S7009 ACD/P4ADGA
Sealed Super Precision Angular Contact Ball Bearings
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Part No.
Part No.
S7009 ACD/P4ADGA
Basic Information
System of measurement
Metric
Weight
0.47 kg
Tolerance class
P4A
Seal type
Sealed
For load direction
Angular Contact
Main Dimensions
Bore diameter
45 mm
Bore diameter tolerance
-0.004mm to 0
Outside diameter
75 mm
Outside diameter tolerance
-0.004mm to 0
Width
32 mm
Width tolerance
-0.2mm to 0
Contact angle
25 °
Ball & Washer Dimensions
Ball diameter
9.525 mm
Ball quantity
17
Performance
Temperature range
- 30°C to 110 °C
Radial dynamic load rating
9945 lbf
Radial static load rating
9675 lbf
Limiting speed
41 X 1000 rpm
Lubrication
Grease
Matched arrangement
Universal Matchable (SU)
Number of bearings in matched set
2
Universal matching bearing
Universal Matchable (SU)
Preload
Extra light / Class A
Materials
Ring material
Chrome Steel
Ball material
Chrome Steel
Cage material
Phenolic
Technical Drawings
No drawings available at the moment, will be launched soon
In Stock
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S7009 ACD/P4ADGA Bearing Product Overview & Core Advantages
The S7009 ACD/P4ADGA is a precision double row angular contact ball bearing designed for applications demanding exceptional accuracy and reliability. Engineered with a 25° contact angle and P4A tolerance class, it excels at simultaneously handling combined radial and bidirectional axial loads. Its universal matchable (SU) design allows for flexible mounting arrangements in preloaded sets, delivering high rigidity and stable rotational performance in high-speed operations up to 41,000 rpm. Pre-lubricated with grease and sealed for life, it offers a maintenance-free solution for critical machinery.
S7009 ACD/P4ADGA Bearing Model Code Explained, Specifications & Naming Convention
The model number S7009 ACD/P4ADGA deciphers as follows:
- S: Denotes a bearing with a super-precision level.
- 7009: Standard bore (45 mm) and outside diameter (75 mm) designation.
- AC: Angular Contact design with a 25° contact angle.
- D: Signifies a Double Row bearing construction.
- P4A: Indicates an ultra-precision tolerance class (exceeding ABEC 7), ensuring minimal runout and vibration.
- DGA: Specifies the use of a phenolic resin cage, which is lightweight and ideal for high-speed operation, and that the bearing is pre-lubricated with grease.
S7009 ACD/P4ADGA Bearing Structural Features & Performance Benefits
- High Rigidity & Load Capacity: The double row angular contact design provides superior stiffness and can support significant combined loads (radial and axial from both directions), making it ideal for applications with complex loading conditions.
- Superior High-Speed Performance: The lightweight phenolic cage (DGA) reduces centrifugal forces, while the optimized internal geometry and P4A precision contribute to smooth operation at the limiting speed of 41,000 rpm.
- Long-Term Reliability & Maintenance-Free Operation: As a sealed and grease-lubricated unit, the bearing is protected from contamination and is lubricated for life within its specified temperature range (-30°C to 110°C), eliminating the need for re-lubrication.
- Precision Engineering: Manufactured from chrome steel with tight dimensional tolerances on the bore, outside diameter, and width, ensuring consistent performance and ease of installation in high-precision assemblies.
S7009 ACD/P4ADGA Bearing Typical Application Areas
This bearing is ideally suited for high-performance applications requiring precision and speed, including:
- Machine Tool Spindles
- High-Frequency Motors
- Precision Grinding Spindles
- Industrial Pumps and Compressors
- Aerospace Control Systems
- Medical and Laboratory Equipment
