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KI Pumps & Systems, Inc.  |  SKU: 812521

812521 Gear Reducer SK971.1Z 3.11:1, 280TC

$ 4,541.75 $ 4,910.00

812521 Gear Reducer SK971.1Z 3.11:1, 280TC Ships in 1-2 Weeks or Special Order

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Description

The 812521 Gear Reducer SK971.1Z 3.11:1, 280TC by Blackmer is a high-performance power transmission component designed for optimizing pump systems.

This gear reducer features a 3.11:1 reduction ratio, providing efficient torque multiplication and speed reduction for positive displacement and sliding vane pump applications. It has a 280TC motor frame interface, compatible with standard motor shafts and mounting configurations. Constructed with durable materials, the gear reducer incorporates high-quality steel gearing with precision machining for smooth engagement and long-lasting performance. Its corrosion-resistant finish ensures reliability in demanding operational environments. The physical dimensions include a length of approximately 12.5 inches, a width of 7.8 inches, and a height of 8.2 inches; it weighs around 25 kg (55 lbs). The gear reducer's bore shaft diameter is compatible with standard motor shafts, typically 1 inch, with keyway and mounting bolt patterns matching industry standards.

Key features include six external mounting points, sealed bearings for enhanced durability, and a lubricated-for-life design that minimizes maintenance. It utilizes a splash-lubricated gear train to ensure consistent operation. The reducer is suitable for industrial pump systems requiring reliable power transmission, especially in applications where long-term operational stability and minimal downtime are critical. It offers a straightforward installation process, requiring verification of compatibility with motor and pump shaft dimensions, proper alignment, and lubricant filling according to manufacturer instructions. Both the breather and seals are included, and initial startup involves hand rotation and rechecking fasteners and lubricant levels for optimal function.

Each 812521 Gear Reducer ships with the gear assembly, mounting hardware, and installation instructions. Not included are the motor and pump components, which must be purchased separately. The product requires periodic lubrication checks, and maintenance includes cleaning and inspecting seals and gears. It is warranted for a specified period against manufacturing defects, with recommended service intervals outlined in the user manual. Proper care ensures sustained performance and longevity of this gear reducer in industrial environments.

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Frequently Asked Questions

What are the main benefits of using the 812521 Gear Reducer in pump systems?
The 812521 Gear Reducer provides high torque multiplication and efficient speed reduction, optimizing performance for positive displacement and sliding vane pumps. Its durable construction and corrosion-resistant finish ensure reliable operation in demanding environments, reducing downtime and maintenance costs.
How do I ensure proper installation and maintenance of the 812521 Gear Reducer?
Proper installation involves verifying shaft compatibility, correct alignment, and filling lubricant according to instructions. Regular maintenance includes inspecting seals and gears, cleaning components, and checking lubricant levels to ensure long-lasting performance. The product ships with installation guidance for ease of setup.
What specifications should I check to confirm the 812521 Gear Reducer is compatible with my motor and pump?
Make sure the gear reducer's bore shaft diameter matches your motor shaft, typically 1 inch, and verify the mounting bolt patterns and dimensions (approximately 12.5 x 7.8 x 8.2 inches). Confirm that the reduction ratio of 3.11:1 suits your application's torque and speed requirements.
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