These features support reliable cooling tower operation, reduced maintenance needs, and long-term gearbox performance.
- Precision spiral bevel gears provide smooth and efficient power transmission.
- Single reduction right-angle design helps reduce electric motor speed to proper fan speed.
- AGMA and CTI compliant construction supports demanding cooling tower applications.
- Service ratings include a 2.0 service factor for cooling tower fan duty.
- Efficiency normally ranges from 95% to 98% depending on speed, power, and thrust.
- Heavy-duty cast housing absorbs internal and external structural loads.
- High thrust capacity supports large cooling tower fan drive requirements.
- Case-hardened alloy steel gears improve strength, durability, and quiet operation.
- Spring-loaded shaft seals help block dirt, moisture, and debris.
- Long bearing life supports continuous-duty operation with reduced maintenance.
- Suitable for OEM replacement, cooling tower retrofit, and new equipment installation.
These specifications define the Model 175 gearbox’s performance capacity, construction quality, and operating requirements.
- Product Model: Amarillo Right Angle Gear Drive Model 175
- Gear Drive Type: Single Reduction Right Angle Gearbox
- Manufacturer: Amarillo Gear Company
- Primary Use: Cooling Tower and Air-Fin Heat Exchanger Fan Drives
- Maximum Structural Power Rating: Up to 145 HP
- Service Horsepower at 1750 RPM Input: 126 HP to 50 HP depending on reduction ratio
- Service Factor: 2.0
- Efficiency Range: 95% to 98% under normal operating conditions
- Available Reduction Ratios: 5.5:1, 6:1, 6.5:1, 7:1, 7.5:1, 8:1, 8.5:1, 9:1, 9.5:1
- Ratio Type: Input Speed to Output Speed
- Thrust Capacity: Up to 5,150 lbs downward axial load
- Oil Capacity: 5.5 gallons / 21 liters
- Approved Oil Type: ISO 220 / AGMA 5 or 5S
- EP Additives: Not Recommended
- Unit Weight: 855 lbs / 388 kg
- Gear Type: Precision Spiral Bevel Gears
- Housing Construction: Heavy-Duty Rigid Cast Housing
- Seal Type: Spring-Loaded Single-Lip Shaft Seals
