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The 638 is a compact radial ball bearing with an 8mm bore and 28mm outer diameter, crafted from sturdy chrome steel. It supports dynamic radial loads up to 873 lbf and spins smoothly at speeds up to 28,000 RPM.
Its open design simplifies lubrication, while the stainless steel cage ensures durability. The bearing operates reliably in temperatures from -30°C to 110°C.
With a lightweight build at just 28.1g, it’s easy to handle and install. Ideal for small machinery, hobby projects, or applications where space is limited.
Compliant with RoHS and REACH standards, it’s a safe and practical choice for various uses. The ABEC1 tolerance ensures consistent performance without overcomplicating precision needs.
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How Does 638 Bearing Reduce Friction?
638 Bearing features a single-row design with chrome steel rings and balls, ensuring smooth radial load handling.
Its ABEC1 tolerance class and MC3 radial clearance provide consistent performance with minimal friction.
The stainless steel cage maintains proper ball alignment, reducing wear and enhancing operational efficiency.
With a maximum speed of 28,000 rpm, 638 Bearing balances high-speed capability and durability.
Common Applications of 638 Bearing
The 638 Bearing is widely used in small electric motors, such as those found in household appliances and power tools. Its compact size and reliable performance make it a go-to choice for light to moderate radial loads.
Industrial Uses of 638 Bearing
In conveyor systems and packaging machinery, 638 Bearing ensures smooth operation with its open design and ABEC1 tolerance. The chrome steel construction provides durability in continuous-use environments.
Where Is 638 Bearing Used?
You’ll often find 638 Bearing in printers and scanners, where its precision helps maintain consistent paper feed. The stainless steel cage adds longevity, even in high-speed applications.
Built for Versatility: 638 Bearing
From hobbyist drones to industrial fans, 638 Bearing handles a variety of tasks with ease. Its lightweight design and high-speed capability make it adaptable to many scenarios.
Automotive vs Aerospace: Applications of 638 Bearing
In automotive applications, 638 Bearing supports small components like alternators, while in aerospace, it’s used in instrumentation due to its precision. The metric sizing ensures compatibility across industries.
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