71916 CD/P4ADGA
71900 Series Super Precision Angular Contact Ball Bearings
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Part No.
Part No.
71916 CD/P4ADGA
Basic Information
System of measurement
Metric
Weight
0.74 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
27
Performance
Temperature range
- 30°C to 110 °C
Radial dynamic load rating
13320 lbf
Radial static load rating
17550 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:
$ 416.48
/ each
In Stock
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71916 CD/P4ADGA Bearing Product Overview & Core Advantages
The 71916 CD/P4ADGA is a super-precision angular contact ball bearing designed for the most demanding high-speed and high-accuracy applications. Manufactured to the exacting P4A tolerance class, this bearing delivers exceptional rotational accuracy and running smoothness. Its 15° contact angle and universal matchable (SU) design allow for flexible mounting in preloaded pairs to achieve optimal system rigidity and handle combined loads efficiently. The phenolic cage and open design are optimized for high-speed performance, making it an ideal choice for machine tool spindles and other precision equipment.
Model Code Breakdown
| Code Segment | Technical Meaning |
|---|---|
| 71916 | Basic bearing series and size designation (80mm bore, 110mm OD, 32mm width). |
| CD | Indicates a 15° contact angle and universal matchable (SU) design. Two bearings can be mounted in a back-to-back (DB) or face-to-face (DF) arrangement. |
| P4A | Specifies the tolerance class, denoting very high precision for both dimensional and running accuracy. |
| DGA | Indicates the bearing is lubricated and specifies the type of grease used. |
71916 CD/P4ADGA Bearing Structural Features & Performance Benefits
- High Rigidity & Load Capacity: The angular contact design and ability to be mounted in preloaded pairs provide superior system rigidity, enabling the bearing to handle significant combined radial and axial loads.
- Super-Precision Performance: Manufactured to P4A tolerance class, this bearing ensures minimal runout and vibration, which is critical for achieving high surface finishes and positioning accuracy.
- Optimized High-Speed Capability: The lightweight phenolic cage reduces centrifugal forces, while the 15° contact angle and open design facilitate efficient lubrication and heat dissipation, supporting a high limiting speed of 28,000 rpm.
- Universal Matchability (SU): The universal matchable design simplifies installation and allows for precise control of preload when bearings are paired, eliminating the need for selective mounting.
71916 CD/P4ADGA Bearing Typical Application Areas
This super-precision angular contact ball bearing is engineered for high-performance applications, including:
- Machine Tool Spindles: For high-speed milling, grinding, and turning centers.
- Precision Spindles: In PCB drilling, engraving machines, and other high-precision automated equipment.
- High-Frequency Motors: Where high rotational speed and accuracy are paramount.
- Medical Equipment: Such as high-speed dental handpieces and laboratory centrifuges.
