ISO VG 680 industrial gear lubricants are necessary for the seamless operation of heavy duty, industrial gearboxes. These weights refer to the oil’s viscosity.
ISO VG 680 gear lubricants have a midpoint kinematic viscosity of 680 mm2/s, also referred to as centistokes (cSt). This is the average of the minimum and maximum viscosities derived from AGMA testing (612 mPa.S and 748 mPa.S for AGMA 8).