NA4918 NA4919 NA4920 NA4922 NA4924 NA4928 Needle Roller Bearing

NA4918 NA4919 NA4920 NA4922 NA4924 NA4928 Needle Roller Bearing

Needle roller bearings are compact high-load bearings with slender cylindrical rollers. They are specifically designed for mechanical structures with limited radial installation space. The key feature of these bearings lies in the use of slender cylindrical rollers, with a diameter of ≤ 5mm and a length-to-diameter ratio of ≥ 2.5. This special structure enables them to have the smallest outer diameter size while maintaining a compact radial structure and high load-bearing capacity.
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KORO Mechanical Parts Manufacturing (Shandong) Co., Ltd.

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