S7007 ACE/HCP4ADT
Hybrid Ceramic Super Precision Bearings
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Part No.
Part No.
S7007 ACE/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
25 °
Ball & Washer Dimensions
Ball diameter
7.144 mm
Ball quantity
17
Performance
Temperature range
- 30°C to 110 °C
Radial dynamic load rating
4005 lbf
Radial static load rating
2812 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 ACE/HCP4ADT Bearing Product Overview & Core Advantages
The S7007 ACE/HCP4ADT is a duplex tandem (DT) matched pair of super-precision angular contact ball bearings. Engineered for the most demanding applications, this set is designed to handle combined loads (radial and axial) in one direction with maximum rigidity and accuracy. Its defining features include a P4A tolerance class for exceptional running accuracy, a ceramic ball and phenolic cage combination for superior high-speed performance, and preload applied for immediate, precise response. This configuration is ideal for spindles requiring the ultimate in high rigidity and rotational precision.
S7007 ACE/HCP4ADT Bearing Model Code Explained, Specifications & Naming Convention
| Model Segment | Technical Meaning | Significance |
|---|---|---|
| S7007 | Basic Bearing Series & Size | Indicates a 35mm bore, 62mm OD, 14mm width bearing from a high-precision series. |
| ACE | 25° Contact Angle, Phenolic Cage, High Precision | Specifies the 25° contact angle for optimal axial load capacity and a phenolic cage for reduced friction and weight at high speeds. |
| HC | Hybrid Ceramic | Denotes the use of ceramic balls, which offer lower density, reduced centrifugal force, and non-conductivity, enabling higher speeds and longer service life. |
| P4A | Tolerance Class | Signifies a super-precision tolerance level (superior to ABEC 7), ensuring minimal runout and vibration for ultra-smooth operation. |
| DT | Duplex Tandem Arrangement | Indicates the two bearings are matched and preloaded in a tandem configuration to maximize axial load capacity and rigidity in a single direction. |
S7007 ACE/HCP4ADT Bearing Structural Features & Performance Benefits
- Unmatched Rigidity and Load Capacity: The duplex tandem (DT) arrangement creates an exceptionally rigid setup, capable of supporting high combined loads. This configuration significantly increases the axial load capacity in one direction compared to a single bearing.
- Superior High-Speed Performance: The combination of hybrid ceramic balls (lower mass, reduced centrifugal force) and a lightweight phenolic resin cage allows for a very high limiting speed of 41,000 rpm. This makes it ideal for high-frequency spindles.
- Precision and Stability: Manufactured to P4A tolerance class, this bearing set guarantees minimal runout and superior rotational accuracy, which is critical for applications demanding high surface finish and dimensional precision.
- Optimized for Performance: The 25° contact angle provides an excellent balance between radial and axial load carrying capabilities. The bearings are supplied pre-greased and sealed for immediate installation and protection from contaminants.
S7007 ACE/HCP4ADT Bearing Typical Application Areas
The S7007 ACE/HCP4ADT is engineered for high-performance machinery where precision, speed, and rigidity are paramount. Key application areas include:
- High-Frequency CNC Spindles for milling, grinding, and routing
- Precision Machine Tool Spindles
- High-Speed Robotic Drives
- Advanced Dental and Medical Equipment Spindles
- Aerospace Test and Measurement Equipment
