- Supercharging vacuum pumps for better
system performance
- Increasing vacuum system capacities
- Reducing system ultimate pressures
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- Gears: Helical, ground gears for quiet operation
- Bearings:
- Gear End: Double row ball
- Free End: Cylindrical roller
- Drive Shaft: Double row ball
- Rotors: Ductile iron, integrally cast with shafts
- Lubrication: Oil splash with water
cooling coils
- Seals: Slinger seals on rotor shafts; mechanical sealing
on drive shaft
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