AR1670 | Gear Box for XW Pump, 1:2 Ratio, 1-1/8 in Shaft

AR1670 | Gear Box for XW Pump, 1:2 Ratio, 1-1/8 in Shaft

AR AR1670 Gear Box for XW Series Pumps
The AR AR1670 gear box is a precision-engineered reduction unit developed by Annovi Reverberi to deliver
efficient, controlled torque transfer and stable mechanical alignment for AR XW series pumps. Designed
with a 1:2 reduction ratio and featuring a 1-1/8-inch shaft, this gear box optimizes power delivery from
the engine to the pump so the system operates at its ideal speed for maximum performance and longevity.
Built for professional and industrial applications, the AR1670 combines robust materials, exact
machining, and superior load handling to ensure quiet, vibration-free operation and long-term durability
under continuous high-pressure use.

Heavy-Duty Housing & Corrosion Resistance

Constructed from heavy-duty cast aluminum or alloy steel, the AR1670 housing provides exceptional
structural rigidity while remaining relatively lightweight to simplify installation and reduce frame
stress. A corrosion-resistant finish protects against oxidation, water exposure, and detergents, making
the gear box well suited to harsh cleaning environments. The solid, compact design minimizes vibration,
noise, and mechanical stress, maintaining precise gear alignment throughout extended operating periods.
This durability and stability make the AR1670 ideal for industrial cleaning, fleet maintenance, and
commercial pressure washing systems.

Precision 1:2 Reduction & Internal Gear Set

Inside the AR1670, precision-ground hardened steel gears provide smooth, efficient power transmission and
reliable performance. The 1:2 reduction ratio effectively reduces input speed while increasing torque
output to the pump, ensuring AR XW series pumps run in their optimal RPM range. This controlled speed
conversion enhances efficiency, reduces engine wear, and prevents over-speeding that can cause mechanical
strain or shortened pump life. The gears operate in a sealed oil bath that supplies constant lubrication,
lowers friction, and extends internal component life while maintaining quiet operation.

1-1/8″ Shaft Coupling & Alignment

The 1-1/8-inch input shaft is engineered for a precise, slip-free fit with compatible engine outputs. A
precision-cut keyway locks the connection securely, ensuring consistent torque transfer under heavy loads.
On the output side, the gear box aligns perfectly with AR XW series pumps, providing a direct, accurately
centered interface. This exact fitment eliminates shaft wobble, reduces vibration, and improves system
efficiency by maintaining proper mechanical balance between the engine and the pump.

Easy Installation & Compact Integration

Installation of the AR1670 gear box is straightforward. Its bolt pattern and flanged connections align
seamlessly with AR XW series pumps and standard engine configurations, allowing quick, secure mounting
without modification. The compact, well-balanced design integrates easily into portable carts or
stationary frames while preserving access for inspection and service. Once installed, the gear box
maintains rigid alignment and typically requires no further adjustment, providing consistent,
maintenance-free operation.

Sealed Lubrication & Long-Term Reliability

During operation, the AR1670 ensures smooth, stable power transmission across varying load conditions.
Precision-machined bearings reduce friction and support the rotating shafts, keeping alignment true even
under fluctuating torque. The sealed lubrication system keeps the gears fully immersed in oil to prevent
overheating and wear, while the closed housing protects against contamination from dirt, debris, or water.
This self-contained design extends service life and maintains high efficiency with minimal maintenance.

Professional Performance & Quality Assurance

Each AR1670 gear box is manufactured under Annovi Reverberi’s stringent quality assurance processes,
including precision machining, dynamic balance testing, and torque load verification. Every unit is
individually tested to confirm quiet operation, accurate reduction ratio, and vibration resistance before
leaving the factory. This meticulous validation ensures that the AR1670 consistently meets AR’s standards
for reliability and mechanical precision in real-world commercial and industrial service.

Key Features & Applications

• 1:2 reduction gear box for AR XW series high-pressure pumps
• 1-1/8″ input shaft with precision keyway for slip-free torque transfer
• Heavy-duty cast aluminum or alloy steel housing for strength and rigidity
• Hardened, precision-ground steel gears running in a sealed oil bath
• Corrosion-resistant finish for use in harsh, detergent-rich environments
• Pre-matched bolt pattern for fast, accurate installation to engines and XW pumps
• Reduced pump RPM for longer pump life, improved efficiency, and stable output
• Ideal for commercial pressure washers, fleet washing rigs, agricultural and industrial cleaning systems

The AR AR1670 gear box for XW series pumps, with its 1:2 ratio and 1-1/8-inch shaft,
embodies Annovi Reverberi’s dedication to precision engineering, mechanical durability, and efficiency.
With hardened steel gearing, a sealed lubrication system, and a heavy-duty housing, it delivers smooth
gear reduction, precise torque control, and long-lasting reliability. Built to enhance performance and
reduce maintenance, the AR1670 ensures steady power transfer and optimal operating speed—making it a
trusted choice for professional-grade systems that demand strength, accuracy, and continuous
high-performance operation.