美孚2號潤滑脂-傳熱油撫州南城縣黎川代理2號潤滑脂和3號潤滑脂的主要區(qū)別如下1： 粘度：2號潤滑脂的粘度較低，適用于低溫和高速運轉(zhuǎn)的設(shè)備。3號潤滑脂的粘度較高，適用于高溫和重負荷運轉(zhuǎn)的設(shè)備。 抗氧化性能：3號潤滑脂通常具有更好的抗氧化性能，能夠在高溫環(huán)境下保持穩(wěn)定的潤滑性能。2號潤滑脂的抗氧化性能相對差一些。 耐高溫性能：3號潤滑脂通常具有更高的耐高溫性能，能夠在高溫條件下保持潤滑效果。2號潤滑脂在高溫下可能會失去潤滑性能1。3號潤滑脂的滴點溫度高于2號4。 適用范圍：2號潤滑脂適用于低溫、高速運轉(zhuǎn)的設(shè)備，如電機軸承、風扇等。3號潤滑脂適用于高溫、重負荷運轉(zhuǎn)的設(shè)備，如軸承、齒輪等1。3號潤滑脂一般用于要求具有抗水或抗固體雜質(zhì)污染的應用中，減少設(shè)備磨損2。 軟硬度：2號潤滑脂的錐入度在265-295之間，較軟。3號潤滑脂的錐入度在220-250之間，較硬The main differences between NLGI No. 2 and No. 3 greases are as follows1: Viscosity: NL No. 2 grease has a lower viscosity, suitable for low-temperature and high-speed operating equipment. NLGI No. 3 grease has a higher viscosity, suitable for-temperature and heavy-load operating equipment. Anti-oxidation performance: NLGI No. 3 grease usually has better anti-oxidation performance, stable lubrication performance in high-temperature environments. NLGI No. 2 grease has relatively poor anti-oxidation performance. High-temperature resistance: NLGI. 3 grease usually has higher high-temperature resistance, maintaining lubrication effects under high-temperature conditions. NLGI No. 2 grease may lose its lubrication performance at temperatures1. NLGI No. 3 grease has a higher dropping point temperature than No. 24