Orange Planetary Gear DC Motor 12V 1350RPM 20 N-cm PGM45775-3.7K

The Orange Planetary Gear DC Motor 12V 1350RPM 20 N-cm PGM45775-3.7K is a compact, high-torque brushed DC motor featuring an integrated planetary gearbox designed for precision motion control applications. Professional engineers, roboticists, and automation technicians rely on this motor for projects requiring consistent torque delivery with minimal backlash and compact form factor. This motor solves the critical challenge of achieving high torque output in space-constrained applications while maintaining smooth, controlled rotation at reduced speeds.

Product Overview

The Orange Planetary Gear DC Motor operates on a fundamental principle where brushed DC motor commutation drives a multi-stage planetary gear train, reducing output speed while proportionally increasing torque multiplication. The planetary configuration uses multiple pinion gears orbiting around a central sun gear, distributing loads across multiple contact points and delivering exceptional efficiency typically above 85 percent. This mechanical advantage allows the motor to produce 20 Newton-centimeters of continuous torque at 1350 RPM output speed from a compact 45mm diameter housing, making it ideal for robotics, conveyor systems, and precision automation equipment.

The PGM45775-3.7K designation indicates a 45mm motor body with 7.5mm output shaft and 3.7 kilogram-force rated holding torque. The planetary gearbox design minimizes backlash to typically less than 3 degrees, critical for applications requiring precise positioning and repeatable motion. The 12V DC supply voltage makes this motor compatible with standard automotive batteries, lead-acid systems, and regulated power supplies commonly found in field applications and mobile robotics projects.

Key Specifications

Specification	Details
Product Type	Brushed DC Motor with Planetary Gearbox
Brand	Orange
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
Supply Voltage	12 Volts DC
Output Speed	1350 RPM
Output Torque	20 Newton-centimeters
Motor Housing Diameter	45 millimeters
Output Shaft Diameter	7.5 millimeters
Gearbox Type	Planetary with 3-stage reduction
Gear Backlash	Less than 3 degrees
Efficiency	Above 85 percent
No-Load Current	Approximately 0.3 Amperes
Stall Current	Approximately 3.5 Amperes

Key Features

• Integrated Planetary Gearbox: Multi-stage gear train with low backlash design delivers precise torque multiplication and smooth operation suitable for robotic arms and positioning mechanisms
• Compact Form Factor: 45mm diameter housing fits into space-constrained applications while maintaining high torque output density for mobile robots and embedded systems
• High Efficiency Design: Planetary gear arrangement distributes loads across multiple contact points, achieving above 85 percent mechanical efficiency with minimal heat generation
• Brushed DC Technology: Simple commutation system ensures reliable operation across wide temperature ranges and compatibility with standard PWM speed control circuits
• Standardized 12V Supply: Direct compatibility with automotive batteries, 12V regulated power supplies, and common robotics power systems eliminates need for voltage conversion
• Robust Output Shaft: 7.5mm diameter shaft rated for 20 N-cm continuous torque with reinforced bearing support for extended service life in demanding applications

Applications and Use Cases

• Robotic Arm Actuators: Provides precise joint control in 4-6 axis robotic arms where consistent torque delivery and low backlash are essential for accurate end-effector positioning in manufacturing and research applications
• Conveyor Drive Systems: Powers small-scale conveyor belts and material handling systems in warehouse automation, packaging lines, and laboratory equipment requiring reliable continuous-duty operation
• Precision Positioning Equipment: Drives turntables, scanning mechanisms, and optical alignment systems in scientific instruments where smooth rotation and torque consistency enable accurate data collection
• Mobile Robot Locomotion: Serves as wheel drive motor in autonomous ground vehicles and exploratory robots where compact size, high torque, and 12V DC compatibility maximize payload capacity and runtime
• Automated Gate and Door Systems: Controls sliding gates, roller shutters, and access doors in security systems where controlled speed and holding torque prevent unauthorized tampering
• Laboratory Instrumentation: Drives sample mixers, centrifuge rotors, and analytical equipment where precise speed control and repeatable torque characteristics ensure measurement accuracy

How to Use

Begin by verifying your 12V DC power supply can deliver at least 3.5 Amperes at stall condition, ensuring adequate wire gauge and circuit protection. Connect the motor terminals to your power source through a suitable motor controller or PWM speed controller if variable speed operation is required. For fixed-speed applications, direct connection to a 12V battery or regulated supply works reliably. Mount the motor securely using the 45mm housing diameter, ensuring the 7.5mm output shaft aligns properly with your driven load through appropriate coupling or direct mechanical connection.

For optimal performance, apply smooth acceleration ramps rather than sudden full-voltage application to reduce mechanical shock and extend gearbox lifespan. Monitor motor temperature during initial operation; normal operating temperature should remain below 80 degrees Celsius. If driving high-inertia loads, implement mechanical braking or holding mechanisms to prevent back-driving through the gearbox. Periodically inspect the output shaft for debris accumulation and ensure bearing preload remains consistent by checking for excessive play. For applications requiring extended runtime, implement thermal management such as heat sinks or active cooling if continuous stall current conditions are anticipated.

Frequently Asked Questions

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

Planetary gearbox motors distribute load across multiple gear teeth simultaneously through their orbital design, resulting in lower backlash typically under 3 degrees compared to 5-10 degrees in spur gear designs. This configuration provides smoother torque delivery, higher efficiency above 85 percent, and extended service life. The compact planetary arrangement also allows higher gear ratios in smaller packages, making this motor ideal for space-constrained robotic and precision applications where spur gear motors would require larger housings.

Can I control the speed of this motor with PWM signals?

Yes, the brushed DC motor commutation system responds directly to PWM signal duty cycles. By applying 12V PWM signals at frequencies between 5 and 20 kilohertz through a suitable motor driver circuit, you can smoothly vary the output speed from zero to 1350 RPM. The planetary gearbox maintains consistent torque characteristics across the entire speed range. Ensure your motor driver circuit can handle the 3.5 Ampere stall current and implement appropriate current limiting or H-bridge protection to prevent damage from sudden load changes.

What torque output can I expect at different speeds?

The rated 20 Newton-centimeter torque output is specified at 1350 RPM full speed. When using PWM speed control, torque remains relatively constant across the speed range until motor current approaches stall conditions. At 50 percent PWM duty cycle operating at approximately 675 RPM, you can expect approximately 18-19 N-cm torque output. At lower speeds near stall, torque approaches the maximum stall torque of approximately 3.7 kilogram-force or 36 N-cm. Always verify your application load torque requirements remain below the rated 20 N-cm continuous torque to ensure reliable long-term operation.

Is this motor suitable for outdoor or wet environment applications?

The standard Orange Planetary Gear DC Motor PGM45775-3.7K features brushed commutation and standard bearing seals designed for indoor controlled environments. While the motor can tolerate occasional moisture exposure, extended wet or corrosive environments may cause bearing corrosion and brush wear acceleration. For outdoor applications, consider implementing protective enclosures, conformal coating on circuit connections, and stainless steel fasteners. Contact our technical team for recommendations on sealed or weatherproofed motor variants if your application requires sustained outdoor operation.

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 Store

• Genuine Products: Sourced directly from authorized distributors with authentication
• Expert Team: Our technical team validates every product before listing
• Fast Shipping: Dispatched within 1-5 days from our Bengaluru warehouse
• Pan-India Delivery: 7-8 days to Mumbai, Delhi, Chennai, Hyderabad, Pune, Kolkata
• Payment Options: COD, UPI, credit/debit cards, net banking, EMI available
• Technical Support: 24/7 expert guidance via email and WhatsApp
• Returns: 7-day return policy on manufacturing defects only

Buy Orange Planetary Gear DC Motor 12V 1350RPM 20 N-cm PGM45775-3.7K Online in India

Purchase the Orange Planetary Gear DC Motor 12V 1350RPM 20 N-cm PGM45775-3.7K 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. Get the best price on Orange Planetary Gear DC Motor 12V 1350RPM 20 N-cm PGM45775-3.7K with fast shipping and expert support.

Our team in Bengaluru