71916 CE/P4ADGA
71900 Series Super Precision Angular Contact Ball Bearings
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Part No.
Part No.
71916 CE/P4ADGA
Basic Information
System of measurement
Metric
Weight
0.72 kg
Tolerance class
P4A
Seal type
Open
For load direction
Angular Contact
Main Dimensions
Bore diameter
80 mm
Bore diameter tolerance
-0.004mm to 0
Outside diameter
110 mm
Outside diameter tolerance
-0.004mm to 0
Width
32 mm
Width tolerance
-0.2mm to 0
Contact angle
15 °
Ball & Washer Dimensions
Ball diameter
9.525 mm
Ball quantity
24
Performance
Temperature range
- 30°C to 110 °C
Radial dynamic load rating
8348 lbf
Radial static load rating
7988 lbf
Limiting speed
28 X 1000 rpm
Lubrication
Lubricated
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:
$ 478.95
/ each
In Stock
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71916 CE/P4ADGA Bearing Product Overview & Core Advantages
The 71916 CE/P4ADGA is a super-precision angular contact ball bearing designed for applications demanding exceptional rotational accuracy and high-speed performance. As part of the Universal Matchable (SU) series, it is manufactured to P4A tolerance class for superior dimensional and running accuracy. Its core advantages include the ability to accommodate combined radial and axial loads simultaneously, facilitated by a 15° contact angle. The phenolic cage and optimized internal geometry contribute to low friction, high limiting speeds, and excellent operational stability, making it ideal for high-precision, high-reliability machinery.
71916 CE/P4ADGA Bearing Model Code Explained, Specifications & Naming Convention
| Suffix Code | Technical Meaning | Significance |
|---|---|---|
| C | 15° Contact Angle | Optimized for high-speed applications and moderate axial load capacity. |
| E | Optimized Internal Design | Enhanced internal geometry for improved performance and load rating. |
| P4A | Tolerance Class | High-precision grade with tight tolerances on bore, outside diameter, and width for superior running accuracy. |
| DGA | Universal Matchable (SU), Extra Light Preload | Bearing is supplied as one of a pair (2 bearings) pre-set for universal mounting (any combination) with an extra light preload (Class A) to minimize friction and heat generation at high speeds. |
71916 CE/P4ADGA Bearing Structural Features & Performance Benefits
- High-Speed Capability: The lightweight phenolic resin cage ensures excellent dimensional stability and low centrifugal forces at high rotational speeds, contributing to the high limiting speed of 28,000 rpm.
- Super-Precision Performance: Manufactured to ABEC 7 / P4A tolerance standards, this bearing guarantees minimal runout and vibration, which is critical for applications requiring extreme positional accuracy.
- Optimized Load Capacity: The 15° contact angle and robust internal design provide a high dynamic load rating of 8348 lbf, enabling reliable operation under combined loads.
- Universal Matching (SU): Bearings are universally matchable, allowing any combination to be mounted together (face-to-face, back-to-back, or tandem) without a loss in preload or performance, simplifying installation and inventory.
- High Rigidity & Stability: The use of high-grade chrome steel for rings and balls, combined with the precise manufacturing, ensures high system rigidity and long-term dimensional stability.
71916 CE/P4ADGA Bearing Typical Application Areas
This precision angular contact bearing is engineered for high-performance applications, including:
- Machine Tool Spindles: For CNC machining centers, grinding spindles, and milling heads requiring high speed, accuracy, and rigidity.
- High-Frequency Motors & Spindles: Used in applications where minimal friction and heat generation are paramount.
- Precision Instrumentation: Including coordinate measuring machines (CMM) and optical scanners.
- Robotics: Particularly in high-precision robotic arm joints and rotary actuators.
