High-Efficiency F Series Parallel Shaft Helical Gear Motor for Industrial Applications

◆F Series parallel-shaft helical geared motors deliver efficiency exceeding 95 percent across two and three stage configurations. Ratios cover from 3.0 to over 270 with motor powers spanning 0.18 to 200 kilowatts. How it works: input rotation transfers through precision ground helical gears arranged on parallel shafts. This layout increases radial load capacity through distributes forces across multiple gear stages supporting both ends of each shaft. The gear geometry transmits torque smoothly while minimizing axial thrust, extending service life under continuous operation. Foot, flange, shaft, and shrink disc hollow shaft mounting variants accept standard IEC motors directly. Solid shaft and hollow shaft output options suit diverse driven equipment interfaces. F Series units drive belt conveyors, bucket elevators, screw feeders, mixers, crushers, extruders, and material handling systems.

F Series Parallel Shaft Helical Gear Motor – Application-Based Selection Guide

◆When selecting a parallel shaft helical gear motor for industrial applications, it is essential to consider not only power and speed but also the unique demands of each sector—continuous operation, high radial loads, compact installation, and reliable performance in demanding environments. Below is a practical selection guide based on real-world applications of the HelmeDrive F Series Parallel Shaft Helical Gear Motor—built on real-world data, so you can choose with confidence.

◆The F Series is a parallel shaft helical gear motor designed for applications where input and output shafts are parallel. It features a modular design with two or three helical gear stages, providing high efficiency, smooth operation, and high torque density in a compact footprint. The series features high-strength cast iron housing, case-hardened and precision-ground gears, and multiple mounting options. Key features include parallel shaft configuration, high efficiency, smooth and quiet operation, and versatile mounting configurations.

▼Product Overview

Note: For detailed power, torque, and ratio tables—including values for specific sizes and operating conditions—please consult HelmeDrive engineering.

▼Understanding HelmeDrive F Series Model Designation

Example: F79-15.93-M1

▼Application Areas

Based on industry-standard load classifications, the F Series is suitable for a wide range of industrial applications where parallel shaft drives are required:

1. Conveying Systems Applications

Common Pain Points:

n High radial loads from pulleys and sprockets

n Continuous 24/7 operation in dusty environments

n Need for reliable sealing against material spillage

n Space constraints requiring compact parallel shaft drives

Selection Recommendations:

2. Material Handling & Hoisting Applications

Common Pain Points:

n High starting torque under load

n Safety requirements for load holding

n Shock loads during acceleration/braking

n Space constraints in machinery houses

Selection Recommendations:

3. Mixing & Agitation Applications

Common Pain Points:

n Variable torque due to viscosity changes

n Smooth, vibration-free operation required

n Quiet operation for indoor environments

n Continuous duty with high reliability

Selection Recommendations:

4. Packaging & Automation Applications

Common Pain Points:

n Frequent start-stop cycles in automated lines

n Need for smooth, accurate positioning

n Compact installation in crowded production lines

n Precise indexing and positioning requirements

Selection Recommendations:

★Technical Specifications Reference

For complete power, torque, and ratio tables—including values for specific sizes and operating conditions—please consult HelmeDrive engineering.

1. Frame Sizes and Corresponding Motor Power Ranges (Typical)

Note: Power ranges are indicative; specific values depend on ratio and operating conditions. Consult selection tables for exact ratings.

2. Reduction Ratios (Typical)

The F Series offers a wide selection of reduction ratios across all frame sizes, typically ranging from 5:1 to 200:1. Actual ratios vary by motor power and operating conditions; consult selection tables for precise values.

3. Efficiency

4. Service Factor Selection

Total service factorfA = fAh × fAc × fAt × fAn

Note: For detailed load classification values, consult HelmeDrive.

5. Gear Unit Constants for Radial Load Conversion

Note: For radial load calculation, use FxL = FRa × a / (b + X) for bearing life, and FxW = c / (f + X) for shaft strength. FRa is the permissible radial load at the shaft midpoint from selection tables.

6. Permissible Radial Load (FRa) at Shaft Midpoint (Typical)

Note: Values are typical; refer to selection tables for exact FRa at specific ratios and motor powers.

★What to Know Before You Buy

▸Select the correct mounting position– The F Series supports multiple mounting positions (M1–M6). The default is M1 (foot-mounted, motor horizontal). For other orientations, ensure proper lubrication as oil levels may need adjustment. Vertical mounting (M2, M4) requires special attention to ensure upper bearings are lubricated.

▸Account for service factors– Calculate fA = fAh × fAc × fAt × fAn based on your application’s load type, daily operating hours, start/stop frequency, ambient temperature, and output speed. Ensure the selected gearbox has fB ≥ fA.

▸Calculate radial loads accurately– For overhung loads (sprockets, pulleys, gears), calculate the radial load using Fr = 2 × Mr × fr / d. If the load is not applied at the shaft midpoint, use the conversion formulas with gear unit constants to determine the permissible load at the actual load point.

▸Check axial load capacity– Axial loads up to 5% of the permissible radial load are allowed when no radial load is present. For combined radial and axial loads, or for significant axial loads, consult HelmeDrive.

▸Consider the operating environment– For dusty environments, request enhanced sealing. For outdoor installations, ensure proper protection against moisture. For high ambient temperatures, apply the temperature factor fAt and consider forced lubrication if thermal capacity is a concern.

▸Lubrication is factory-filled– F Series gear units are delivered with oil. The exact oil quantity depends on the mounting position; refer to the oil level mark for proper filling. For vertical mounting, consult HelmeDrive to ensure correct lubrication.

▸Parallel shaft design is the key feature– The F Series features parallel input and output shafts, making it ideal for applications where the motor can be mounted in line with the driven equipment. This configuration provides high efficiency and compact axial length.

▸Let HelmeDrive help with selection– With multiple frame sizes, ratios, and mounting options, proper sizing requires accurate load data. Send your application parameters—load characteristics, required power/speed, duty cycle, mounting position, and environmental conditions—to HelmeDrive for precise gearbox sizing.

By matching your selection to your actual working conditions and operational challenges, you ensure longer equipment life, lower maintenance costs, and higher system reliability.HelmeDrive is committed to providing robust, efficient solutions tailored to your industrial needs.

📬shawn.zhu@helmedrive.com