S71910 CE/P4ADGA
Sealed Super Precision Angular Contact Ball Bearings
Image may differ from product. See technical specification for details.
Part No.
Part No.
S71910 CE/P4ADGA
Basic Information
System of measurement
Metric
Weight
0.25 kg
Tolerance class
P4A
Seal type
Sealed
For load direction
Angular Contact
Main Dimensions
Bore diameter
50 mm
Bore diameter tolerance
-0.004mm to 0
Outside diameter
72 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
7.144 mm
Ball quantity
21
Performance
Temperature range
- 30°C to 110 °C
Radial dynamic load rating
4680 lbf
Radial static load rating
3825 lbf
Limiting speed
34 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:
$ 149.54
/ each
In Stock
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S71910 CE/P4ADGA Bearing Product Overview & Core Advantages
The S71910 CE/P4ADGA is a super-precision double row angular contact ball bearing engineered for applications demanding the highest levels of accuracy, rigidity, and speed. Its compact design combines two rows of balls with a 15° contact angle, enabling it to support substantial combined loads (radial and bidirectional axial loads) simultaneously. Manufactured to the stringent P4A tolerance class and featuring a universal matchable (SU) design, this bearing is the ideal solution for high-reliability, high-performance spindles and precision machinery.
Model Code Breakdown
The model number S71910 CE/P4ADGA provides detailed technical specifications:
- S: Denotes a super-precision bearing series.
- 7: Identifies the bearing as an angular contact ball bearing.
- 1910: Specifies the size series; 10mm bore x 22mm OD x 6mm width (Note: The provided data indicates a 50mm bore, suggesting a potential discrepancy; the following suffixes are based on the given model).
- CE: Indicates a universal matchable (SU) bearing designed for flexible mounting arrangements in pairs.
- P4A: Specifies the tolerance class, representing extremely high dimensional and running accuracy, superior to ABEC 7.
- DGA: Indicates the bearing is preloaded with a specific grease lubrication suitable for high-speed operation.
S71910 CE/P4ADGA Bearing Structural Features & Performance Benefits
- High Rigidity & Load Capacity: The double row design provides superior radial and axial rigidity, effectively handling combined loads and moment loads. The extra light preload (Class A) ensures precise shaft positioning and minimizes deflection under operational stresses.
- Super-Precision & High-Speed Performance: Built to P4A tolerance standards, this bearing guarantees minimal runout and vibration. The lightweight phenolic resin cage and optimized grease lubrication contribute to a high limiting speed of 34,000 rpm, making it suitable for very high-speed spindles.
- Sealed & Maintenance-Free Operation: The sealed design effectively excludes contaminants and retains lubricant, ensuring long service life and reliable, maintenance-free operation in demanding environments.
- Premium Materials: Constructed from chrome steel for both rings and balls, the bearing offers high fatigue resistance and durability.
S71910 CE/P4ADGA Bearing Typical Application Areas
This bearing is specifically designed for high-end applications where precision and speed are critical:
- Machine Tool Spindles: High-speed machining centers, grinding spindles, and CNC milling machines.
- Precision Instrumentation: High-frequency spindles for PCB drilling, semiconductor manufacturing equipment.
- High-Speed Motors: Spindles for integrally mounted motors and high-frequency applications.
- Medical Equipment: High-speed rotors in dental handpieces and medical centrifuges.
