7007 FE/HCP4ADBB
Hybrid Ceramic Super Precision Bearings
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Part No.
Part No.
7007 FE/HCP4ADBB
Basic Information
System of measurement
Metric
Weight
0.27 kg
Tolerance class
P4A
Seal type
Open
For load direction
Angular Contact
Main Dimensions
Bore diameter
35 mm
Bore diameter tolerance
-0.004mm to 0
Outside diameter
62 mm
Outside diameter tolerance
-0.004mm to 0
Width
28 mm
Width tolerance
-0.2mm to 0
Contact angle
18 °
Ball & Washer Dimensions
Ball diameter
7.144 mm
Ball quantity
17
Performance
Temperature range
- 30°C to 110 °C
Radial dynamic load rating
4185 lbf
Radial static load rating
2970 lbf
Limiting speed
56 X 1000 rpm
Lubrication
Lubricated
Matched arrangement
Duplex Back-to-Back (DB)
Number of bearings in matched set
2
Universal matching bearing
No (Standard)
Preload
Light / Class B
Materials
Ring material
Chrome Steel
Ball material
Ceramic
Cage material
Phenolic
Technical Drawings
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7007 FE/HCP4ADBB Bearing Product Overview & Core Advantages
The 7007 FE/HCP4ADBB is a precision angular contact ball bearing designed for demanding applications requiring exceptional accuracy and performance. This duplex back-to-back (DB) matched set delivers superior high rigidity and stability under combined loads, including significant radial and axial forces. Manufactured to an ultra-precise P4A tolerance class and featuring a light preload (Class B), it is engineered for high-speed operation up to 56,000 rpm. The use of a phenolic cage and ceramic balls minimizes friction and heat generation, making it ideal for high-reliability, high-speed machinery.
Model Code Breakdown
| Code Segment | Technical Meaning |
|---|---|
| 7007 | Basic bearing series and size designation (35mm bore, 62mm OD). |
| FE | Indicates a duplex bearing set with a specific preload and tolerance. |
| HC | Hybrid Ceramic: Denotes the use of ceramic balls for enhanced speed and durability. |
| P4A | The tolerance class, signifying ultra-high precision exceeding ABEC 7/ISO P4 standards. |
| DBB | Duplex Back-to-Back: Specifies the matched arrangement of two bearings for high moment stiffness. |
7007 FE/HCP4ADBB Bearing Structural Features & Performance Benefits
- High Rigidity & Stability: The duplex back-to-back (DB) arrangement creates a wide, rigid support system that effectively resists moment loads and shaft deflection, ensuring precise rotational accuracy.
- Superior Speed & Thermal Performance: The combination of a lightweight phenolic cage and low-density ceramic (Si3N4) balls reduces centrifugal forces and friction, enabling the high limiting speed of 56,000 rpm and stable operation with less heat generation.
- High Precision & Low Runout: Manufactured to a P4A tolerance class with a light preload, this bearing set minimizes axial and radial play, delivering exceptional running accuracy for critical applications.
- Extended Service Life: Ceramic balls are harder, lighter, and more resistant to wear and corrosion than steel, significantly increasing bearing life, especially in challenging environments.
- Optimized Load Capacity: With an 18° contact angle, the bearing is optimized to handle combined radial and axial loads simultaneously, providing a dynamic load rating of 4185 lbf.
7007 FE/HCP4ADBB Bearing Typical Application Areas
This high-performance bearing is ideally suited for applications where high speed, high rigidity, and supreme precision are paramount. Key industries and equipment include:
- High-Frequency CNC Machining Spindles
- Precision Grinding Spindles
- High-Speed Robotics and Automation Arms
- Aerospace Actuators and Control Systems
- Medical and Dental Drill Handpieces
- Advanced Laboratory and Test Equipment
