71915 CE/P4A
71900 Series Super Precision Angular Contact Ball Bearings
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Part No.
Part No.
71915 CE/P4A
Basic Information
System of measurement
Metric
Weight
0.34 kg
Tolerance class
P4 (ABEC-7)
Seal type
Open
For load direction
Angular Contact
Main Dimensions
Bore diameter
75 mm
Bore diameter tolerance
-0.007mm to 0
Outside diameter
105 mm
Outside diameter tolerance
-0.008mm to 0
Width
16 mm
Width tolerance
-0.2mm to 0
Contact angle
15 °
Ball & Washer Dimensions
Ball diameter
9.525 mm
Ball quantity
23
Performance
Temperature range
-30° to 110 °C
Radial dynamic load rating
5062 lbf
Radial static load rating
3825 lbf
Limiting speed
27 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:
$ 804.33
/ each
In Stock
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71915 CE/P4A Bearing Product Overview & Core Advantages
The 71915 CE/P4A is a single row angular contact ball bearing designed for high-precision applications requiring exceptional rotational accuracy and rigidity. Engineered to a P4 (ABEC-7) tolerance class, this bearing is optimized to handle significant axial loads in one direction, making it an ideal solution for machine tool spindles and other high-performance machinery where high rigidity and high-speed capability are critical. Its compact design and phenolic cage contribute to its superior performance in demanding operational environments.
71915 CE/P4A Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 71915 | Basic bearing series and size designation (75mm bore, 105mm OD, 16mm width) |
| CE | Designates a 15° contact angle and optimized internal geometry for high-speed operation |
| P4A | Indicates P4 (ABEC-7) tolerance class with specific running accuracy requirements |
71915 CE/P4A Bearing Structural Features & Performance Benefits
- High Rigidity & Precision: Manufactured to P4 tolerance class with a 15° contact angle, this bearing provides exceptional running accuracy and stiffness, essential for applications requiring minimal deflection under load.
- Optimized Load Capacity: Engineered to accommodate high axial loads in one direction while also supporting substantial radial loads, with a dynamic load rating of 5062 lbf and static load rating of 3825 lbf.
- Superior High-Speed Performance: The phenolic resin cage reduces centrifugal forces and friction, enabling a high limiting speed of 27,000 rpm. The open design facilitates efficient lubrication management.
- Precision Engineering: Manufactured from chrome steel for both rings and balls, ensuring high durability and consistent performance within a temperature range of -30°C to 110°C.
71915 CE/P4A Bearing Typical Application Areas
- Machine Tool Spindles (high-speed machining centers, grinding spindles)
- Precision Industrial Pumps and Compressors
- High-Frequency Motors and Robotic Drives
- Aerospace Actuation Systems and Medical Equipment
- Test and Measurement Equipment requiring ultra-precise rotational accuracy
