performance Benefits
- High Rigidity and Precision: The combination of a 25° contact angle and a high preload (H) provides exceptional stiffness, minimizing deflection under load and ensuring precise rotational accuracy. The P4 tolerance class guarantees dimensional perfection.
- Superior Load Capacity: Engineered to handle significant combined loads, this bearing excels at supporting high one-direction thrust loads alongside substantial radial loads.
- Exceptional High-Speed Performance: The phenolic resin cage offers excellent strength-to-weight ratio and low friction, while the ceramic balls (C) reduce centrifugal forces and thermal expansion. This synergy allows for a high limiting speed of 53,000 rpm.
- Enhanced Durability and Longevity: Ceramic balls are electrically insulating, highly corrosion-resistant, and have a lower coefficient of thermal expansion than steel, leading to longer service life and consistent performance across the operating temperature range (-30° to 110 °C).
7007 ACB/HCP4A Bearing Typical Application Areas
- High-Speed Machine Tool Spindles (e.g., milling, grinding, and drilling)
- Precision Robotics and Automation Arms
- High-Frequency CNC Machining Centers
- Medical and Dental Equipment (e.g., high-speed handpieces, centrifuges)
- Aerospace Actuators and Instrumentation
- High-Performance Pumps and Compressors
