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The 638/8-2Z is a compact single-row deep groove ball bearing, measuring 8mm by 16mm by 6mm, crafted from sturdy chrome steel. It handles radial loads up to 184 lbf and spins smoothly at speeds up to 45,000 RPM.
Its shielded design keeps grease in and dirt out, while the stainless steel cage ensures durability. The bearing operates well in temperatures from -30°C to 120°C.
This model is interchangeable with SKF bearings, making it a practical choice for replacements. Perfect for small motors or appliances where space is limited but reliability is key.
Weighing just 0.0043kg, it’s lightweight yet robust. Compliant with RoHS and REACH standards for safe use.
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Why Choose 638/8-2Z Bearing for Precision Tasks?
638/8-2Z Bearing features a shielded design, protecting against contaminants while maintaining smooth operation.
Its chrome steel construction ensures durability and resistance to wear in radial load applications.
With a dynamic radial load capacity of 184 lbf, it handles demanding tasks with ease.
The grease lubrication and stainless steel cage contribute to its long service life and low maintenance needs.
How Is 638/8-2Z Bearing Engineered for Reliability?
638/8-2Z Bearing is built with precision P6 tolerance, ensuring consistent performance in high-speed applications.
The deep groove design enhances load distribution, reducing stress on the bearing components.
Its shielded seals keep out dust and moisture, making it suitable for various environments.
With a maximum speed of 45,000 rpm, it delivers reliable operation in compact machinery.
Built for Durability: 638/8-2Z Bearing
638/8-2Z Bearing’s chrome steel rings and balls provide excellent resistance to wear and corrosion.
The stainless steel cage maintains ball alignment, ensuring smooth rotation under radial loads.
Its compact size (8 mm×16 mm×6 mm) makes it ideal for space-constrained applications.
The bearing operates efficiently in temperatures ranging from -30° to 120 °C, adapting to diverse conditions.
Steel vs Ceramic Bearings: Strengths of 638/8-2Z Bearing
638/8-2Z Bearing uses chrome steel for both rings and balls, offering a balance of strength and affordability.
This material choice ensures reliable performance in high-speed and high-load scenarios.
The shielded design protects the bearing from contaminants without compromising speed capabilities.
With a static radial load of 67 lbf, it provides stable support in precision applications.
Performance Features of 638/8-2Z Bearing
638/8-2Z Bearing excels in high-speed operations, reaching up to 45,000 rpm with minimal friction.
Its deep groove design enhances radial load capacity while maintaining smooth rotation.
The grease lubrication system reduces maintenance needs and extends operational life.
Compact and lightweight at 0.0043 kg, it fits seamlessly into small-scale mechanical systems.
Common Applications of 638/8-2Z Bearing
In small electric motors, 638/8-2Z Bearing is a reliable choice due to its compact size and shielded design, which keeps dust out while maintaining smooth rotation. The chrome steel construction ensures durability in continuous operation.
Where Is 638/8-2Z Bearing Used?
You’ll often find 638/8-2Z Bearing in household appliances like fans and blenders, where its low noise and high-speed capability are appreciated. The grease lubrication helps it run quietly for years.
Perfect Fit for Automation: 638/8-2Z Bearing
This bearing works well in small robotic arms and 3D printers, thanks to its precise P6 tolerance. The stainless steel cage adds extra resistance to wear in repetitive movements.
Light-Duty vs Heavy-Duty: Best Uses for 638/8-2Z Bearing
While 638/8-2Z Bearing excels in light-duty applications like office printers, it’s also suitable for small industrial tools where radial loads are moderate. Its temperature range makes it versatile for various environments.
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