S71914 ACD/P4A
Sealed Super Precision Angular Contact Ball Bearings
Image may differ from product. See technical specification for details.
Part No.
Part No.
S71914 ACD/P4A
Basic Information
System of measurement
Metric
Weight
0.34 kg
Tolerance class
P4 (ABEC-7)
Seal type
Sealed
For load direction
Angular Contact
Main Dimensions
Bore diameter
70 mm
Bore diameter tolerance
-0.007mm to 0
Outside diameter
100 mm
Outside diameter tolerance
-0.008mm to 0
Width
16 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° to 110 °C
Radial dynamic load rating
7312 lbf
Radial static load rating
7312 lbf
Limiting speed
11 X 1000 rpm
Lubrication
Lubricated
Matched arrangement
Single
Preload
Available
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:
$ 850.5
/ each
In Stock
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S71914 ACD/P4A Bearing Product Overview & Core Advantages
The S71914 ACD/P4A is a single-row angular contact ball bearing designed for applications demanding high precision and superior rotational accuracy. Engineered to accommodate combined loads, it efficiently handles both radial and substantial axial loads in one direction. Its compact design, featuring a P4 (ABEC-7) tolerance class and a 25° contact angle, makes it an ideal solution for high-speed spindles and other precision machinery requiring exceptional rigidity and operational reliability.
S71914 ACD/P4A Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| S | Indicates a super-precision bearing. |
| 7 | Denotes an angular contact ball bearing design. |
| 1914 | Specifies the bearing dimensions: 70mm bore, 100mm OD, 16mm width. |
| ACD | Signifies a 25° contact angle and that the bearing is supplied with a preload for immediate high-rigidity performance. |
| P4A | Defines the tolerance class (P4 / ABEC-7) and specific accuracy requirements for the bearing's running accuracy. |
S71914 ACD/P4A Bearing Structural Features & Performance Benefits
- High Rigidity and Precision: The single-row design with a 25° contact angle and factory-applied preload ensures high system stiffness, minimizing deflection under load for superior machining accuracy.
- Optimized Load Capacity: Engineered to support significant combined radial and axial loads simultaneously, making it suitable for applications with complex loading conditions.
- Exceptional High-Speed Performance: The lightweight phenolic resin cage and precision-ground chrome steel components contribute to low friction and a high limiting speed of 11,000 rpm.
- Sealed and Lubricated for Life: As a sealed and pre-lubricated unit, it is protected from contamination and is designed for long service life in its specified temperature range (-30°C to 110°C), reducing maintenance needs.
S71914 ACD/P4A Bearing Typical Application Areas
This bearing is ideally suited for high-performance applications, including:
- Machine Tool Spindles (e.g., CNC milling and grinding machines)
- High-Speed Machining Centers
- Precision Robotics and Automation Equipment
- High-Frequency Spindles
