71916 ACE/P4ADGA
71900 Series Super Precision Angular Contact Ball Bearings
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Part No.
Part No.
71916 ACE/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
25 °
Ball & Washer Dimensions
Ball diameter
9.525 mm
Ball quantity
24
Performance
Temperature range
- 30°C to 110 °C
Radial dynamic load rating
7898 lbf
Radial static load rating
7538 lbf
Limiting speed
17 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 ACE/P4ADGA Bearing Product Overview & Core Advantages
The 71916 ACE/P4ADGA is a super-precision angular contact ball bearing designed for applications demanding exceptional rotational accuracy and high-speed performance. As a universal matchable (SU) bearing supplied in a pre-lubricated and open configuration, it is engineered to accommodate combined loads (radial and axial) simultaneously. Its P4A tolerance class and extra light preload (Class A) ensure smooth, quiet operation with minimal heat generation, making it ideal for high-reliability, high-precision machinery.
71916 ACE/P4ADGA Bearing Model Code Explained, Specifications & Naming Convention
The model number 71916 ACE/P4ADGA is decoded as follows:
- 71916: Basic series designation for a super-precision angular contact ball bearing.
- ACE: Specific internal design and contact angle (25°).
- P4A: Denotes a super-precision tolerance class exceeding ABEC 7/ISO Class 4, with specific running accuracy requirements.
- DGA: Indicates the bearing is universal matchable (SU) and can be mounted in any combination (face-to-face, back-to-back, or tandem) with other bearings of the same type to achieve the desired rigidity and load capacity.
71916 ACE/P4ADGA Bearing Structural Features & Performance Benefits
- High Rigidity and Precision: Manufactured to P4A tolerance class with extremely tight dimensional runouts, this bearing provides superior shaft guidance and rotational accuracy for critical applications.
- Optimized for Combined Loads: The 25° contact angle is optimally balanced to handle significant axial loads in one direction while supporting substantial radial loads.
- High-Speed Capability: The lightweight phenolic resin cage ensures excellent dimensional stability and low centrifugal forces, contributing to a high limiting speed of 17,000 rpm.
- Universal Matching (SU): This feature allows for flexible mounting arrangements. Two or more bearings can be paired to increase system rigidity and load-carrying capacity without selective matching.
- Premium Materials: Constructed from chrome steel for both rings and balls, ensuring high durability, wear resistance, and long service life under demanding conditions.
71916 ACE/P4ADGA Bearing Typical Application Areas
This bearing is ideally suited for high-performance applications where precision and speed are critical, including:
- Machine Tool Spindles for milling, grinding, and turning centers
- High-Frequency Spindles
- Precision Gearboxes
- Industrial Pumps and Compressors
- Medical and Laboratory Equipment
- Robotic Arms and Precision Actuators
