Drive Unit (Motor & Gearbox)

Product Specifications

Technical details and manufacturing context for Drive Unit (Motor & Gearbox)

Definition

The Drive Unit (Motor & Gearbox) is a critical component of the Head Section, responsible for converting electrical energy into controlled mechanical motion. It typically consists of an electric motor that generates rotational force and a gearbox that modifies this force's speed and torque characteristics to meet the specific operational requirements of the attached machinery or tooling. This unit is designed for integration into industrial machinery where precise speed and torque control are essential. The motor, which may be AC, DC, or servo type, converts electrical energy into rotational kinetic energy. The gearbox then adjusts the speed and torque using gear systems such as spur, helical, or planetary gears, achieving the desired output profile. The unit's performance is defined by parameters such as rated power (0.75–7.5 kW), rated torque (50–500 N·m), output speed range (10–500 r/min), gear ratio (5–100), efficiency (92–97%), backlash (≤0.1°), noise level (≤70 dB(A)), operating temperature (-20–60 °C), protection class (IP54–IP65), supply voltage (380–480 V AC), weight (15–80 kg), and housing material (HT250). These values are reference ranges and must be verified for the specific model and application. The unit is constructed with materials including steel for gears and housing, copper for motor windings, aluminum alloy for lightweight housings, and industrial plastics for seals and bearings. It is intended for use in machinery and equipment manufacturing, and its selection should be based on the required torque, speed, and environmental conditions. Always confirm model-specific specifications and compliance with relevant standards with the legal manufacturer or supplier.

Working Principle

An electric motor (e.g., AC, DC, servo) converts electrical energy into rotational kinetic energy. This rotation is transmitted to a gearbox, which uses a system of gears (spur, helical, planetary, etc.) to reduce the input speed while proportionally increasing the output torque, or vice-versa, to achieve the desired speed-torque profile for the application. The gearbox's gear ratio determines the trade-off between speed and torque. The motor's speed is controlled by the electrical supply, and the gearbox modifies it to match the load requirements. The efficiency of the unit depends on gear design and lubrication. Backlash, the play between gears, is minimized for precise positioning. The unit operates within specified temperature and noise limits, and its protection class indicates its resistance to dust and water ingress.

Common Materials

Steel (for gears and housing), Copper (for motor windings), Aluminum Alloy (for lightweight housings), Industrial Plastics (for seals, bearings)

Technical Parameters

Parameter	Typical range	Notes & selection driver
Rated Power	0.75–7.5 kW	Select based on required torque and speed.IEC 60034-1
Rated Torque	50–500 N·m	Determines gearbox size and strength.ISO 6336
Output Speed Range	10–500 r/min	Match to application speed requirements.
Gear Ratio	5–100	Higher ratio increases torque but reduces speed.ISO 6336
Efficiency	92–97 %	Higher efficiency reduces energy loss.ISO 1328-1
Backlash	≤0.1 °	Low backlash for precise positioning.ISO 1328-1
Noise Level	≤70 dB(A)	Lower noise for operator comfort.ISO 3744
Operating Temperature	-20–60 °C	Outside range may require special lubricants.IEC 60034-1
Protection Class	IP54–IP65	IP65 for dusty or wet environments.IEC 60529
Supply Voltage	380–480 V AC	Three-phase, 50/60 Hz.IEC 60038
Weight	15–80 kg	Affects installation and structural support.
Housing Material	HT250	Cast iron for strength and damping.GB/T 9439

Ranges are indicative industry figures for RFQ preparation, not a supplier commitment. Confirm every value and standard with the legal manufacturer before ordering.

Components / BOM

Electric Motor
Converts electrical energy into rotational mechanical energy.

Material: Steel, Copper, Aluminum, Magnets
Gearbox Housing
Encloses and supports the gear train, contains lubricant, and provides mounting points.

Material: Cast Iron, Aluminum Alloy, Steel
Gear Train (Spur/Helical/Planetary)
Transmits and modifies the motor's speed and torque through meshing gears.

Material: Case-Hardened Steel, Carburized Steel
Output Shaft Part
Delivers the modified torque and rotation to the driven component.

Material: Alloy Steel
Bearings
Support rotating shafts and reduce friction.

Material: Bearing Steel (e.g., Chrome Steel)
Shaft Seals Part
Prevent lubricant leakage and contaminant ingress.

Material: Nitrile Rubber, Fluorocarbon Rubber

Applied To / Applications

This component is essential for the following industrial systems and equipment:

Head Section

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Frequently Asked Questions

What is the typical rated power range for this drive unit?

The rated power range is 0.75–7.5 kW, but this is a reference range. The actual value depends on the specific model and application. Always check the nameplate or technical documentation from the manufacturer.

How does the gear ratio affect performance?

A higher gear ratio increases output torque but reduces output speed. The gear ratio range is 5–100. Select the ratio based on the required speed and torque for your application.

What is the significance of the protection class?

The protection class (IP54–IP65) indicates the degree of protection against dust and water. IP65 is suitable for dusty or wet environments. Choose the appropriate class based on your operating conditions.

What standards are relevant for this product?

Relevant standards include IEC 60034-1 for motors, ISO 6336 for gear strength, ISO 1328-1 for gear accuracy, ISO 3744 for noise, IEC 60529 for protection, and IEC 60038 for voltage. These are references for verification; compliance must be confirmed with the manufacturer.

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pressure:	Ambient to 2 bar
other spec:	Max torque: 500 Nm, Speed range: 10-3000 RPM, IP rating: IP65
temperature:	-20°C to +80°C

Product Specifications

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Industrial Ecosystem & Supply Chain Structure

Application Fit & Sizing Matrix

Reliability & Engineering Risk Analysis

Compliance & Manufacturing Standards