Hollow Shaft Helical Geared Motor
The G Series Hollow Shaft Helical Geared Motor integrates a high-efficiency three-phase AC motor, a precision helical gearbox, and a hollow output shaft into a single drive unit. By mounting directly onto the driven machine shaft, it eliminates extra couplings and external transmission components—saving installation space, reducing alignment labor, and streamlining machine design.
Product Overview
The G Series Hollow Shaft Helical Geared Motor integrates a high-efficiency three-phase AC motor, a precision helical gearbox, and a hollow output shaft into a single drive unit. By mounting directly onto the driven machine shaft, it eliminates extra couplings and external transmission components-saving installation space, reducing alignment labor, and streamlining machine design.
Technical Specifications
|
Parameter |
Specification |
|
Product / Series |
G Series Hollow Shaft Helical Geared Motor |
|
Drive Configuration |
Integrated motor-gearbox unit with hollow output shaft |
|
Motor Type |
3-Phase AC Induction Motor |
|
Power & Torque Range |
Selected per output speed, load requirements, and duty cycle |
|
Gear Ratio & Output Speed |
Wide range of reduction ratios available; matched to required RPM |
|
Hollow Shaft Bore |
Custom bore sizes and keyway specs available |
|
Mounting Position |
Shaft-mounted (Universal mounting orientations) |
|
Electrical Supply |
220V / 380V / 400V / 415V / 460V; 50 Hz / 60 Hz |
Key Product Advantages
Direct Shaft Mounting: Eliminates flexible couplings, adapter flanges, and drive chains, significantly reducing total system footprint.
High Efficiency & Low Noise: Precision helical gearing provides high mesh efficiency and continuous power transfer with ultra-low noise output.
Flexible Electrical & Mechanical Configurations: Customizable voltages, frequencies, shaft sizes, IP protection classes, and brake additions for global compatibility.
Simplified OEM Integration: Standardized mounting interfaces and shaft tolerances allow seamless drop-in integration into OEM machine layouts.
Application Areas
Conveyor Systems
Direct drive for belt, roller, and chain conveyors in logistics and warehousing.
Packaging Machinery
Controlled speed reduction for continuous rotary feeding, sealing, and wrapping stations.
Material Handling & Processing
Agitators, mixers, sorting machines, and automated production lines requiring reliable torque delivery in confined spaces.
Precision Helical Gear Transmission
The G Series utilizes advanced gear manufacturing technologies to deliver smooth power delivery, minimal backlash, and extended service life:
Material & Heat Treatment: High-grade 20CrMnTi alloy steel, carburized and quenched to a surface hardness of 58–62 HRC for exceptional wear resistance.
Tooth Finishing: High-precision CNC gear grinding ensures quiet operation, low vibration, and optimized contact patterns under heavy loading.
Housing Rigidity: Cast iron/aluminum alloy housings designed to absorb internal vibrations and maintain accurate shaft alignment.
Motor & Electrical Options
Global Voltage Capability
Windings configured for dual-voltage and dual-frequency operation across regional electrical grids.
Thermal Protection
Integrated PTC thermistors or bimetallic switches safeguard against overload conditions.
Holding Brake
Optional spring-applied electromagnetic brakes for fast, secure holding in incline conveying and vertical lifting applications.
Step-by-Step Model Selection Process
Determine Output Speed: Define the required output RPM at the driven machine shaft.
Calculate Operating Torque: Calculate required continuous output torque (Nm) and apply a service factor (fs >= 1.2-1.5 for heavy duty / impact loads).
Select Gear Ratio & Gearbox Size: Match required torque and speed against standard ratio tables and housing sizes.
Confirm Hollow Shaft Fit: Match machine shaft diameter, keyway dimensions, tolerance, and insertion depth.
Check External Shaft Loads: Verify combined radial and axial force limits on gearbox output bearings.
Confirm Mounting Position: Specify orientation ( horizontal, vertical motor flange up/down) to ensure correct factory lubrication levels.
Specify Motor & Options: Select motor power, input voltage, frequency, enclosure rating (IP55/IP65), brake option, and terminal box position.
Export Packaging & Logistics Control
Protective Packaging: Anti-rust coating applied to all machined surfaces and hollow shaft bores, wrapped in vapor-corrosion inhibitor film.
Transit Security: Reinforced, IPPC-compliant wooden crates designed for ocean and air freight shipment.
Documentation: Complete with CE certification, inspection report, lubrication guide, and custom shipping marks per buyer specifications.
Frequently Asked Questions
Q: Can the hollow shaft match my existing machine shaft?
A: Yes. Hollow shafts are produced to standard ISO tolerances (H7/h6). Custom shaft bore dimensions, keyways, or spline profiles are available for OEM orders.
Q: Can motor voltage and frequency be customized for overseas markets?
A: Yes. We supply motors for global power grids, including 220V/380V, 230V/400V, 460V, and 575V at 50 Hz or 60 Hz.
Q: Is 3D CAD modeling support available during design selection?
A: Yes. Free 2D drawings and 3D CAD files (STEP, IGES) are provided to assist design engineers with spatial integration before ordering.
Q: What is the standard manufacturing lead time?
A: Standard models are produced in 7-10 days; customized OEM batch orders are typically fulfilled in 20-25 days.
Q: How do I request a drop-in replacement for a worn-out unit?
A: Send a photo of the existing gearbox nameplate, shaft dimensions, and mounting arrangement. Our engineering team will verify cross-compatibility.
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