S7209 ACD/P4A
Sealed Super Precision Angular Contact Ball Bearings
Image may differ from product. See technical specification for details.
Part No.
Part No.
S7209 ACD/P4A
Basic Information
System of measurement
Metric
Weight
0.42 kg
Tolerance class
P4 (ABEC-7)
Seal type
Sealed
For load direction
Angular Contact
Main Dimensions
Bore diameter
45 mm
Bore diameter tolerance
-0.006mm to 0
Outside diameter
85 mm
Outside diameter tolerance
-0.008mm to 0
Width
19 mm
Width tolerance
-0.2mm to 0
Contact angle
25 °
Ball & Washer Dimensions
Ball diameter
12.7 mm
Ball quantity
14
Performance
Temperature range
-30° to 110 °C
Radial dynamic load rating
9225 lbf
Radial static load rating
6750 lbf
Limiting speed
15 X 1000 rpm
Lubrication
Lubricated
Matched arrangement
Single
Preload
Available
Materials
Ring material
Chrome Steel
Ball material
Chrome Steel
Cage material
Phenolic
Technical Drawings
No drawings available at the moment, will be launched soon
Price:
$ 367.69
/ each
In Stock
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S7209 ACD/P4A Bearing Product Overview & Core Advantages
The S7209 ACD/P4A is a single-row angular contact ball bearing engineered for applications demanding high precision and high-speed operation. Its primary function is to accommodate combined loads, specifically heavy thrust loads in one direction alongside significant radial loads. The bearing features a 25° contact angle and is supplied with a P4 (ABEC-7) tolerance class, ensuring exceptional running accuracy. Preloaded and pre-lubricated, it offers high rigidity and is ready for immediate installation in demanding, high-reliability systems.
S7209 ACD/P4A Bearing Model Code Explained, Specifications & Naming Convention
| Suffix Code | Technical Meaning | Advantage |
|---|---|---|
| ACD | Angular Contact, 25° Contact Angle | Optimized for handling high thrust loads. |
| P4A | P4 (ABEC-7) Tolerance Class, Universal Mounting | Guarantees high precision and running accuracy; can be mounted in any arrangement. |
S7209 ACD/P4A Bearing Structural Features & Performance Benefits
- High Rigidity and Precision: Manufactured to a P4 tolerance class with a phenolic resin cage, this bearing ensures minimal vibration and precise shaft guidance, which is critical for high-speed applications.
- Superior Load Capacity: The 25° contact angle and robust construction provide an excellent dynamic load rating of 9225 lbf, making it ideal for applications with significant combined radial and one-directional axial loads.
- Optimized High-Speed Performance: The lightweight phenolic cage reduces centrifugal forces, contributing to a high limiting speed of 15,000 rpm. The bearing is pre-lubricated to ensure reliable operation at these elevated speeds.
- Sealed and Pre-Lubricated: As a sealed bearing, it is protected from contamination and comes with factory-applied lubricant, offering a long service life and maintenance-free operation within its specified temperature range.
S7209 ACD/P4A Bearing Typical Application Areas
This precision angular contact ball bearing is ideally suited for:
- Machine Tool Spindles
- High-Frequency Motors
- Precision Grinding Spindles
- High-Speed Pumps and Compressors
- Medical and Dental Equipment
