Bharat Shell Limited supplies Solvent-free Open Gear Lubricant. Bharat Shell Limited offers crude, products, chemicals and technology to public/private sector oil companies. Solvent-free Open Gear Lubricant is a semi-synthetic lubricant used for mining and industrial applications. Solvent-free Open Gear Lubricant is high viscosity-based with advanced additives to enhance performance under very highly loaded areas and have excellent shock loading capabilities. This open gear lubricant comes in several viscosity grades and NLGI specifications. Its brand name is Shell Malleus.