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The R3 is a small, inch-sized miniature ball bearing with a 0.1875″ bore and 0.5″ outer diameter, crafted from durable chrome steel. It handles radial loads up to 249 lbf and spins smoothly at speeds up to 43,000 RPM.
Its open design allows for easy lubrication, while the stainless steel cage ensures reliable performance. The bearing operates well in temperatures ranging from -86°F to 230°F.
With a compact width of just 0.1562″, it fits snugly in tight spaces. Ideal for small machinery, hobby projects, or precision instruments where space and performance matter.
Weighing only 2.21g, it’s lightweight yet sturdy. Compliant with RoHS and REACH standards for safe use.
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Why Choose R3 Bearing for Precision Tasks?
R3 Bearing features a compact design with a 0.1875″ bore, making it ideal for precision applications.
Its chrome steel construction ensures durability and smooth operation under radial loads.
With a dynamic radial load capacity of 249 lbf, it handles demanding tasks efficiently.
The ABEC1 tolerance class guarantees consistent performance in high-speed operations up to 43,000 rpm.
How Does R3 Bearing Reduce Friction?
R3 Bearing’s chrome steel balls and rings are designed to minimise friction during operation.
The stainless steel cage maintains proper ball alignment, reducing wear and ensuring smooth rotation.
Its radial clearance of 0.00008″ to 0.0005″ optimises performance while keeping friction low.
This design makes R3 Bearing suitable for applications requiring precise, low-friction movement.
Built for Reliability: R3 Bearing
R3 Bearing’s chrome steel construction provides excellent resistance to wear and tear.
It operates effectively in temperatures ranging from -86 to 230 °F, ensuring reliability in various environments.
The bearing’s 7-ball design distributes loads evenly, enhancing its service life.
With proper lubrication, R3 Bearing maintains consistent performance over extended periods.
Common Applications of R3 Bearing
R3 Bearing is widely used in small electric motors, where its compact size and radial load capacity make it ideal for tight spaces. The open design allows for easy lubrication, ensuring smooth operation over time.
In robotics, R3 Bearing provides reliable performance in joints and pivots, thanks to its stainless steel cage and chrome steel construction. Its lightweight design also helps reduce overall system weight.
For consumer electronics like printers and small fans, R3 Bearing’s high-speed capability ensures quiet and efficient operation. The ABEC1 tolerance class offers a good balance of precision and affordability for these applications.
Medical devices such as dental tools benefit from R3 Bearing’s consistent performance and resistance to wear. The inch sizing makes it compatible with many North American equipment standards.
In industrial automation, R3 Bearing is often found in conveyor systems and small gearboxes. Its dynamic radial load capacity handles moderate stresses while maintaining durability.
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