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The MR31 is a compact miniature ball bearing with a 1mm bore and 3mm outer diameter, crafted from durable chrome steel. It handles radial loads up to 22 lbf and spins smoothly at speeds up to 117,000 RPM.
Its open design allows for easy lubrication, while the stainless steel cage ensures reliable performance. The bearing operates well in temperatures from -30°C to 110°C.
This single-row bearing is ideal for small, precision applications like miniature motors or delicate instruments. Its lightweight design, at just 0.04g, makes it perfect for compact devices.
Compliant with RoHS and REACH standards, it’s a safe and efficient choice for various lightweight applications. The ABEC1 tolerance ensures decent precision for general use.
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Why Choose MR31 Bearing for Precision Tasks?
MR31 Bearing’s compact size of 1 mm×3 mm×1.5 mm makes it ideal for precision instruments requiring minimal space.
Its chrome steel construction ensures durability and smooth operation under radial loads.
With a dynamic radial load capacity of 22 lbf, MR31 Bearing handles small but critical applications effectively.
The stainless steel cage maintains ball alignment, reducing friction and wear.
MR31 Bearing operates at speeds up to 117,000 rpm, balancing performance and longevity.
Its ABEC1 tolerance class guarantees consistent precision in demanding conditions.
The open design simplifies lubrication, ensuring optimal performance throughout its service life.
MR31 Bearing’s temperature range of -30° to 110 °C makes it versatile for various environments.
Ideal for Precision: MR31 Bearing
MR31 Bearing is commonly used in small-scale industrial equipment, such as miniature motors and precision instruments, where its compact size and radial load capacity are beneficial. The open design ensures easy lubrication access, extending its service life.
In the automotive sector, MR31 Bearing fits well in compact components like fuel injectors or small actuators, thanks to its 1 mm bore diameter. Its chrome steel construction provides reliable performance even in tight spaces.
For medical devices, MR31 Bearing’s high-speed capability makes it suitable for delicate tools like dental handpieces or surgical instruments. The stainless steel cage adds durability, ensuring smooth operation during critical procedures.
In consumer electronics, MR31 Bearing works efficiently in devices like miniature fans or small printers, where low noise and smooth rotation are key. Its lightweight design at just 0.04 g makes it ideal for portable gadgets.
Automation systems benefit from MR31 Bearing in applications like robotic arms or 3D printers, where precise movement is essential. The ABEC1 tolerance class ensures consistent performance in repetitive tasks.
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