S7007 CE/HCP4ADT
Hybrid Ceramic Super Precision Bearings
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Part No.
Part No.
S7007 CE/HCP4ADT
Basic Information
System of measurement
Metric
Weight
0.28 kg
Tolerance class
P4A
Seal type
Sealed
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
Grease
Matched arrangement
Duplex Tandem (DT)
Number of bearings in matched set
2
Universal matching bearing
No (Standard)
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
In Stock
Price available upon request.
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S7007 CE/HCP4ADT Bearing Product Overview & Core Advantages
The S7007 CE/HCP4ADT is a super-precision angular contact ball bearing designed for the most demanding high-speed and high-rigidity applications. As a duplex tandem (DT) matched set, this pair of bearings is preloaded to deliver exceptional axial and radial stiffness, making it ideal for machine tool spindles and other precision equipment. Its use of ceramic balls and a phenolic cage significantly reduces centrifugal forces, enabling superior high-speed performance and extended service life under extreme operating conditions.
Model Code Breakdown
| Suffix Code | Technical Meaning | Advantage |
|---|---|---|
| S7007 | Super-precision bearing series with 35mm bore. | Denotes the high-precision foundation of the bearing. |
| CE | Hybrid bearing with Ceramic balls. | Enables higher speeds, reduced heat generation, and longer life. |
| HC | Phenolic (Polyamide) Cage. | Lightweight cage for excellent high-speed performance and low friction. |
| P4A | Tolerance class P4A (geometric tolerances tighter than ABEC 7). | Guarantees ultra-precise running accuracy for demanding spindle applications. |
| DT | Duplex Tandem arrangement. | Two bearings matched to share the load, providing maximum axial rigidity and load capacity in one direction. |
S7007 CE/HCP4ADT Bearing Structural Features & Performance Benefits
- Exceptional Rigidity and Load Capacity: The duplex tandem (DT) arrangement with preload creates a highly rigid bearing system capable of withstanding heavy combined loads, particularly substantial thrust loads in one direction. This configuration is engineered for applications requiring minimal axial deflection.
- Superior High-Speed Performance: The combination of ceramic balls (lower density than steel) and a lightweight phenolic cage drastically reduces centrifugal forces and operating temperatures. This allows the bearing to achieve its high limiting speed of 56,000 rpm with exceptional stability.
- Precision and Longevity: Manufactured to a P4A tolerance class, this bearing ensures minimal runout and vibration, which is critical for maintaining machining accuracy. The 15-degree contact angle provides an optimal balance between radial load capacity and thrust load capability.
- Sealed and Lubricated for Life: As a sealed bearing pre-lubricated with grease, it is protected from contamination and is typically maintenance-free within its specified temperature range of -30°C to 110°C.
S7007 CE/HCP4ADT Bearing Typical Application Areas
This bearing is specifically engineered for high-performance applications where speed, precision, and rigidity are paramount. Key industries and equipment include:
- Machine Tool Spindles: High-speed machining centers, grinding spindles, and milling spindles.
- Precision Instrumentation: High-frequency spindles for PCB drilling and precision measuring equipment.
- High-Speed Motors: Spindles for integrally mounted motor spindles (IBS).
- Aerospace and Defense: Gyroscopes, radar systems, and other critical rotating assemblies.
