NYCO GREASE GN 05

Nyco Grease GN 05 is a heavy duty NLGI 2 aircraft grease based on a high viscosity mineral oil thickened by clay. It has good resistance to water washout and excellent load carrying capacity. Its typical operating temperature range is −18 to 149 °C. It is used for heavy duty wheel bearings, wheels, starter magnetos and generators, and military automotive components (truck electric retarder TELMA). It should not be used below −15 °C without a warm-up period at idle/low speed to allow the grease to soften and circulate into the bearing parts. It can be technically replaced by Nyco Grease GN 22 (MIL-PRF-81322) or GN 3058 (SAE-AMS-3058).

Typical Properties

• Smooth, homogeneous brown paste; dropping point 270 °C
• Penetration: unworked 254, 60 strokes 284, 100,000 strokes 350
• Evaporation loss (100 °C, 22 hours) 0.4%; oil separation (100 °C, 30 hours) 0.8%
• Copper corrosion (100 °C, 24 hours) 1a; torque at −18 °C starting/1 hour 0.3/0.05 N·m
• Water washout (40 °C) 2%; bearing performance at 149 °C 860 hours