7007 FE/HCP4ALADT
Hybrid Ceramic Super Precision Bearings
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Part No.
Part No.
7007 FE/HCP4ALADT
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 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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7007 FE/HCP4ALADT Bearing Product Overview & Core Advantages
The 7007 FE/HCP4ALADT is a precision angular contact ball bearing designed for demanding applications requiring exceptional speed and rigidity. This duplex tandem (DT) matched set features a P4A super-precision tolerance and is preloaded, ensuring minimal runout and high rotational accuracy. Its construction with a ceramic ball and phenolic cage enables superior high-speed performance and thermal stability. This bearing is engineered to handle significant combined loads, primarily thrust loads in one direction, making it ideal for high-precision, high-reliability spindles and machinery.
7007 FE/HCP4ALADT Bearing Model Code Explained, Specifications & Naming Convention
| Suffix | Technical Meaning |
|---|---|
| FE | Indicates a specific internal design and preload for high-speed, high-rigidity applications. |
| HC | Signifies the use of Hybrid Ceramic balls (Silicon Nitride), which reduce centrifugal forces and allow for higher speeds. |
| P4A | Denotes a super-precision tolerance class with very tight dimensional and running accuracy limits. |
| LA | Specifies a light preload applied to the bearing set, reducing deflection and improving system rigidity. |
| DT | Indicates a Duplex Tandem arrangement. Two bearings are mounted together to increase thrust capacity in a single direction. |
7007 FE/HCP4ALADT Bearing Structural Features & Performance Benefits
- High Rigidity and Precision: The duplex tandem arrangement and factory-applied light preload (LA) eliminate internal clearance, resulting in a very stiff bearing system that maintains precise shaft positioning under load.
- Superior High-Speed Capability: The combination of hybrid ceramic balls and a lightweight phenolic resin cage significantly reduces centrifugal forces and friction, enabling a high limiting speed of 56,000 rpm. This makes it an exemplary high-speed bearing.
- Optimized Load Capacity: The 18° contact angle and tandem configuration are optimized to handle high thrust loads in one direction, while also supporting substantial radial loads.
- Enhanced Operational Stability: The open design, when used with oil-air or oil-mist lubrication, ensures efficient heat dissipation. The phenolic cage offers excellent dimensional stability across the operating temperature range.
7007 FE/HCP4ALADT Bearing Typical Application Areas
This bearing is specifically designed for high-performance applications where speed, precision, and rigidity are paramount. Key industries and equipment include:
- Machine Tool Spindles: High-speed milling, grinding, and turning centers.
- Precision Spindles: PCB drilling and routing spindles.
- High-Frequency Motors: Spindles for electric motors requiring ultra-high rotational speeds.
- Aerospace & Defense Systems: Gyroscopes, radar systems, and other precision instrumentation.
