What is DN Value?
DN values allow easy comparison between different bearing designs and lubricant choices. More sophisticated bearing systems result in higher DN values and, in comparison, lower DN values are associated with less sophisticated bearing design. DN values provide direct correlation to grease selection.
DN Value Formula
DN =nmax ‧ dN
nmax Maximum speed [rpm]
dN Nominal diameter [mm]
DN Driving speed value
什麼是 DN值?
DN 值使不同的軸承設計和潤滑劑選擇之間的比較更加簡單。更複雜的軸承設計（如高速軸承）通常具有較高的 DN 值，相較之下，較低的 DN 值則與較慢速、較重負載的軸承設計相關聯。DN 值與潤滑脂的選擇有直接的關聯性。
DN值 公式
DN =nmax ‧ dN
nmax 最高轉速 [rpm]
dN 公稱外徑 [mm]
DN 軸承DN值
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