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Table 20-5   Industrial Gear Oil

Types of Industrial Gear Oil Usage Class One ISO VG    32 ISO VG    46 ISO VG    68 ISO VG   100 ISO VG   150 ISO VG   220 ISO VG   320 ISO VG   460 Mainly used in a general and lightly loaded enclosed gear system Class Two ISO VG    68 ISO VG   100 ISO VG   150 ISO VG   220 ISO VG   320 ISO VG   460 ISO VG   680 Mainly used in a general medium to heavily loaded enclosed gear system

Table 20-6   NLGl Viscosity Grades

NLGl No. Viscosity Range State Application No. 000 No.  00 No.    0 No.    1 No.    2 No.    3 No.    4 No.    5 No.    6 445 ... 475 400 ... 430 335 ... 385 310 ... 340 265 ... 395 220 ... 250 175 ... 205 130 ... 165 85 ... 115 Semi-liquid Semi-liquid Very soft paste Soft paste Medium firm paste Semi-hard paste Hard paste Very hard paste Very hard paste

Table 20-7   AMGA Viscosity Grades

AGMA No. of Gear Oil ISO Viscosity Grades R & O Type EP Type   1   2   3   4   5   6   7  7 comp   8  8 comp       8A comp   9   2 EP 3 EP 4 EP 5 EP 6 EP 7 EP 8 EP   9EP   VG 46   VG 68   VG 100   VG 150   VG 220   VG 320   VG 460   VG 680   VG 1000   VG 1500

Table 20-8  Recommended Lubricants by AGMA

Gear Type Size of Gear Equipment (mm) Ambient temperature ºC -10 ... 16 10 ... 52 AGMA No. Parallel Shaft System Single Stage Reduction Center Distance (Output Side) Less than 200 200 ... 500 more than 500 2 to 3 2 to 3 3 to 4 3 to 4 4 to 5 4 to 5 Double Stage Reduction Less than 200 200 ... 500 More than 500 2 to 3 3 to 4 3 to 4 3 to 4 4 to 5 4 to 5 Triple Stage Reduction Less than 200 200 ... 500 More than 500 2 to 3 3 to 4 4 to 5 3 to 4 4 to 5 5 to 6 Planetary Gear System Outside Diameter of Gear Casing Less than 400 More than 400 2 to 3 3 to 4 3 to 4 4 to 5 Straight and Spiral Bevel Gearing Cone Distance Less than 300 More than 300 2 to 3 3 to 4 4 to 5 5 to 6 Gearmotor 2 to 3 4 to 5 High Speed Gear Equipment 1 2

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