S71916 ACDGB/P4A
Sealed Super Precision Angular Contact Ball Bearings
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Part No.
Part No.
S71916 ACDGB/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
25 °
Ball & Washer Dimensions
Ball diameter
9.525 mm
Ball quantity
27
Performance
Temperature range
- 30°C to 110 °C
Radial dynamic load rating
7762 lbf
Radial static load rating
8212 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
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
Price:
$ 153.83
/ each
In Stock
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S71916 ACDGB/P4A Bearing Product Overview & Core Advantages
The S71916 ACDGB/P4A is a precision angular contact ball bearing designed for high-performance applications requiring exceptional accuracy and reliability. This single bearing features a 25° contact angle and is part of a Universal Matchable (SU) set, enabling it to handle significant combined loads (radial and axial) simultaneously. Manufactured to the exacting P4A tolerance class, it offers superior running accuracy, making it ideal for high-speed spindles and other precision machinery where high rigidity and minimal runout are critical.
S71916 ACDGB/P4A Bearing Model Code Explained, Specifications & Naming Convention
The model number S71916 ACDGB/P4A provides detailed technical specifications through its suffixes:
- S: Denotes a bearing with a super-precision level of running accuracy.
- 7: Indicates an angular contact ball bearing design.
- 1916: Specifies the size series, with a bore diameter of 80 mm, an outside diameter of 110 mm, and a width of 16 mm.
- AC: Stands for a 25° contact angle, optimized for high axial load capacity.
- D: Signifies a light preload (Class B), which enhances system rigidity and minimizes deflection under load.
- GB: Represents the cage material, which is Phenolic, offering low weight and excellent performance at high speeds.
- P4A: The tolerance class, indicating extremely tight dimensional and running accuracy tolerances superior to ABEC 7.
S71916 ACDGB/P4A Bearing Structural Features & Performance Benefits
- High Rigidity and Load Capacity: The optimized 25° contact angle and light preload provide superior stiffness, enabling the bearing to effectively support combined radial and axial loads. With a dynamic load rating of 7762 lbf and a static load rating of 8212 lbf, it is built for demanding applications.
- Superior High-Speed Performance: The lightweight phenolic cage (GB) and precision-ground chrome steel components minimize centrifugal forces and friction, allowing for a high limiting speed of 28,000 rpm.
- Precision and Longevity: Manufactured to P4A tolerances, this bearing ensures minimal vibration and heat generation. The sealed design with pre-applied grease lubrication protects against contamination and provides reliable operation within a temperature range of -30°C to 110°C.
- Optimized Internal Geometry: The bearing incorporates 27 high-grade chrome steel balls with a diameter of 9.525 mm, precisely arranged to distribute loads evenly and maximize service life.
S71916 ACDGB/P4A Bearing Typical Application Areas
This precision angular contact ball bearing is ideally suited for high-performance machinery and systems, including:
- Machine Tool Spindles: For high-speed milling, grinding, and turning centers requiring extreme accuracy and rigidity.
- Precision Spindles: In applications such as PCB drilling, semiconductor manufacturing, and optical lens grinding.
- High-Speed Motors: Used in electric motors and generators that operate at very high rotational speeds.
- Medical and Laboratory Equipment: In centrifuges and other devices where quiet, precise, and reliable rotation is essential.
