7007 CE/HCP4AL1DBA
Hybrid Ceramic Super Precision Bearings
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Part No.
Part No.
7007 CE/HCP4AL1DBA
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
15 °
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
Extra light / Class A
Materials
Ring material
Chrome Steel
Ball material
Ceramic
Cage material
Phenolic
Technical Drawings
No drawings available at the moment, will be launched soon
In Stock
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7007 CE/HCP4AL1DBA Bearing Product Overview & Core Advantages
The 7007 CE/HCP4AL1DBA is a high-precision, duplex back-to-back angular contact ball bearing designed for demanding applications requiring exceptional rotational accuracy and rigidity. This P4A tolerance class bearing features a ceramic ball and phenolic cage construction, enabling superior high-speed performance and reduced operational friction. Its extra light preload (Class A) and matched DB arrangement ensure optimal running accuracy and stability under combined radial and axial loads, making it an ideal solution for high-performance spindles and precision machinery.
Model Code Breakdown
| Code Segment | Technical Meaning |
|---|---|
| 7007 | Basic bearing series and size designation (35mm bore, 62mm OD, 28mm width) |
| CE | Ceramic balls (typically silicon nitride) for enhanced speed capability and reduced weight |
| HC | High carbon chromium steel rings |
| P4A | Ultra-precision tolerance class superior to ABEC 7 |
| L1 | Light preload specification |
| DB | Duplex Back-to-Back mounting arrangement |
| A | 15° contact angle optimized for combined loading |
7007 CE/HCP4AL1DBA Bearing Structural Features & Performance Benefits
- High Rigidity & Stability: The duplex back-to-back (DB) arrangement creates a rigid bearing system that effectively resists moment loads and maintains precise shaft positioning, crucial for high-precision applications.
- Superior High-Speed Capability: The combination of ceramic balls (lower density, reduced centrifugal force) and a phenolic resin cage (lightweight, excellent slip characteristics) enables an exceptional limiting speed of 56,000 rpm.
- Enhanced Load Capacity: With a 15° contact angle and precision-ground raceways, this bearing efficiently handles combined radial and axial loads simultaneously, offering a dynamic load rating of 4,185 lbf and static load rating of 2,970 lbf.
- Precision Performance: Manufactured to P4A tolerance class with extremely tight dimensional tolerances on bore, outside diameter, and width, ensuring minimal runout and vibration for superior rotational accuracy.
- Optimized Preload: The extra light preload (Class A) minimizes friction and heat generation while maintaining system stiffness, contributing to longer service life and consistent performance.
7007 CE/HCP4AL1DBA Bearing Typical Application Areas
- Machine Tool Spindles: High-speed machining centers, grinding spindles, and CNC milling machines
- Precision Medical Equipment: Dental handpieces, laboratory centrifuges, and imaging devices
- Aerospace Systems: Gyroscopes, navigation instruments, and auxiliary power units
- Semiconductor Manufacturing: Wafer handling robots, precision positioning stages
- High-Speed Automation: Robotics, pick-and-place systems, and precision assembly equipment
