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Amarillo Single Reduction Gearbox

The Amarillo Single Reduction Gearbox is a heavy-duty right-angle speed reducer engineered for cooling towers, air-cooled condensers, and fin-fan heat exchangers. Designed to meet or exceed AGMA and CTI standards, it delivers efficient torque transmission, dependable operation, and long service life in demanding industrial environments.

  • Industrial cooling towers
  • Air-cooled condensers
  • Fin-fan heat exchangers
  • Power generation facilities
  • Petrochemical processing plants
  • Chemical manufacturing facilities
  • Industrial HVAC cooling systems
  • OEM replacement and retrofit projects

Designed to provide reliable fan drive performance while reducing maintenance and improving equipment longevity.

  • Precision spiral bevel gearing ensures efficient power transmission and smooth operation
  • Single reduction design delivers dependable torque multiplication with minimal energy loss
  • AGMA and CTI compliant construction supports long-term industrial reliability
  • Available in multiple reduction ratios to match various cooling tower requirements
  • Built-in 2.0 service factor enhances durability under continuous-duty operation
  • Optional VFD-ready low-speed configuration improves system flexibility
  • Backstop option prevents reverse fan rotation and drivetrain damage
  • Optional oil pumps, heaters, and level switches improve gearbox protection
  • Heavy-duty housing withstands harsh cooling tower operating conditions
  • Suitable for both retrofit projects and new equipment installations

Engineered to deliver reliable performance across a wide range of cooling tower fan drive applications.

  • Gear Type: Single Reduction Spiral Bevel Gearbox
  • Configuration: Right-Angle Speed Reducer
  • Reduction Ratios: 2:1 to 9.5:1
  • Power Capacity: 7 HP to 134 HP (5.2 kW to 100 kW)
  • Service Factor: 2.0
  • Design Standards: AGMA and CTI Compliant

Available Models

Standard Fan Drive Series

  • Model 65A
  • Model 85
  • Model 110
  • Model 135
  • Model 155
  • Model 175

“A” Series Replacement Drives

  • Model A20
  • Model A22
  • Model A27