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Parallel Shaft Geared Motor

GF Series Parallel Shaft Geared Motor Manufacturer

Guomao Guotai manufactures GF Series parallel shaft helical geared motors for heavy-duty industrial power transmission and machinery applications.

Designed with a parallel-shaft helical gear arrangement, the GF Series provides controlled output speed, high torque density, and a compact drive footprint.

With 33+ years of gearbox manufacturing experience and a 30-person technical support team, our integrated production system supports standard units, repeat orders, custom OEM builds, and direct drop-in replacement projects.

Why Choose Guomao Guotai for Your Drive Solutions

Integrated Precision Manufacturing

From raw material selection and gear hobbing to precision CNC tooth grinding and heat treatment, every stage of production is controlled in-house. Our temperature-controlled workshop eliminates thermal distortion, guaranteeing high dimensional accuracy, reduced backlash, and quiet gear operation.

Global OEM & Customization Engineering

We support non-standard mechanical and electrical modifications. Our engineering team designs custom shaft diameters, special flanges, custom reduction ratios, and explosion-proof motor configurations tailored to your equipment drawings.

Fast-Response Replacement Capabilities

Our comprehensive model database allows us to assist engineering teams with drop-in replacements for existing legacy gearboxes. By analyzing photos, nameplate data, or shaft measurements, we help minimize machinery downtime for end-users and maintenance teams.

Technical Specifications

Parameter	Specification Details
Product Type	Parallel Shaft Helical Geared Motor
Gearing Type	Helical Gears (Case-hardened HRC 58–62)
Gear Precision	DIN Class 5–6 / ISO 1328 Class 5–6
Housing Material	High-strength HT250 Cast Iron (Ductile Iron optional)
Gear Stages	2-Stage / 3-Stage
Motor Power	0.12 kW – 200 kW
Transmission Ratio	1.26 – 33,000
Max Output Torque	Up to 50 kN·m
Output Shaft Type	Solid / Hollow / Hollow Shaft with Shrink Disc or Keyway Locking
Mounting Options	Foot-mounted / Flange-mounted / Shaft-mounted
Noise Level	< 75 dB(A)
Efficiency Rating	94% – 96%

Key Features

High Efficiency Transmission: Multi-stage helical gearing delivers up to 94–96% efficiency per stage, minimizing power loss and thermal strain.

Low Noise & Smooth Operation: CNC gear profile modification and precision tooth finishing reduce operational noise (under 75 dB) while boosting shock-load capacity.

Leak-Proof Architecture: Premium double-lip oil seals and optimized internal oil channels eliminate fluid leaks during continuous 24/7 duty.

Modular Interchangeability: Standardized dimensioning enables quick motor replacement or ratio adjustments, drastically reducing maintenance downtime.

Industrial Applications

Conveying Systems: Belt, bucket, screw, chain, and roller conveyors requiring heavy starting torque and continuous 24/7 reliability.

Material Handling Equipment: Hoists, winches, overhead transfer cars, and automated storage and retrieval systems.

Process Machinery: Industrial mixers, agitators, processing feeders, packaging lines, and bulk handling systems.

Output Shaft Configurations

Solid Output Shaft: Designed for external transmission drives connected via couplings, sprockets, pulleys, or spur gears. Specify shaft extension length, diameter, keyway dimensions, and radial/axial load requirements.

Hollow Output Shaft: Slides directly onto the driven machine shaft, simplifying alignment and eliminating external drive components. Confirm machine shaft tolerances, keyway specs, and usable length.

Hollow Shaft with Locking Element (Shrink Disc): Delivers a backlash-free friction connection for reversing duties, high dynamic loads, or easy shaft removal without keyway wear.

Mounting Configurations

Foot-Mounted

Rigid base installation for stationary machinery frames. Designed to handle full operating torque and external overhung loads.

Flange-Mounted

Direct bolted attachment to machine walls or gear housings. Ensures precise concentricity and compact machine integration.

Shaft-Mounted with Torque Arm

Installed directly onto the driven shaft with a torque arm reaction support. Ideal for space-constrained conveyors and material handling equipment.

Step-by-Step Selection Guide

Define Driven Machine Duty: Identify application type, operating profile, and daily running hours.

Calculate Target Speed & Ratio: Determine required shaft output speed relative to motor input speed.

Determine Output Torque: Calculate nominal running torque and maximum peak starting torque.

Determine Required Motor Power: Match torque and speed requirements against standardized motor ratings.

Calculate Service Factor

Adjust for ambient temperature, shock load severity, and start-stop cycles per hour.

Verify Overhung Loads

Ensure allowable radial and axial forces cover external sprocket or pulley forces.

Select Shaft & Mounting Type

Pick solid, hollow, or shrink-disc shaft with foot, flange, or shaft-mounting options.

Finalize Electrical Specs

Specify target voltage, frequency, enclosure rating (IP55/IP65), and terminal box position.

Custom Engineering

For machinery manufacturers requiring non-standard drive integration, we offer tailored mechanical and electrical modifications based on CAD/BIM drawings:

Custom Shafts & Mounts

Non-standard shaft extensions, custom flange bolt circles, and special keyway geometries.

Specialized Motors

Explosion-proof (ATEX), brake motors, variable frequency (VFD) duty, inverter-duty insulation, and custom voltages/frequencies.

Environmental Protection

Special epoxy paint coatings, high-temperature seals, IP66/IP67 ingress protection, and stainless steel hardware for corrosive environments.

Quality Inspection Workflow

Raw Material Audit

Ultrasonic flaw detection on incoming forged steel blanks.

Precision Machining

Gear profile grinding inside climate-controlled workshops to prevent thermal deviation.

Tooth Geometry Inspection

Automated gear inspection centers verify pitch, profile, and lead tolerances.

Final Assembly Testing

100% factory inspection covering no-load/full-load running, noise levels, vibration, and oil-tight sealing.

Export Packaging, Logistics & Warranty

Export-Grade Packaging

Heavy-duty geared motors are treated with anti-rust coating, wrapped in moisture-proof film, and secured inside ocean-worthy, fumigated wooden cases with internal structural block supports and designated lifting points.

International Logistics

Fully supported for FOB, CIF, CFR, and DDP shipments via ocean freight, air cargo, or multimodal transit with standard shipping marks and detailed packing lists.

Warranty & Lead Times

Standard manufacturing lead time is 15–25 business days depending on configuration. Products are backed by a standard 12-to-18-month warranty against manufacturing defects.

Our Certificate

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Frequently Asked Questions

Q: Is the GF Series a direct replacement for standard European parallel shaft gearboxes?

A: Yes, key mounting centerlines, shaft dimensions, and flange dimensions align with standard international drive footprints, enabling direct drop-in replacement.

Q: What gear accuracy and noise standards do you maintain?

A: All gears are CNC precision ground to DIN Class 5–6 accuracy, maintaining operational noise levels under 75 dB(A).

Q: What is your standard production lead time?

A: Standard units are typically dispatched in 12–15 days. Customized OEM configurations or large batch orders are scheduled based on drawing sign-off.

Q: How do you prevent oil leakage during long-distance sea transport and operation?

A: We utilize double-lip synthetic rubber oil seals, pre-shipment leak pressure testing, and protective VCI anti-rust ocean packaging.

Q: Can you build custom gearboxes according to machine drawings?

A: Yes, our engineering team can review step files or dimensional drawings to manufacture matching shaft, housing, and mounting configurations.

Request a Fast Engineering Quote

Send us your application parameters to receive 2D/3D drawings, selection verification, and competitive pricing within 24 hours.
For New Equipment Projects: Submit motor power (kW), output speed (rpm), required torque, mounting style, voltage/frequency, and order quantity.
For Retrofit & Replacement: Submit photos of the existing gearbox nameplate, shaft measurements, flange dimensions, and operating conditions.
No Technical Data Available? Send pictures or equipment drawings of your machine—our technical team will complete the selection calculation for you.

We are one of the most professional parallel shaft geared motor manufacturers and suppliers in China, specialized in providing high quality products and efficient solutions to global clients. Welcome to buy durable parallel shaft geared motor for sale here from our factory. For price consultation, contact us.

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