S7007 ACB/HCP4ADT
Hybrid Ceramic Super Precision Bearings
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Part No.
Part No.
S7007 ACB/HCP4ADT
Basic Information
System of measurement
Metric
Weight
0.33 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
25 °
Ball & Washer Dimensions
Ball diameter
4.762 mm
Ball quantity
23
Performance
Temperature range
- 30°C to 110 °C
Radial dynamic load rating
2385 lbf
Radial static load rating
2059 lbf
Limiting speed
41 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 ACB/HCP4ADT Bearing Product Overview & Core Advantages
The S7007 ACB/HCP4ADT is a precision angular contact ball bearing designed for demanding applications requiring high speed, rigidity, and accuracy. As part of a matched duplex tandem (DT) arrangement, this bearing set is engineered to handle significant combined loads, including heavy thrust loads in a single direction. Its construction with ceramic balls and a phenolic cage contributes to superior high-speed performance, reduced weight, and excellent operational characteristics. This bearing is preloaded and adheres to the stringent P4A tolerance class, making it an ideal choice for high-precision, high-reliability spindles and machinery.
Model Code Breakdown
| Code Segment | Technical Meaning |
|---|---|
| S7007 | Basic bearing series and size designation (35mm bore, 62mm OD, 28mm width). |
| AC | Angular Contact design with a 25° contact angle for optimal thrust load capacity. |
| B | Indicates a 40° contact angle. (Note: Specification sheet indicates 25°, this suffix may denote a specific internal design or preload class). |
| HCP4A | Denotes a matched duplex set (DT) with P4A super-precision tolerance and a specific preload. |
| DT | Duplex Tandem arrangement. Two bearings are mounted together to increase thrust capacity in one direction. |
S7007 ACB/HCP4ADT Bearing Structural Features & Performance Benefits
- High Rigidity and Load Capacity: The duplex tandem (DT) arrangement of two preloaded bearings creates an extremely rigid system capable of supporting high combined radial and axial loads, particularly very high unidirectional thrust loads.
- Superior High-Speed Performance: The combination of ceramic (Si3N4) balls and a lightweight phenolic resin cage reduces centrifugal forces, lowers operating temperature, and allows for a very high limiting speed of 41,000 rpm.
- Precision and Accuracy: Manufactured to ABEC 7 / P4A tolerance class with tight dimensional runout tolerances, ensuring smooth, quiet, and precise operation essential for high-speed spindles.
- Sealed and Lubricated for Life: The bearing is sealed and pre-lubricated with high-performance grease, protecting against contamination and providing maintenance-free operation within its specified temperature range.
S7007 ACB/HCP4ADT Bearing Typical Application Areas
- High-Speed Machine Tool Spindles (Milling, Grinding, Drilling)
- Precision High-Frequency Spindles for PCB drilling and routing
- High-performance Turbochargers
- Advanced Aerospace and Defense Systems
- Other high-speed machinery requiring super-precision bearings with exceptional thrust capacity and speed capabilities.
