Vanson Engineering Pvt. Ltd. Offers Open Water Lubricated Bearing. Vanson Engineering Pvt. Ltd. Is an ISO 9001:2000 certified company. The company manufactures products for industries like Marine, Power [Thermal and Hydro], Material Handling and Cement sector. The Open Water Lubricated Bearing has been specified for the years in Naval and Coast Guard vessels. More recently, commercial owners and managers, including major cruise ship operators, are also choosing its pollution free simplicity and reliability. The Open Water Lubricated Bearing comes under the brand name "Compac" a viable alternative to conventional oil lubricated stern tube systems.