Heavy Duty Gas Blowers are available in sturdy construction to ensure durability of operation for longer period of time. These Gas Blowers are provided with angular contact ball bearings at non-drive end, which eliminates the chances of shifting of the lobes or rotors to either side. Gas Blowers are available with large oil sumps on drive and non-drive ends. Heavy Duty Gas Blowers are most suitable for running at higher speeds up to 4000 RPM.