AR1694 | Gear Box, 1:2 Ratio, 3/4 in Shaft, XT/XTA

AR1694 | Gear Box, 1:2 Ratio, 3/4 in Shaft, XT/XTA

The AR AR1694 gear box is a precision-built transmission component from Annovi Reverberi
engineered to deliver smooth, efficient, and durable power transfer for XT and XTA series
high-pressure pumps. Featuring a 1:2 gear ratio and a 3/4-inch shaft, this compact gear
box is designed to optimize torque conversion and speed alignment, ensuring that pumps operate
within their ideal performance range for consistent flow, pressure, and long-term reliability.
Its rugged construction, sealed lubrication system, and precision-machined gears make it ideal for
professional and industrial applications requiring dependable performance in compact
configurations.

Housing & Construction

Constructed from heavy-duty cast aluminum or alloy steel, the AR1694 housing combines exceptional
strength with lightweight handling. The rigid frame resists vibration, torsional stress, and
misalignment during high-torque operation, ensuring long-term stability. Its
corrosion-resistant finish provides reliable protection against moisture, detergents, and
environmental exposure, making the gear box well-suited for use in pressure washers, industrial
cleaning equipment, and agricultural spray systems. The compact form factor allows easy
integration into space-constrained setups without sacrificing durability or performance.

Gear Train & 1:2 Ratio

Inside the AR1694, hardened and precision-ground steel gears deliver efficient torque transfer and
quiet operation. The 1:2 reduction ratio effectively converts engine or motor speed into the
optimal pump speed, balancing power output with mechanical efficiency. This controlled speed
reduction prevents over-speeding of the pump, enhancing its service life and maintaining
consistent pressure performance. The gears are machined for precise engagement, minimal backlash,
and low noise, resulting in smooth mechanical movement and reduced wear over extended operation.

Shafts & Alignment

The 3/4-inch input shaft provides a secure, direct connection to compatible engines or motors.
Its precision-machined keyway ensures tight, slip-free engagement and stable torque transmission
under load. The output shaft aligns perfectly with AR XT and XTA pump drive systems, maintaining
accurate concentric rotation to minimize vibration and ensure mechanical balance. This precise
alignment not only improves power transfer efficiency but also reduces wear on bearings, seals,
and couplers, contributing to the overall longevity of both the pump and gear box.

Sealed Oil Bath Lubrication

The AR1694 operates within a sealed oil bath lubrication system that provides constant lubrication
and cooling to all internal components. This design reduces friction, dissipates heat, and
protects against contamination from dust, water, or cleaning agents. The result is reliable,
maintenance-light performance even in harsh environments. The sealed oil chamber requires only
periodic inspection and occasional oil replacement, making the gear box ideal for operators
seeking long service intervals and low upkeep.

Installation & Fitment

Installation of the AR1694 is straightforward, thanks to its precision-machined flanges and bolt
pattern that align perfectly with AR XT and XTA pumps and standard engine mounts. The compact
dimensions make it especially suitable for mobile systems or confined equipment layouts. Once
mounted, the gear box maintains perfect alignment between the engine and pump, ensuring smooth
power delivery and vibration-free operation. No additional adjustments are required after
installation, providing a set-it-and-forget-it solution for professionals.

Performance & Efficiency

In operation, the AR1694 gear box delivers quiet, efficient, and stable performance. The optimized
1:2 reduction ratio ensures pumps run at the correct speed for steady pressure and consistent
water flow, improving overall cleaning performance and energy efficiency. The combination of
hardened steel gears and high-quality bearings allows for smooth rotation, reduced vibration, and
minimal mechanical noise, even under continuous-duty operation. By lowering mechanical stress on
both the engine and pump, the AR1694 helps extend the lifespan of connected components and
maintain peak system performance.

Quality Control & Maintenance

Every AR1694 gear box undergoes Annovi Reverberi’s stringent quality control and performance
testing before shipment. Each unit is inspected for torque handling, alignment accuracy,
vibration tolerance, and noise levels to ensure compliance with AR’s high manufacturing
standards. Maintenance is minimal: the sealed lubrication system eliminates frequent servicing,
and the corrosion-resistant housing provides additional protection against wear and environmental
exposure. Regular oil checks and routine inspection of mounting hardware are sufficient to ensure
years of uninterrupted operation.

AR1694 | Gear Box, 1:2 Ratio, 3/4 in Shaft, XT/XTA

The AR AR1694 gear box with a 1:2 ratio and 3/4-inch shaft for XT and XTA series pumps
exemplifies Annovi Reverberi’s commitment to engineering excellence and mechanical reliability.
Its combination of hardened gears, sealed lubrication, and corrosion-resistant construction
provides smooth torque conversion, quiet operation, and dependable long-term performance. Ideal
for compact professional cleaning systems, agricultural sprayers, and industrial wash equipment,
the AR1694 delivers precise power transmission, stable operation, and maintenance-free durability
— ensuring consistent results and extended service life across a wide range of demanding
applications.