HORSBURGH & SCOTT HELICAL GEAR REDUCER 2YY5 SIZE 140S SERIES T-159

HORSBURGH & SCOTT HELICAL GEAR REDUCER

2YY5

MODEL LS-2000 SER T-159

RATED AT 200 HP RATIO 7 TO 1

RPM IN 1150 RPM OUT 262 RPM

RPM IN 1600 RPM OUT 228 RPM

SERVICE FACTOR 2

The refurbished Horsburgh & Scott Helical Gear Reducer 2YY5, Model 140S Series T-159, is engineered for reliable performance. This model is rated at 200 HP with a gear ratio of 7 to 1. The reducer operates with an input speed of 1150/1600 RPM and delivers an output speed of approximately 261.9 RPM, ensuring efficient torque conversion for diverse industrial applications. Made in the USA, the gear reducer features a nominal ratio of 7 to 1 and is designed to handle demanding conditions with a service factor of 2, providing dependable operation. This model is ideal for environments requiring consistent torque transmission and speed reduction. The professionally refurbished condition ensures optimal functionality and extended service life, making it a solid choice for industrial setups.

This is a high-capacity industrial Horsburgh & Scott Helical Gear Reducer (Model 140-S) designed for heavy-duty speed reduction and torque multiplication.

Below are the operational specifications and calculations for this specific gearbox unit:

Operational Specifications

Manufacturer: Horsburgh & Scott

Model Number: 140-S

Serial Number: T-159

Gear Type: Parallel shaft helical gearing

Mechanical Power Rating: 200 HP at the specified input speed

Gear Ratio: 7:1 (nominal)

Input Speed Range: 1150 RPM to 1600 RPM

Service Factor (S.F.): 2.0 (indicates the unit is over-engineered to handle heavy shock loads, frequent starts, or continuous 24-hour service up to twice its mechanical standard rating

Operational Parameters

At Minimum Design Speed (1150 RPM) At Maximum Design Speed (1600 RPM) Input Speed1,150 RPM 1,600 RPM Output Speed (Input RPM ÷ 7)164.29 RPM 228.57 RPM Nominal Torque (HP × 63,025 ÷ Output RPM)~76,725 in-lbs~55,149 in-lbs

Maximum Torque Capacity (S.F. 2.0)~153,450 in-lbs~110,298 in-lbs

Common Industrial Applications With a high service factor of 2.0 and a low single-stage reduction ratio of 7:1, this specific gearbox configuration is typical for:

• Heavy-duty material handling conveyors subjected to non-uniform or surging loads.
• Primary drives in steel rolling mills, crushers, or mixers.
• High-vibration mining, pumping, or oil field operations.