S71909 CD/P4ADGA
Sealed Super Precision Angular Contact Ball Bearings
Image may differ from product. See technical specification for details.
Part No.
Part No.
S71909 CD/P4ADGA
Basic Information
System of measurement
Metric
Weight
0.27 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
68 mm
Outside diameter tolerance
-0.004mm to 0
Width
24 mm
Width tolerance
-0.2mm to 0
Contact angle
15 °
Ball & Washer Dimensions
Ball diameter
6.35 mm
Ball quantity
23
Performance
Temperature range
- 30°C to 110 °C
Radial dynamic load rating
4770 lbf
Radial static load rating
4275 lbf
Limiting speed
46 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
Price:
$ 201.64
/ each
In Stock
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S71909 CD/P4ADGA Bearing Product Overview & Core Advantages
The S71909 CD/P4ADGA is a metric precision angular contact ball bearing designed for exceptional performance in demanding applications. Engineered to simultaneously handle combined radial and axial loads, this bearing features a 15° contact angle and is supplied as a universally matchable (SU) pair, enabling simplified assembly of preloaded sets for superior high rigidity and rotational accuracy. Manufactured to the stringent P4A tolerance class, it delivers the high precision and reliability required for machine tool spindles and other high-speed equipment.
S71909 CD/P4ADGA Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| S71909 | Basic bearing designation, indicating a precision angular contact ball bearing series with a 45mm bore. |
| CD | Indicates a 15° contact angle and that the bearing is supplied as a universally matchable (SU) pair. |
| P4A | Specifies the high-precision tolerance class, exceeding ABEC 7 standards for exceptional running accuracy. |
| DGA | Likely denotes specific manufacturing or material features, such as the phenolic cage and grease lubrication. |
S71909 CD/P4ADGA Bearing Structural Features & Performance Benefits
- High Rigidity & Load Capacity: The dual bearing arrangement and 15° contact angle provide excellent stability and the ability to support significant combined loads from multiple directions.
- Precision & High-Speed Performance: Manufactured to P4A tolerance standards with a lightweight phenolic cage, this bearing ensures smooth operation and is capable of achieving a limiting speed of 46,000 rpm.
- Optimized for Preload: The universal matchable (SU) design allows for easy creation of preloaded bearing sets, eliminating internal clearance and maximizing system stiffness for critical applications.
- Ready-to-Use & Durable: The bearing is pre-lubricated with grease and features sealed construction, offering long service life and reduced maintenance requirements within its specified temperature range of -30°C to 110°C.
S71909 CD/P4ADGA Bearing Typical Application Areas
This high-precision angular contact ball bearing is ideally suited for applications requiring high speed, rigidity, and accuracy, including:
- Machine Tool Spindles
- High-Frequency Motors
- Precision Grinding Spindles
- Industrial Pumps and Compressors
- Medical and Laboratory Equipment
