Limited Warranty Superior Gearbox Company warrants its products to be free from defects in materials and workmanship for one year from date of shipment, or in-service date. The start of the in-service date cannot exceed ship date by more than one year. It is the responsibility of the customer to provide proof of in-service date. Superior Gearbox Company will repair or replace, at its option, any item found to be defective upon inspection at our factory. Warranty claims must be made in writing to Superior Gearbox Company, and authorization for return of defective items must be obtained prior to...

Superior Gear Drives Superior gear drives are engineered to meet even your most stringent requirements. If you need large capacity and high thermal capacity in a small package, our Split Case™ aluminum gear drives are the perfect solution. Conversely, our economical iron gear drives are best suited for high capacity when your application is price sensitive and on u y Superior gear drives

About Our CompanyOver Four Decades of Quality ManufacturingSuperior Products Superior Gearbox Company has been manufacturing high quality gear drives for power transmission systems since 1975. Our gear drives include spur, helical, bevel, worm gear and spindle for various types of on and off-road applications. Superior can also custom design gear drives to meet even the most unique situations...taking products from prototype to final testing. Our methods of manufacturing, utilizing the most up-to-date engineering software in the gear drive industry, enables Superior to produce consistent, yet...

Research & DevelopmentA Visionary Commitment After almost fifty years of manufacturing gear related products for a complex array of applications, Superior Gearbox Company's engineers have carefully refined our processes to ensure quality and durability are never sacrificed. We enable this mission via an on-site, stand-alone Research and Development facility that allows our team to thoroughly test and review existing product updates, custom projects and new product development in a virtual application environment. Through this often painstaking process we are able to ferret out any irregularities...

Custom Gear DrivesSuperior Teamwork Through our experience, we have developed six distinct core capabilities: • Customer Service • Shaft Turning • Casting Machining This gives us the versatility and flexibility to modify standard products or custom design products to meet your specific requirements. Our knowledgeable sales and engineering departments work closely with you to custom design new units for your individual applications. And, we’re ready to assume as many responsibilities as necessary to ensure you have the product you need when you need it. From concept to production, you can count...

Bevel Quick Selection Guide 1 – 1 Ratio

100 Series Applications include turf equipment, mowers, sprayers, grain augers and separators, road and highway equipment. • Two-piece aluminum housing for high strength, corrosion resistance and thermal capacity • Precision machined for exact gear mesh and bearing preload • Precision forged gears are offered in three ratios: 1:1, 1.1:1 and 1.43:1 • Tapered roller bearings provide increased load capacity and bearing life • 1" shaft made of high strength steel is standard • Serviced with 80W90 gear lubricant, run and leak tested before shipment • The 100 Series weighs 7/10 lbs. including 6 oz...

Service Factors Character * Divide the horsepower rating by the service factor to obtain the design horsepower. ** AGMA Class 1 Service LIMITATIONS ON HORSEPOWER AND TORQUE RATINGS: The horsepower and torque ratings given here are generalizations. Different conditions for various applications may result in higher or lower horsepower capacities. Under certain conditions the maximum indicated rpm may be exceeded. For these reasons the ratings cannot be guaranteed for any application. Prototype testing should be conducted for each application before production.

Rating Chart Increasers I Reducers Miters 200 Series Applications include mowers, sprayers, grain augers, elevators, grain dryers and separators, small rototillers, road and highway equipment. • Two-piece aluminum housing for high strength, corrosion resistance • Precision machined for exact gear mesh and bearing preload • Precision forged gears are offered in three ratios: 1:1, 1.5:1 and 2:1 • Tapered roller bearings provide increased load capacity and bearing life • 1" shaft made of high strength steel is standard • Serviced with 80W90 gear lubricant, run and leak tested before shipment • The...

Service Factors Character * Divide the horsepower rating by the service factor to obtain the design horsepower. ** AGMA Class 1 Service LIMITATIONS ON HORSEPOWER AND TORQUE RATINGS: The horsepower and torque ratings given here are generalizations. Different conditions for various applications may result in higher or lower horsepower capacities. Under certain conditions the maximum indicated rpm may be exceeded. For these reasons the ratings cannot be guaranteed for any application. Prototype testing should be conducted for each application before production. Contact Superior Gearbox for your...

400 Series Applications include grain carts, mowers, combines, grain augers, potato harvesters, agricultural sprayers, irrigation pumps and conveyers. • Two-piece aluminum housing for high strength, corrosion resistance and thermal capacity • Precision machined for exact gear mesh and bearing preload Precision forged gears are offered in four ratios: 1:1, 1.35:1, 1.5:1 and 2:1 Spiral bevel available in 1:1 Tapered roller bearings provide increased load capacity and bearing life 1.250" shaft made of high strength steel is standard Serviced with 80W90 gear lubricant, run and leak tested before...

Service Factors * Divide the horsepower rating by the service factor to obtain the design horsepower. ** AGMA Class 1 Service SUPERIOR GEARBOX