56% off
Orange Planetary Gear DC Motor 12V 236 RPM 18.6 N-cm PG28M395-21.5K
The Orange Planetary Gear DC Motor PG28M395-21.5K is a compact 12V brushed DC motor featuring a precision planetary gearbox that delivers 236 RPM output speed with exceptional torque of 18.6 N-cm, making it ideal for robotics, automation, and mechanical engineering applications. This motor is widely used by engineers, roboticists, and automation specialists who require high torque-to-size ratios and reliable performance in space-constrained designs. It solves the critical challenge of combining compact form factor with substantial mechanical power output, eliminating the need for external gear reduction systems in many applications.
Product Overview
The PG28M395-21.5K planetary gear DC motor operates on the principle of multi-stage gear reduction using three or more planet gears orbiting around a central sun gear, all enclosed within a ring gear. This configuration distributes load across multiple contact points, resulting in minimal backlash, high efficiency, and smooth power transmission. The 12V DC input drives the motor shaft through a commutator and brush assembly, while the planetary reduction system converts the motor's higher RPM output into lower speed with proportionally increased torque. The 21.5:1 gear ratio is precisely engineered to achieve the 236 RPM output specification while maintaining mechanical advantage for applications requiring sustained rotational force.
What distinguishes this Orange brand motor is its robust construction combining a high-quality permanent magnet DC motor with precision-cut gears manufactured to tight tolerances. The compact 28mm diameter housing integrates both motor and gearbox, reducing assembly complexity and mechanical losses. The sealed planetary gearbox design protects internal gears from dust and moisture, extending operational life in industrial and outdoor environments. With continuous torque delivery of 18.6 N-cm, this motor can sustain heavy loads without stalling, making it suitable for demanding applications including conveyor drives, robotic arm joints, and precision positioning systems where reliability is paramount.
Key Specifications
| Specification | Details |
| Product Type | Planetary Gear DC Motor with Integrated 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 |
| Input Voltage | 12V DC |
| Output Speed | 236 RPM |
| Output Torque | 18.6 N-cm |
| Gear Ratio | 21.5:1 |
| Motor Diameter | 28mm |
| Shaft Type | D-shaped output shaft with keyway |
Key Features
- High Torque Output: Delivers 18.6 N-cm of continuous torque enabling reliable operation under sustained mechanical loads without performance degradation
- Precision Planetary Gearbox: Three-stage gear reduction with minimal backlash ensures accurate positioning and smooth motion in robotic and automation applications
- Compact Integration: 28mm housing combines motor and gearbox in single unit reducing overall system size and assembly complexity by up to 40 percent
- Sealed Design: Fully enclosed planetary gearbox protects internal gears from dust, moisture, and contaminants extending operational lifespan in harsh industrial environments
- Efficient Power Transmission: Optimized gear geometry achieves approximately 85-90 percent mechanical efficiency minimizing energy loss and heat generation during operation
- Durable Construction: Precision-cut steel gears with hardened teeth resist wear and maintain consistent performance across thousands of operating hours
Applications and Use Cases
- Robotic Arm Joints: Provides precise torque control for multi-axis robotic arms in manufacturing and assembly lines where smooth motion and load-holding capability are essential
- Conveyor Drive Systems: Powers conveyor belts and material handling equipment requiring sustained torque delivery at moderate speeds for continuous industrial operations
- Precision Positioning: Enables accurate positioning in CNC machinery, medical devices, and laboratory automation where backlash-free transmission is critical for repeatability
- Mobile Robot Locomotion: Drives wheel motors in autonomous robots and AGVs requiring balanced torque and speed characteristics for terrain navigation and obstacle handling
- Automated Door and Gate Systems: Controls sliding doors, gates, and access barriers in commercial facilities requiring reliable torque output with fail-safe operation
- Winch and Lifting Mechanisms: Powers small-scale winches, cable drives, and lifting systems where compact size combined with substantial mechanical advantage is required
How to Use
To operate the Orange Planetary Gear DC Motor PG28M395-21.5K, connect the positive terminal to the 12V power supply and the negative terminal to ground, ensuring proper polarity to prevent motor damage. The motor will immediately begin rotating at 236 RPM with full torque available from startup. For directional control, simply reverse the polarity of the power connections. Install the output shaft into your driven mechanism using the D-shaped shaft and keyway, ensuring the key is properly seated to prevent slippage. Secure the motor housing using the mounting bracket provisions, allowing for vibration isolation if operating in sensitive applications.
For optimal performance and longevity, maintain the 12V supply voltage within plus or minus 10 percent tolerance, as voltage variations affect speed and torque characteristics. If operating continuously for extended periods, monitor motor temperature and ensure adequate ventilation around the housing to prevent thermal stress. The sealed gearbox requires no lubrication maintenance, but inspect the shaft and bearings annually for signs of wear or contamination. When not in use for extended periods, store the motor in a dry environment to prevent corrosion of internal components. For applications requiring variable speed control, use a PWM speed controller rated for 12V DC motors, though note that torque output decreases proportionally with speed reduction.
Frequently Asked Questions
What is the difference between this planetary gear motor and a standard geared motor?
Planetary gear motors use multiple planet gears orbiting a central sun gear, distributing loads across several contact points simultaneously. This design provides significantly lower backlash typically under 5 degrees compared to 15-30 degrees in spur gear motors, resulting in more precise positioning. Planetary systems also offer higher torque density, meaning more output torque per unit volume, making them ideal for compact applications like robotics where space is limited and precision is critical.
Can this motor handle intermittent overload conditions?
The PG28M395-21.5K is rated for 18.6 N-cm continuous torque, meaning it can sustain this load indefinitely without thermal damage. Brief overload periods up to 150 percent of rated torque may be tolerable for seconds, but sustained overloading causes motor heating and reduces lifespan. For applications with frequent peak loads, calculate average torque demand and ensure it remains below the 18.6 N-cm rating. Thermal protection is not built-in, so you must monitor operating conditions and implement external load management if necessary.
What is the no-load current and stall current of this motor?
Typical no-load current is approximately 0.3-0.5 amperes at 12V, representing the current required to overcome internal friction and motor losses when rotating freely. Stall current when the output shaft is mechanically locked reaches approximately 3-5 amperes depending on motor condition. Prolonged stalling causes rapid heating and potential damage, so always ensure adequate mechanical load path and never block the output shaft. Use a current-limiting power supply or fuse rated for 5-10 amperes to protect against accidental stall conditions.
How much backlash does this planetary gearbox have?
The PG28M395-21.5K planetary gearbox typically exhibits backlash of 3-5 degrees of output shaft rotation, which is significantly lower than comparable spur gear reducers. This minimal backlash makes it suitable for precision positioning applications where accuracy is important. If your application requires zero-backlash operation, consider adding a spring-loaded anti-backlash coupling to the output shaft, which compensates for any gear mesh play and improves positioning repeatability to within 1 degree.
Is this motor suitable for outdoor or wet environments?
The sealed planetary gearbox provides excellent protection against dust and moisture ingress, making this motor more resilient than open-gear designs. However, the motor housing itself is not fully waterproof, and prolonged exposure to water spray or submersion will damage the brush assembly and windings. For outdoor applications, use weatherproof enclosures or conformal coating on electrical connections. Avoid direct water contact and ensure drainage pathways around the motor to prevent water pooling. For truly waterproof operation, consult our technical team about specialized enclosure options.
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 236 RPM 18.6 N-cm PG28M395-21.5K Online in India
Purchase the Orange Planetary Gear DC Motor 12V 236 RPM 18.6 N-cm PG28M395-21.5K online at The Engineer Store, India's trusted source for genuine electronics. We deliver across Bengaluru, Mumbai, Delhi, Chennai, Hyderabad, Pune, Kolkata, Ahmedabad, Jaipur,
Orange Planetary Gear DC Motor 12V 236 RPM 18.6 N-cm PG28M395-21.5K
The Orange Planetary Gear DC Motor PG28M395-21.5K is a compact 12V brushed DC motor featuring a precision planetary gearbox that delivers 236 RPM output speed with exceptional torque of 18.6 N-cm, making it ideal for robotics, automation, and mechanical engineering applications. This motor is widely used by engineers, roboticists, and automation specialists who require high torque-to-size ratios and reliable performance in space-constrained designs. It solves the critical challenge of combining compact form factor with substantial mechanical power output, eliminating the need for external gear reduction systems in many applications.
Product Overview
The PG28M395-21.5K planetary gear DC motor operates on the principle of multi-stage gear reduction using three or more planet gears orbiting around a central sun gear, all enclosed within a ring gear. This configuration distributes load across multiple contact points, resulting in minimal backlash, high efficiency, and smooth power transmission. The 12V DC input drives the motor shaft through a commutator and brush assembly, while the planetary reduction system converts the motor's higher RPM output into lower speed with proportionally increased torque. The 21.5:1 gear ratio is precisely engineered to achieve the 236 RPM output specification while maintaining mechanical advantage for applications requiring sustained rotational force.
What distinguishes this Orange brand motor is its robust construction combining a high-quality permanent magnet DC motor with precision-cut gears manufactured to tight tolerances. The compact 28mm diameter housing integrates both motor and gearbox, reducing assembly complexity and mechanical losses. The sealed planetary gearbox design protects internal gears from dust and moisture, extending operational life in industrial and outdoor environments. With continuous torque delivery of 18.6 N-cm, this motor can sustain heavy loads without stalling, making it suitable for demanding applications including conveyor drives, robotic arm joints, and precision positioning systems where reliability is paramount.
Key Specifications
| Specification | Details |
| Product Type | Planetary Gear DC Motor with Integrated 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 |
| Input Voltage | 12V DC |
| Output Speed | 236 RPM |
| Output Torque | 18.6 N-cm |
| Gear Ratio | 21.5:1 |
| Motor Diameter | 28mm |
| Shaft Type | D-shaped output shaft with keyway |
Key Features
- High Torque Output: Delivers 18.6 N-cm of continuous torque enabling reliable operation under sustained mechanical loads without performance degradation
- Precision Planetary Gearbox: Three-stage gear reduction with minimal backlash ensures accurate positioning and smooth motion in robotic and automation applications
- Compact Integration: 28mm housing combines motor and gearbox in single unit reducing overall system size and assembly complexity by up to 40 percent
- Sealed Design: Fully enclosed planetary gearbox protects internal gears from dust, moisture, and contaminants extending operational lifespan in harsh industrial environments
- Efficient Power Transmission: Optimized gear geometry achieves approximately 85-90 percent mechanical efficiency minimizing energy loss and heat generation during operation
- Durable Construction: Precision-cut steel gears with hardened teeth resist wear and maintain consistent performance across thousands of operating hours
Applications and Use Cases
- Robotic Arm Joints: Provides precise torque control for multi-axis robotic arms in manufacturing and assembly lines where smooth motion and load-holding capability are essential
- Conveyor Drive Systems: Powers conveyor belts and material handling equipment requiring sustained torque delivery at moderate speeds for continuous industrial operations
- Precision Positioning: Enables accurate positioning in CNC machinery, medical devices, and laboratory automation where backlash-free transmission is critical for repeatability
- Mobile Robot Locomotion: Drives wheel motors in autonomous robots and AGVs requiring balanced torque and speed characteristics for terrain navigation and obstacle handling
- Automated Door and Gate Systems: Controls sliding doors, gates, and access barriers in commercial facilities requiring reliable torque output with fail-safe operation
- Winch and Lifting Mechanisms: Powers small-scale winches, cable drives, and lifting systems where compact size combined with substantial mechanical advantage is required
How to Use
To operate the Orange Planetary Gear DC Motor PG28M395-21.5K, connect the positive terminal to the 12V power supply and the negative terminal to ground, ensuring proper polarity to prevent motor damage. The motor will immediately begin rotating at 236 RPM with full torque available from startup. For directional control, simply reverse the polarity of the power connections. Install the output shaft into your driven mechanism using the D-shaped shaft and keyway, ensuring the key is properly seated to prevent slippage. Secure the motor housing using the mounting bracket provisions, allowing for vibration isolation if operating in sensitive applications.
For optimal performance and longevity, maintain the 12V supply voltage within plus or minus 10 percent tolerance, as voltage variations affect speed and torque characteristics. If operating continuously for extended periods, monitor motor temperature and ensure adequate ventilation around the housing to prevent thermal stress. The sealed gearbox requires no lubrication maintenance, but inspect the shaft and bearings annually for signs of wear or contamination. When not in use for extended periods, store the motor in a dry environment to prevent corrosion of internal components. For applications requiring variable speed control, use a PWM speed controller rated for 12V DC motors, though note that torque output decreases proportionally with speed reduction.
Frequently Asked Questions
What is the difference between this planetary gear motor and a standard geared motor?
Planetary gear motors use multiple planet gears orbiting a central sun gear, distributing loads across several contact points simultaneously. This design provides significantly lower backlash typically under 5 degrees compared to 15-30 degrees in spur gear motors, resulting in more precise positioning. Planetary systems also offer higher torque density, meaning more output torque per unit volume, making them ideal for compact applications like robotics where space is limited and precision is critical.
Can this motor handle intermittent overload conditions?
The PG28M395-21.5K is rated for 18.6 N-cm continuous torque, meaning it can sustain this load indefinitely without thermal damage. Brief overload periods up to 150 percent of rated torque may be tolerable for seconds, but sustained overloading causes motor heating and reduces lifespan. For applications with frequent peak loads, calculate average torque demand and ensure it remains below the 18.6 N-cm rating. Thermal protection is not built-in, so you must monitor operating conditions and implement external load management if necessary.
What is the no-load current and stall current of this motor?
Typical no-load current is approximately 0.3-0.5 amperes at 12V, representing the current required to overcome internal friction and motor losses when rotating freely. Stall current when the output shaft is mechanically locked reaches approximately 3-5 amperes depending on motor condition. Prolonged stalling causes rapid heating and potential damage, so always ensure adequate mechanical load path and never block the output shaft. Use a current-limiting power supply or fuse rated for 5-10 amperes to protect against accidental stall conditions.
How much backlash does this planetary gearbox have?
The PG28M395-21.5K planetary gearbox typically exhibits backlash of 3-5 degrees of output shaft rotation, which is significantly lower than comparable spur gear reducers. This minimal backlash makes it suitable for precision positioning applications where accuracy is important. If your application requires zero-backlash operation, consider adding a spring-loaded anti-backlash coupling to the output shaft, which compensates for any gear mesh play and improves positioning repeatability to within 1 degree.
Is this motor suitable for outdoor or wet environments?
The sealed planetary gearbox provides excellent protection against dust and moisture ingress, making this motor more resilient than open-gear designs. However, the motor housing itself is not fully waterproof, and prolonged exposure to water spray or submersion will damage the brush assembly and windings. For outdoor applications, use weatherproof enclosures or conformal coating on electrical connections. Avoid direct water contact and ensure drainage pathways around the motor to prevent water pooling. For truly waterproof operation, consult our technical team about specialized enclosure options.
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 236 RPM 18.6 N-cm PG28M395-21.5K Online in India
Purchase the Orange Planetary Gear DC Motor 12V 236 RPM 18.6 N-cm PG28M395-21.5K online at The Engineer Store, India's trusted source for genuine electronics. We deliver across Bengaluru, Mumbai, Delhi, Chennai, Hyderabad, Pune, Kolkata, Ahmedabad, Jaipur,