812735 Gear Reducer SK72-W 3.26:1 1750/537 RPM

The 812735 Gear Reducer SK72-W 3.26:1 1750/537 RPM by Blackmer is a precision component designed for pump applications requiring reliable speed reduction and torque conversion.

This gear reducer features a gear ratio of 3.26:1, effectively converting an input speed of 1750 RPM to an output speed of approximately 537 RPM, supporting smooth power transmission in positive displacement and sliding vane pumps. Constructed with high-strength materials such as alloy steel gears and a durable housing, it provides long-term operational stability and resistance to wear and corrosion. The gear reducer measures approximately 12 inches in length, 8 inches in width, and 10 inches in height, weighing roughly 25 kilograms, making it suitable for industrial settings with space constraints.

Key features include 6 external mounting holes for secure attachment, a standard shaft diameter compatible with common motor sizes (up to 1.5 inches), and sealed internals to prevent lubricant loss and contamination. It utilizes a closed-loop lubrication system with high-quality grease, supporting maintenance intervals of up to 2000 hours under normal operating conditions. The gear reducer supports continuous operation at input speeds of up to 1750 RPM and torque capacity of up to 200 Nm, ensuring efficient power transfer with minimal vibration and noise.

Ideal use cases for the 812735 Gear Reducer include industrial fluid transfer, pump stations, and machinery that operate at specified speed ratios. It is well-suited for contexts requiring stable performance, high durability, and precise speed control, especially for users prioritizing budget-friendly yet high-quality components. Manufacturers and engineers working on hydraulic systems, chemical processing, or wastewater treatment applications often select this gear reducer for its reliability and affordability, making it a cost-effective solution for maintaining system efficiency.

The package includes the gear reducer unit, mounting brackets, and grease filler plug. Not included are additional accessories such as motors, coupling adapters, or alignment tools, which need to be sourced separately.

Maintenance involves regular lubrication checks, with an oil change recommended every 2000 operating hours, and inspection of seals and mounting integrity. The gear reducer comes with a 2-year warranty covering manufacturing defects and functional failures, provided it is operated within specified parameters and maintained according to manufacturer instructions.