荆门沙洋钟祥市壳牌空压机油-润滑脂销售dia润滑脂1号、2号、3号的区别主要体现在稠度等级上，这是根据NLGI（美国国家润滑脂协会）的分类标准划分的。1号润滑脂最软，稠度等级最低，适用于低温或高速轴承；2号润滑脂稠度中等，是最常用的通The difference between lubricating grease No. 1, No. 2, and No. 3 mainly lies in the consistency grade, which is classified according to the NLGI (National Lubricating Oil Institute) classification standards. Lubricating grease No.1 is the softest and has the lowest consistency grade, suitable for low-temperature or high-speed bearings; No.2 lubricating grease has a medium viscosity and is the most commonly used lubricant