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The 71903/VA9D1 is a super precision angular contact ball bearing with a compact size of 17mm by 30mm by 7mm. Made from chrome steel, it handles radial loads up to 893 lbf and spins smoothly at speeds up to 121,000 RPM.
Its 25° contact angle and open design make it suitable for high-speed applications. The phenolic cage ensures durability while keeping the weight light at just 0.017kg.
This bearing comes preloaded and can be paired in back-to-back, face-to-face, or tandem arrangements. It operates well in temperatures from -30°C to 110°C.
Ideal for precision machinery like spindles or dental tools where accuracy and speed are key. Compliant with P4 tolerance class for reliable performance.
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Performance Features of 71903/VA9D1 Bearing
71903/VA9D1 Bearing is crafted with chrome steel rings and balls, ensuring durability and precision.
Its 25° contact angle allows for efficient handling of combined radial and axial loads.
The phenolic cage in 71903/VA9D1 Bearing reduces friction and noise, enhancing smooth operation.
With a maximum speed of 121,000 rpm, it is suitable for high-speed applications.
71903/VA9D1 Bearing operates effectively in temperatures ranging from -30°C to 110°C.
Its P4 tolerance class ensures high precision and reliability in demanding conditions.
The open design of 71903/VA9D1 Bearing simplifies lubrication and maintenance.
Its lightweight construction at 0.017 kg makes it ideal for compact applications.
Common Applications of 71903/VA9D1 Bearing
71903/VA9D1 Bearing is widely used in high-speed machine tools, where its precision angular contact design ensures accurate spindle rotation. The open seal type allows for efficient lubrication, extending service life in demanding industrial settings.
In robotics, 71903/VA9D1 Bearing provides smooth motion control for articulated arms, thanks to its 25° contact angle and phenolic cage. Its lightweight construction also helps reduce overall system inertia.
For dental handpieces, 71903/VA9D1 Bearing’s P4 tolerance class delivers the quiet operation needed for patient comfort. The chrome steel construction maintains performance even with frequent sterilisation cycles.
Where Is 71903/VA9D1 Bearing Used?
You’ll often find 71903/VA9D1 Bearing in optical equipment like lens positioning systems, where minimal vibration is crucial. Its matched arrangement capability allows for precise alignment in sensitive instruments.
The bearing works well in small electric motors, particularly those requiring high rotational speeds up to 121,000 rpm. The lubricated design ensures consistent performance without frequent maintenance.
Built for Heavy-Duty Use: 71903/VA9D1 Bearing
71903/VA9D1 Bearing handles radial and axial loads effectively in pump applications, withstanding continuous operation in harsh environments. The phenolic cage material resists corrosion from various fluids.
In textile machinery, this bearing supports high-speed spindles while maintaining precise thread tension control. Its temperature range from -30°C to 110°C covers most production conditions.
Automotive vs Aerospace: Applications of 71903/VA9D1 Bearing
For automotive turbochargers, 71903/VA9D1 Bearing offers reliable performance at extreme speeds, helping reduce lag. The small 17mm bore fits compact turbine designs perfectly.
In aerospace instruments, the bearing’s P4 class precision ensures accurate readings in navigation systems. Its lightweight 0.017kg mass helps minimise fuel consumption in aircraft applications.
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