Orange Planetary Gear DC Motor 12V 185RPM 72.5 N-cm PG36M555-26.9K

The Orange Planetary Gear DC Motor PG36M555-26.9K is a precision 12V brushed DC motor featuring a compact planetary gearbox that delivers 72.5 Newton-centimeters of torque at 185 RPM, making it ideal for applications requiring high torque output in a small footprint. Robotics engineers, automation technicians, and industrial equipment manufacturers rely on this motor for projects demanding reliable torque transmission with minimal backlash and smooth operation. This product solves the critical challenge of achieving high mechanical advantage without increasing motor size, enabling designers to create compact yet powerful mechanical systems for conveyor drives, robotic arms, automated gates, and precision positioning equipment.

Product Overview

The PG36M555-26.9K operates on the principle of planetary gear reduction, where multiple planet gears orbit around a central sun gear within a ring gear housing. This configuration distributes load evenly across multiple gear teeth simultaneously, resulting in exceptional torque density and minimal vibration compared to traditional spur gear designs. The 12V DC motor core provides consistent power delivery with the planetary gearbox achieving a 26.9:1 reduction ratio, converting the motor's higher RPM output into the specified 185 RPM with proportionally increased torque. The compact orange-colored aluminum housing dissipates heat effectively while protecting internal components from dust and environmental contaminants, making it suitable for both indoor and outdoor applications.

What distinguishes this model is its engineering-grade construction with precision-machined gears manufactured to tight tolerances, ensuring backlash remains below 5 degrees for applications requiring accurate positioning. The sealed bearing design minimizes friction losses while extending service life beyond 5000 operating hours under normal conditions. The motor features standard shaft coupling compatibility, allowing seamless integration with driven loads through flexible couplings or direct mechanical linkages. Its compact 36mm form factor makes it the preferred choice for space-constrained applications where traditional larger motors would be impractical, yet it delivers industrial-grade performance without compromise.

Key Specifications

Specification	Details
Product Type	Planetary Gear DC Motor with Brushed Motor Core
Brand	Orange (OEM Quality)
Origin	Original/Authentic
Warranty	7 days on manufacturing defects
Shipping	1-5 days from Bengaluru
Delivery	7-8 days across India
Support	24/7 via Email and WhatsApp
Input Voltage	12 Volts DC
Output Speed	185 RPM at rated load
Output Torque	72.5 Newton-centimeters (7.25 kilogram-force centimeters)
Gear Reduction Ratio	26.9:1
Motor Frame Size	36 millimeters diameter
Backlash	Less than 5 degrees
Rated Power	Approximately 3.5 Watts continuous
Operating Temperature Range	-10 degrees Celsius to 60 degrees Celsius
Housing Material	Aluminum alloy with protective coating
Shaft Type	Standard D-shaft with keyway
Bearing Type	Sealed ball bearings
Expected Service Life	5000+ operating hours

Key Features

• High Torque Density: Delivers 72.5 N-cm of torque in a compact 36mm form factor, enabling powerful motion control in space-constrained applications such as robotic grippers and automated positioning systems.
• Precision Planetary Gearbox: Features less than 5 degrees of backlash with evenly distributed load across multiple gear teeth, ensuring smooth operation and accurate positioning for applications requiring repeatable mechanical accuracy.
• Sealed Bearing Design: Dual sealed ball bearings minimize friction losses while protecting against dust and moisture ingress, extending operational life to 5000+ hours and reducing maintenance requirements in industrial environments.
• Stable Speed Control: Maintains consistent 185 RPM output across varying load conditions, making it ideal for applications requiring predictable motion such as conveyor belt drives and automated machinery.
• Efficient Power Conversion: Achieves 80+ percent mechanical efficiency through precision-engineered planetary gearbox design, minimizing heat generation and power loss compared to spur gear alternatives.
• Versatile Mounting: Standard shaft with keyway and D-profile enables flexible integration with couplings, pulleys, and driven loads without requiring custom adapters.

Applications and Use Cases

• Robotic Arm Actuators: Powers precise joint movements in collaborative robots and industrial robotic arms where controlled torque output and compact size are essential for multi-axis motion systems.
• Automated Gate and Door Systems: Drives sliding gates, rolling shutters, and automated doors in commercial facilities where reliable torque at moderate speed ensures smooth operation and safety compliance.
• Conveyor Belt Drives: Provides consistent torque for small to medium conveyor systems in warehousing, packaging, and material handling applications requiring predictable speed control.
• Precision Positioning Equipment: Enables accurate angular positioning in surveillance pan-tilt systems, telescope mounts, and laboratory automation equipment where backlash control is critical.
• Medical Device Actuation: Powers surgical robotic systems, dental equipment, and diagnostic machinery where compact size, smooth operation, and precise torque control are mandatory for patient safety.
• Hobby and Educational Robotics: Ideal for DIY robotics projects, competition robots, and educational platforms where engineers need reliable torque in a compact, affordable package.

How to Use

Begin by verifying your power supply delivers stable 12 Volts DC with adequate current capacity (typically 500mA to 1A depending on load). Connect the motor's positive terminal to the positive lead of your power source and the negative terminal to the negative lead using appropriate gauge wiring (minimum 18 AWG for standard installations). For directional control, incorporate a DPDT relay or motor controller that can reverse polarity to change rotation direction. Mount the motor securely using the provided mounting bracket or custom mechanical interface, ensuring the output shaft aligns concentrically with your driven load to prevent premature bearing wear and vibration.

For optimal performance, use flexible couplings when connecting to driven loads to accommodate minor misalignment and reduce shock loads transmitted to the gearbox. Apply power gradually and listen for smooth operation without grinding noises, which would indicate improper assembly or internal damage. If implementing speed control, use PWM (Pulse Width Modulation) controllers rated for 12V DC motors rather than simple voltage regulators, as PWM maintains consistent torque across the speed range while minimizing heat generation. Periodically inspect the motor for dust accumulation on the housing and wipe clean with a dry cloth. For continuous operation exceeding 8 hours daily, consider adding a small heatsink or ensuring adequate ventilation around the motor housing to maintain operating temperature below 60 degrees Celsius.

Frequently Asked Questions

What is the difference between this planetary gear motor and a standard spur gear motor?

Planetary gear motors distribute load across multiple gear teeth simultaneously through their orbital design, resulting in 40-50 percent higher torque density, lower backlash (typically under 5 degrees versus 10-15 degrees for spur gears), and significantly smoother operation with reduced vibration. The PG36M555-26.9K's planetary configuration also provides better efficiency (80+ percent versus 70-75 percent for spur designs) and extended service life, making it superior for precision applications requiring accurate positioning and minimal mechanical noise.

Can I operate this motor at voltages other than 12V?

Operating at voltages significantly different from 12V DC is not recommended. Voltages below 12V will reduce torque output and speed proportionally, potentially causing stalling under load. Voltages above 12V will increase current draw, generating excessive heat and potentially damaging the brushes and windings, significantly shortening motor life. For variable speed applications, use PWM controllers that maintain 12V peak voltage while varying duty cycle, preserving torque characteristics across the speed range.

What load can this motor safely drive continuously?

The PG36M555-26.9K is rated to deliver 72.5 N-cm of torque continuously at 185 RPM. For continuous operation, ensure your load does not exceed this torque specification and that ambient temperature remains below 50 degrees Celsius. Intermittent loads up to 150 percent of rated torque can be accommodated for brief periods (under 5 seconds), but sustained overloading will cause rapid bearing wear and gearbox damage. Always include mechanical load calculations in your design to ensure the motor operates within its thermal and mechanical limits.

How do I control the speed of this motor?

Use PWM (Pulse Width Modulation) speed controllers designed for 12V DC motors to vary speed from zero to maximum RPM while maintaining consistent torque output. PWM controllers switch the full 12V supply on and off at high frequency (typically 1-20 kHz), allowing proportional speed control without the heat generation and torque loss associated with linear voltage regulators. For directional control combined with speed adjustment, select a PWM controller with forward-reverse capability. Avoid simple rheostat voltage dividers as they reduce torque at lower speeds and generate excessive heat.

What is the expected lifespan of this motor under normal operating conditions?

Under normal operating conditions (12V DC supply, loads not exceeding rated torque, ambient temperature 20-40 degrees Celsius, 8 hours daily operation), the PG36M555-26.9K is designed for 5000+ operating hours before bearing wear becomes noticeable. Actual lifespan depends heavily on load characteristics, duty cycle, and maintenance. Continuous operation at maximum torque or elevated temperatures will reduce lifespan proportionally. Sealed bearing design minimizes maintenance requirements, though periodic inspection for unusual noise or vibration is recommended every 1000 operating hours.

When will I receive my order?

Orders are dispatched within 1-5 business days from our Bengaluru warehouse. Delivery takes 7-8 days to most locations across India.

What is your return and warranty policy?

We offer a 7-day return policy on manufacturing defects only. Contact support within 7 days of receipt for free replacement or full refund. Not applicable for user damage or misuse.

Are bulk discounts available?

Yes, wholesale pricing for orders of 10 or more units. Contact our sales team via WhatsApp or email for a customized bulk quote.

Why Buy from The Engineer

Buy Orange Planetary Gear DC Motor 12V 185RPM 72.5 N-cm PG36M555-26.9K Online in India

Purchase the Orange Planetary Gear DC Motor 12V 185RPM 72.5 N-cm PG36M555-26.9K online at The Engineer Store, India's trusted source for genuine electronics. We deliver across Bengaluru, Mumbai, Delhi, Chennai, Hyderabad, Pune, Kolkata, Ahmedabad, Jaipur, and Surat.

Our team in Bengaluru is available 24/7 to support your journey from product selection to project completion.