S71914 ACB/P4ADT
Sealed Super Precision Angular Contact Ball Bearings
Image may differ from product. See technical specification for details.
Part No.
Part No.
S71914 ACB/P4ADT
Basic Information
System of measurement
Metric
Weight
0.72 kg
Tolerance class
P4A
Seal type
Sealed
For load direction
Angular Contact
Main Dimensions
Bore diameter
70 mm
Bore diameter tolerance
-0.004mm to 0
Outside diameter
100 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
6.35 mm
Ball quantity
32
Performance
Temperature range
- 30°C to 110 °C
Radial dynamic load rating
4770 lbf
Radial static load rating
5310 lbf
Limiting speed
22 X 1000 rpm
Lubrication
Grease
Matched arrangement
Duplex Tandem (DT)
Number of bearings in matched set
2
Universal matching bearing
No (Standard)
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
In Stock
Price available upon request.
Our sales team will respond within 24 hours with a competitive quote tailored to your requirements.
REQUEST A QUOTE
- Fast delivery
- Enjoy discounts on bulk purchases
- Secure Payment
- Fast Global Shipping
S71914 ACB/P4ADT Bearing Product Overview & Core Advantages
The S71914 ACB/P4ADT is a precision angular contact ball bearing designed for demanding applications requiring exceptional accuracy and performance. This matched duplex tandem (DT) arrangement consists of two bearings pre-loaded to deliver superior high rigidity and axial stability. Its P4A tolerance class ensures extremely tight dimensional and running accuracy, making it ideal for high-speed spindles and precision machinery where minimal runout and vibration are critical. The combination of a phenolic cage and factory-applied grease lubrication enables reliable operation at its high limiting speed.
S71914 ACB/P4ADT Bearing Model Code Explained, Specifications & Naming Convention
| Suffix Code | Technical Meaning |
|---|---|
| ACB | Indicates a specific contact angle of 25°, optimized for handling substantial axial loads in one direction. |
| P4A | Denotes a very high tolerance class with enhanced running accuracy requirements beyond standard P4, ensuring superior performance in precision applications. |
| DT | Signifies a Duplex Tandem matched set. Two bearings are mounted together to increase axial load capacity and rigidity in a single direction. |
S71914 ACB/P4ADT Bearing Structural Features & Performance Benefits
- High Rigidity and Load Capacity: The duplex tandem arrangement and 25° contact angle work in concert to provide exceptional stiffness and the ability to withstand high combined loads, particularly thrust loads in one direction.
- High-Speed Performance: The lightweight phenolic resin cage reduces centrifugal forces, while the pre-applied grease lubrication is formulated for high-speed operation, collectively enabling a high limiting speed of 22,000 rpm.
- Precision Engineering: Manufactured to P4A super-precision tolerance, this bearing guarantees minimal rotational vibration and precise shaft positioning, which is critical for achieving high surface finishes and machining accuracy.
- Sealed and Lubricated for Life: As a sealed bearing unit, it is protected from contamination and comes pre-lubricated, offering a maintenance-free solution within its specified temperature range.
S71914 ACB/P4ADT Bearing Typical Application Areas
This bearing is engineered for high-performance applications, including:
- Machine Tool Spindles: High-speed milling, grinding, and turning centers.
- Precision Spindles: PCB drilling, semiconductor manufacturing equipment.
- High-Frequency Motors: Spindles for routers and other high-RPM electric motors.
- Medical and Dental Equipment: High-speed handpieces and precision rotary tools.
