S71916 ACD/P4ADGB
Sealed Super Precision Angular Contact Ball Bearings
Image may differ from product. See technical specification for details.
Part No.
Part No.
S71916 ACD/P4ADGB
Basic Information
System of measurement
Metric
Weight
0.76 kg
Tolerance class
P4A
Seal type
Sealed
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
27
Performance
Temperature range
- 30°C to 110 °C
Radial dynamic load rating
12578 lbf
Radial static load rating
16538 lbf
Limiting speed
28 X 1000 rpm
Lubrication
Grease
Matched arrangement
Universal Matchable (SU)
Number of bearings in matched set
2
Universal matching bearing
Universal Matchable (SU)
Preload
Light / Class B
Materials
Ring material
Chrome Steel
Ball material
Chrome Steel
Cage material
Phenolic
Technical Drawings
No drawings available at the moment, will be launched soon
In Stock
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S71916 ACD/P4ADGB Bearing Product Overview & Core Advantages
The S71916 ACD/P4ADGB is a precision angular contact ball bearing designed for demanding applications requiring exceptional accuracy and reliability. This double row angular contact ball bearing excels at handling combined loads, simultaneously supporting substantial radial loads and bidirectional axial loads. Its compact design, featuring two rows of balls, offers high rigidity and rotational accuracy. Manufactured to a P4A tolerance class and preloaded, it is ideally suited for high-precision spindles and other machinery where minimal runout and superior performance are critical.
Model Code Breakdown
| Code Segment | Technical Meaning |
|---|---|
| S | Stainless Steel Bearing Ring |
| 7 | Angular Contact Ball Bearing |
| 1916 | Bore Diameter: 80 mm, Outer Diameter: 110 mm, Width: 32 mm |
| ACD | 25° Contact Angle, Double Row Design |
| P4A | High Precision Bearing Tolerance Class (exceeding ABEC 7) |
| DGB | Universal Matchable (SU), Light Preload (Class B) |
S71916 ACD/P4ADGB Bearing Structural Features & Performance Benefits
- High Rigidity and Stability: The double row ball complement and optimized 25° contact angle provide superior high rigidity, effectively resisting operational moments and ensuring shaft stability under complex loading conditions.
- Superior Load Capacity: Engineered to handle significant combined loads, including heavy radial loads and thrust loads in both directions, making it a versatile solution for demanding applications.
- Precision and High-Speed Capability: The phenolic resin cage offers excellent strength-to-weight ratio, contributing to lower inertia and enabling smooth operation at the high limiting speed of 28,000 rpm. The P4A dimensional and running accuracy ensures minimal vibration and heat generation.
- Matched Set & Preload: Designated as Universal Matchable (SU), these bearings can be mounted in pairs (back-to-back, face-to-face, or tandem) without selective assembly to achieve the desired preload and system rigidity. The light preload (Class B) minimizes axial and radial play for precise positioning.
S71916 ACD/P4ADGB Bearing Typical Application Areas
This precision bearing is ideally suited for high-performance applications, including:
- Machine Tool Spindles: High-speed milling, grinding, and turning centers.
- Precision Instrumentation: Measuring devices and optical scanners.
- High-Frequency Motors and Spindles: Where high rotational accuracy and speed are paramount.
- Robotics: Articulated arms and precision gearboxes.
- Medical Equipment: Dental handpieces and imaging devices.
