S7007 ACDGD/P4A
Sealed Super Precision Angular Contact Ball Bearings
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Part No.
Part No.
S7007 ACDGD/P4A
Basic Information
System of measurement
Metric
Weight
0.15 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
14 mm
Width tolerance
-0.2mm to 0
Contact angle
25 °
Ball & Washer Dimensions
Ball diameter
7.938 mm
Ball quantity
16
Performance
Temperature range
- 30°C to 110 °C
Radial dynamic load rating
3330 lbf
Radial static load rating
2025 lbf
Limiting speed
41 X 1000 rpm
Lubrication
Grease
Matched arrangement
Single
Number of bearings in matched set
4
Universal matching bearing
Universal Matchable (SU)
Preload
Heavy / Class D
Materials
Ring material
Chrome Steel
Ball material
Chrome Steel
Cage material
Phenolic
Technical Drawings
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In Stock
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S7007 ACDGD/P4A Bearing Product Overview & Core Advantages
The S7007 ACDGD/P4A is a super-precision angular contact ball bearing designed for the most demanding applications. Engineered as a single bearing with a 25° contact angle and a Class D heavy preload, it delivers exceptional rotational accuracy and system rigidity. Its primary advantage lies in its ability to handle combined loads (high radial and axial loads simultaneously) while maintaining ultra-high speed performance, making it ideal for high-precision, high-reliability spindles and systems.
S7007 ACDGD/P4A Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| S7007 | Basic bearing series and size designation (35mm bore, 62mm OD, 14mm width). |
| AC | Angular Contact design with a 25° contact angle. |
| D | Heavy Preload (Class D), providing maximum system stiffness and minimal runout. |
| GD | Grease lubricated and Sealed on both sides for maintenance-free operation and contamination protection. |
| P4A | Super Precision tolerance class (equivalent to ABEC 7), ensuring extremely tight dimensional and running accuracy. |
S7007 ACDGD/P4A Bearing Structural Features & Performance Benefits
- High Rigidity & Load Capacity: The 25° contact angle and heavy preload are optimized to deliver superior stiffness, enabling the bearing to withstand significant combined radial and axial loads with minimal deflection.
- Ultra-High Speed Performance: The lightweight phenolic resin cage minimizes centrifugal forces, reduces friction, and allows for a high limiting speed of 41,000 rpm, which is critical for high-speed spindle applications.
- Precision & Accuracy: Manufactured to P4A super-precision standards with tight tolerances on all dimensions, this bearing guarantees exceptional running accuracy and low vibration levels.
- Maintenance-Free & Long Service Life: The integral seals (GD) and factory-applied grease lubrication protect against contaminants and provide reliable, long-term operation without re-lubrication within the specified temperature range of -30°C to 110°C.
- Universal Matchability (SU): This bearing is universally matchable, allowing for simplified mounting in sets of two or more to achieve even higher rigidity and load-sharing capabilities.
S7007 ACDGD/P4A Bearing Typical Application Areas
- Machine Tool Spindles: High-speed machining centers, grinding spindles, and milling spindles.
- Precision Equipment: PCB drilling and routing spindles.
- High-Frequency Motors: Spindles for high-RPM electric motors.
- Aerospace & Defense Systems: Gyroscopes, radar systems, and other precision instrumentation.
