Flange Mounted Parallel Shaft Geared Motor
The G Series flange-mounted parallel shaft geared motor integrates a high-efficiency three-phase electric motor with a compact parallel-shaft helical gearbox. Engineered for heavy-duty industrial machinery, this series features B5/B14 flange mounting with solid or hollow output shafts, delivering continuous power transmission, high load capacity, and seamless dimensional interchangeability for global OEM and MRO replacement applications.
Product Overview
The G Series flange-mounted parallel shaft geared motor integrates a high-efficiency three-phase electric motor with a compact parallel-shaft helical gearbox. Engineered for heavy-duty industrial machinery, this series features B5/B14 flange mounting with solid or hollow output shafts, delivering continuous power transmission, high load capacity, and seamless dimensional interchangeability for global OEM and MRO replacement applications.
Key Specifications
|
Parameter |
Specification Details |
|
Product Type |
Flange Mounted Parallel Shaft Geared Motor |
|
Motor Power |
0.12–200 kW |
|
Transmission Ratio |
1.26–33,000 |
|
Maximum Output Torque |
Up to 50 kN·m |
|
Gear Stages |
2-stage / 3-stage |
|
Gear Type & Material |
Helical gearing; 20CrMnTi alloy steel |
|
Shaft Arrangement |
Parallel input and output shafts |
|
Mounting Options |
B5 / B14 Flange-mounted |
|
Output Shaft |
Solid / Hollow (Keyed, Shrink Disc, or Splined options) |
|
Housing |
High-strength HT250 cast iron |
|
Frequency & Voltage |
50 Hz / 60 Hz; Custom dual-voltage options |
Mechanical Performance
Broad Ratio Range (1.26 to 33,000): Multi-stage options allow precise speed output matching without sacrificing transmission efficiency (up to 96% per stage).
High Torque Density (Up to 50 kN·m): Optimized gear geometry and high-strength cast housing absorb extreme torsional stress and continuous load spikes.
Compact Parallel-Shaft Layout: Provides space-saving drive alignment parallel to the driven equipment shaft.
Precision Helical Gearing: Continuous multi-tooth engagement reduces operational noise (< 68 dB), lowers vibration, and extends fatigue life under severe duty cycles.
Industrial Applications
Conveyor Systems (Belt, Chain, Roller): High radial load capacity and smooth startup torque control for continuous bulk material handling.
Screw Conveyors & Agitators: Parallel-shaft output accommodates tight space configurations along drive troughs.
Bucket Elevators & Hoists: High-ratio multi-stage gear combinations handle high static holding torque and vertical lift requirements.
Winches & Crane Drives: Low output speeds combined with optional safety brakes for controlled position holding.
Dryers & Processing Drums: Continuous low-speed, high-torque transmission under thermal operational conditions.
Paper, Packaging & Material Processing Machinery: Rigid flange-mounting ensures precise alignment with machine frames.
Product Configuration
|
Transmission Stages |
2-stage or 3-stage reduction based on speed requirements. |
|
Flange Interfaces |
B5 (large flange) or B14 (face flange) direct mounting. |
|
Shaft Output |
Solid shaft or hollow shaft with specified bore diameters and keyways. |
|
Electrical Integration |
Standard three-phase, inverter-duty, or brake motor configurations. |
|
Mounting Positions |
M1 through M6 spatial orientations. |
Gearbox Selection Guide
Determine Output Speed
Calculate the required ratio (i) based on motor synchronous speed (n1) and target machine speed (n2):
- Transmission Ratio (i) = n1 / n2
Calculate Required Torque
Determine the operational output torque (T2) using input power (P, kW) and output speed (n2, rpm):
- T2 = 9550 * P / n2
- Ensure the gearbox rated torque (T2N) satisfies: T2N >= T2 * fs.
Determine Service Factor (fs)
Select the appropriate service factor based on:
- Daily operating hours (< 8 h, 8–16 h, or 24 h continuous)
- Shock loads (uniform, moderate, or heavy shock)
- Hourly start/stop frequency
Verify Radial and Axial Shaft Loads
When output power is transferred via sprockets, pulleys, or pinions, evaluate total radial force (FR) against the allowable overhung load rating (FRa) based on load distance from the shaft shoulder.
Confirm Mounting & Dimensions
Finalize B5 or B14 flange dimensions, pilot tolerances, bolt circle, shaft/bore diameters, keyway sizes, and spatial mounting orientation (M1–M6).
Motor Options
Energy Efficiency: Standard three-phase motors available in IE2, IE3, or IE4 premium efficiency classes.
Variable Frequency Drive (VFD) Duty: Inverter-duty insulation and forced cooling fans (forced ventilation) for low-speed continuous operation.
Electromagnetic Brake Motors: Integrated DC spring-applied brakes for dynamic stopping or static safety holding.
Enclosure & Protection: IP55 standard, IP65/IP66 optional; Class F/H insulation; tropicalized winding treatment upon request.
Customization Support
Custom mechanical and electrical modifications are engineered upon request:
- Custom flange dimensions, pilot diameters, and special bolt-hole patterns
- Non-standard output shaft diameters, shaft lengths, step shafts, or special keyways
- Stainless steel output shafts or specialized corrosion-resistant surface coatings
- Special voltages, frequencies, tropical insulation, or explosion-proof ratings (ATEX)
- Custom terminal box positions and cable entry directions
Packaging and Export Logistics
Protective Preparation: Machined flange faces and output shafts receive anti-rust oil treatment and protective shaft caps.
Packaging: Heavy-duty, ISPM-15 compliant fumigation-free wooden cases suitable for ocean freight, air transport, and multi-modal inland trucking.
Identification: Clear packing lists, model identifiers, and custom shipping marks applied per buyer instructions for quick warehouse handling.
Frequently Asked Questions
Q: Are your parallel shaft geared motors directly interchangeable with SEW or Nord units?
A: Yes. Mounting dimensions, shaft diameters, center distances, and ratios are designed to match standard global series, allowing direct drop-in replacement without modifying your machine structure.
Q: Can you supply 2D/3D CAD models before ordering?
A: Yes. We supply complimentary 2D dimensional drawings and 3D CAD models (STEP/IGES) within 12–24 hours for engineering design verification.
Q: What is the standard warranty and lead time?
A: We provide a standard 12 to 18-month warranty from the date of dispatch. Standard configurations ship within 7–15 days; custom OEM orders take 20–30 days.
Q: What gear precision and materials are used?
A: Gears are manufactured from 20CrMnTi alloy steel, carburized and quenched to HRC 58–62, and precision ground to ISO 1328-1 Class 6 accuracy for low operational noise (< 68 dB).
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