S71916 CDGC/P4A
Sealed Super Precision Angular Contact Ball Bearings
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Part No.
Part No.
S71916 CDGC/P4A
Basic Information
System of measurement
Metric
Weight
0.38 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
16 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
8190 lbf
Radial static load rating
8775 lbf
Limiting speed
28 X 1000 rpm
Lubrication
Grease
Matched arrangement
Single
Number of bearings in matched set
2
Universal matching bearing
Universal Matchable (SU)
Preload
Moderate / Class C
Materials
Ring material
Chrome Steel
Ball material
Chrome Steel
Cage material
Phenolic
Technical Drawings
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In Stock
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S71916 CDGC/P4A Bearing Product Overview & Core Advantages
The S71916 CDGC/P4A is a precision angular contact ball bearing designed for applications demanding exceptional accuracy and rigidity. Engineered to the P4A tolerance class, it offers superior running accuracy and dimensional stability. This bearing is capable of supporting combined loads (both radial and axial loads) simultaneously, making it ideal for high-speed, high-precision spindles. Its compact design and universal matchable (SU) feature allow for flexible mounting arrangements in pairs to increase rigidity and moment load capacity.
S71916 CDGC/P4A Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| S71916 | Denotes the bearing series and size. The "S" prefix often indicates a special design or high-precision series. |
| C | Specifies a 15° contact angle, optimized for high-speed operation and moderate axial load capacity. |
| DG | Indicates a Universal Matchable (SU) bearing. Two bearings can be mounted in any combination (face-to-face, back-to-back, or tandem) without pre-load loss. |
| C | Specifies a Moderate Preload (Class C), providing enhanced rigidity for demanding applications. |
| P4A | The tolerance class, signifying very high precision with strict limits on dimensional and running accuracy. |
S71916 CDGC/P4A Bearing Structural Features & Performance Benefits
- High Rigidity and Precision: Manufactured to P4A tolerance standards with a moderate preload (C), this bearing delivers exceptional rotational accuracy and stiffness, minimizing deflection under load.
- Superior Load Capacity: The 15° contact angle and high-quality chrome steel construction provide excellent performance under combined radial and axial loads.
- Optimized High-Speed Performance: The lightweight phenolic resin cage ensures stable operation and low friction at the high limiting speed of 28,000 rpm.
- Sealed and Pre-Lubricated: As a sealed bearing with factory-applied grease lubrication, it is protected from contamination and offers long-term, maintenance-free operation within a temperature range of -30°C to 110°C.
S71916 CDGC/P4A Bearing Typical Application Areas
This high-precision bearing is ideally suited for demanding applications where speed, accuracy, and rigidity are critical. Key industries and machinery include:
- Machine Tool Spindles (High-speed machining centers, grinding spindles)
- Precision Instrumentation
- High-Frequency Motors
- Medical Equipment Spindles
- Aerospace Control Systems
