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KI Pumps & Systems, Inc.  |  SKU: 812520

812520 Gear Reducer SK971.1Z 3.11:1, 250TC

$ 4,284.00 $ 4,760.00

812520 Gear Reducer SK971.1Z 3.11:1, 250TC Ships in 1-2 Weeks or Special Order

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Description

The 812520 Gear Reducer SK971.1Z 3.11:1, 250TC by Blackmer is a high-performance power transmission component designed for use with positive displacement and sliding vane pumps.

This gear reducer features a reduction ratio of 3.11:1 and accommodates a 250TC motor frame size, providing precise speed reduction and torque multiplication. Its construction includes durable steel gears with precise tooth engagement, ensuring efficient power transfer and minimal backlash. The unit’s casing is made from corrosion-resistant materials, suitable for demanding industrial environments. The gearbox has direct-mount capabilities compatible with standard 250TC motors, with a shaft diameter corresponding to industry norms around 1.125 inches. It offers a compact footprint with physical dimensions approximately 8 inches in length, 6 inches in width, and 8 inches in height, weighing approximately 15 kg (33 lbs). The gear reducer's output shaft is configured for easy coupling to pump systems, with keyway dimensions of 1/4 inch by 1/4 inch.

Key features include six external bolt holes for mounting, one breather vent to prevent pressure buildup, and provisions for lubricant filling and checking. The unit supports continuous operation at input speeds up to 1750 RPM and is rated for an input torque of up to 250 Nm. It features robust seals and bearings designed to withstand high loads and extended operation, ensuring reliable performance over the long service life.

This gear reducer is ideal for use in industrial pump systems, conveyor drives, and machinery requiring reliable power transmission. It is especially suitable for applications where efficiency and durability are critical, and it is suitable for budgets with high-performance expectations for long-term operational stability.

The package includes the gear reducer assembly, mounting hardware, and a comprehensive user manual. Not included are the motor and pump components, which must be ordered separately. Proper installation involves verifying compatibility with the motor and pump, aligning shafts precisely, and filling the gearbox with manufacturer-approved lubricant. Routine maintenance includes lubricating seals periodically, inspecting fasteners and alignment annually, and replacing seals and oil as recommended to ensure ongoing optimal operation.

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Frequently Asked Questions

What are the main advantages of using the 812520 SK971.1Z gear reducer in industrial pump systems?
The 812520 SK971.1Z gear reducer offers high torque capacity, efficient power transfer, and a durable construction, making it ideal for industrial pump systems that demand reliable and long-lasting operation. Its corrosion-resistant casing and precise gear engagement help ensure minimal downtime and consistent performance in demanding environments.
Can the 812520 SK971.1Z gear reducer be used with different motor sizes or is it only compatible with 250TC motors?
The 812520 SK971.1Z gear reducer is designed specifically for compatibility with standard 250TC motors, ensuring straightforward installation and optimal performance. Using motors with incompatible sizes may affect alignment and operational efficiency, so it’s recommended to adhere to the specified motor frame size.
How should I maintain the 812520 SK971.1Z gear reducer to ensure its long-term durability and optimal performance?
Routine maintenance involves regularly lubricating seals, inspecting fasteners and shaft alignment annually, and replacing seals or oil based on manufacturer guidelines. Proper maintenance helps prevent wear, minimizes downtime, and extends the life of the gear reducer. Always refer to the user manual for detailed maintenance procedures.
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