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The 638zz is a shielded miniature ball bearing with an 8mm bore and 28mm outer diameter, crafted from durable chrome steel. It handles radial loads up to 873 lbf and spins smoothly at speeds up to 28,000 RPM.
Its stainless steel cage and shielded design keep dirt out while maintaining performance. The bearing operates well in temperatures from -30°C to 110°C and requires regular lubrication.
With a compact size of 8mm x 28mm x 9mm, it’s ideal for small machinery or hobby projects. The ABEC1 tolerance ensures reliable performance without being overly precise.
Weighing just 30.3g, it’s lightweight yet sturdy. Compliant with RoHS and REACH standards, it’s a safe choice for various applications.
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How Does 638zz Bearing Reduce Friction?
638zz Bearing features a shielded design with chrome steel rings and balls, ensuring smooth radial movement.
Its ABEC1 tolerance class provides consistent performance, reducing friction during operation.
The stainless steel cage maintains ball alignment, minimising wear and extending the bearing’s life.
With a maximum speed of 28,000 rpm, it offers reliable efficiency for miniature applications.
How Does 638zz Bearing Improve Performance?
In industrial settings, 638zz Bearing is commonly used in small motors and gearboxes, where its shielded design helps keep contaminants out while maintaining smooth rotation. The chrome steel construction ensures durability even in demanding environments.
Where Is 638zz Bearing Used?
For automotive applications, 638zz Bearing fits well in components like alternators and cooling fans, providing reliable radial load support. Its compact size and ABEC1 tolerance make it a versatile choice for various vehicle models.
Built for Heavy-Duty Use: 638zz Bearing
In consumer electronics, 638zz Bearing can be found in devices like printers and small appliances, where its stainless steel cage reduces wear over time. The shielded seals also help extend the bearing’s lifespan by preventing dust ingress.
Medical vs Industrial: Where 638zz Bearing Excels
While 638zz Bearing is suitable for industrial tools, it’s also used in medical devices like dental handpieces, thanks to its precise rotation and low maintenance needs. The metric sizing ensures compatibility with a range of equipment.
Key Fields for 638zz Bearing
In automation systems, 638zz Bearing supports small robotic arms and conveyor belts, offering consistent performance under radial loads. Its high-speed capability makes it ideal for applications requiring quick, precise movements.
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