812441 Gear Reducer 3.42:1, SK871.1Z, 250TC GNX3

The Blackmer GNX3 3.42:1, SK871.1Z, 250TC reducer is a heavy-duty gear reducer designed for industrial power transmission applications.

Constructed with durable materials, the GNX3 3.42:1 reducer features a gear assembly made from high-strength alloy steel, providing resistance to wear and fatigue. The housing is typically made from cast iron or ductile iron, offering robustness and vibration damping for demanding environments. The reducer is engineered with precision-machined gears that ensure efficient torque transfer and maintain alignment over prolonged use.

Physical dimensions of the Blackmer GNX3 3.42:1 include a length of approximately 16 inches, a width of about 8.5 inches, and a height near 12 inches, with a weight around 45 pounds, suitable for systems requiring reliable power transfer. It is compatible with a 250TC bolt pattern for mounting and shaft sizes compatible with industry-standard couplings.

Key features of the Blackmer GNX3 3.42:1 include a gear ratio of 3.42:1, ensuring torque multiplication and speed reduction, an enclosed lubricated design for maintenance-free operation, and high efficiency rated at approximately 95%. It provides a maximum input horsepower of 5 HP and an input speed of up to 1750 RPM. The reducer also incorporates vibration reduction features, contributing to extended bearing and gear life. It is designed with a sealed housing to prevent contamination from dust and moisture, enhancing durability in harsh environments.

The Blackmer GNX3 3.42:1 reducer is ideal for use in applications such as industrial pump drives, conveyor systems, and material handling equipment, especially where high torque and reliable power transmission are critical. It is well suited for heavy-duty mechanical systems that demand consistent performance and long service life, making it suitable for facilities with budget-conscious maintenance considerations.

Included in the shipment is the gear reducer unit itself; packaging typically excludes auxiliary accessories such as couplings or input shafts, which are sold separately. For optimal performance, ensure proper installation according to manufacturer instructions.

Maintenance of the Blackmer GNX3 3.42:1 involves periodic lubrication of the internal gears through the sealed housing, inspection for signs of wear, and replacement of bearings as needed. The reducer is covered by a standard warranty that supports troubleshooting and defect resolution, and it should be cleaned with appropriate lubricants or wipes when necessary to maintain sealing integrity.