Brass Spacer Sleeve 28*35*25/28*35*40

Effectively reduce vibration and noise
A continuous and stable oil film can effectively buffer micro impacts and vibrations between the shaft and sleeve, making transmission or motion smoother. Meanwhile, compared to dry friction, oil film lubrication significantly reduces direct scratching between metals, thereby significantly reducing operating noise. This feature makes it highly favored in applications that require noise control, such as office equipment, precision instruments, car seat adjusters, power tools, etc.
Good inclusivity and economy
The porous structure of powder metallurgy has a certain degree of elasticity and can absorb small debris generated by processing or assembly errors, avoiding scratching the shaft neck. Meanwhile, as a large-scale, near net forming manufacturing process, powder metallurgy can produce complex shaped and precisely sized liners at extremely low cost and high efficiency, with a material utilization rate close to 100%. This makes it highly cost-effective in industries that require extensive use of sliding bearings, such as the automotive industry and general machinery.
Excellent heat dissipation and corrosion resistance
The good thermal conductivity of copper based materials helps to quickly dissipate the heat generated by friction, preventing lubricating oil failure or material softening caused by local overheating. In addition, by adjusting the composition (such as adding nickel, tin, etc.) or post-processing (such as phosphating, passivation), the lining can be endowed with a certain degree of corrosion resistance and adapted to environments with humidity or corrosive media.

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