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HiTec HS-5085MG Premium Metal Gear Micro Servo
The HiTec HS-5085MG is a high-performance micro servo motor featuring premium metal gears, designed for precision robotics, RC aircraft, and autonomous systems requiring accurate angular positioning. Professional engineers and hobbyists rely on this servo for applications demanding high torque output in a compact form factor with minimal backlash and excellent repeatability. This servo solves the critical challenge of achieving reliable, smooth motion control in weight-sensitive and space-constrained applications where standard plastic-gear servos fail to deliver consistent performance.
Product Overview
The HiTec HS-5085MG operates on a closed-loop feedback system using a precision potentiometer to continuously monitor shaft position and compare it against the input signal. The servo internally amplifies control signals through a dedicated IC controller, driving a high-torque DC motor that engages metal gear reduction train to deliver amplified rotational force at the output shaft. The metal gear construction eliminates the wear and backlash inherent in plastic gears, enabling this servo to maintain positional accuracy across thousands of operating cycles while handling sustained loads that would strip conventional plastic-gear servos.
What distinguishes the HS-5085MG is its integration of coreless motor technology combined with dual-bearing output shaft support, reducing friction losses and enabling faster response times compared to iron-core alternatives. The servo accepts standard PWM control signals from microcontrollers, RC receivers, and flight controllers, making it universally compatible with Arduino, Raspberry Pi, and professional autopilot systems. Its compact 21mm width profile fits into tight airframe cavities and robotic joints while maintaining the torque output necessary for control surface actuation and precision manipulation tasks.
Key Specifications
| Specification | Details |
| Product Type | Micro Servo Motor with Metal Gears |
| Brand | HiTec (Hitec RCD USA) |
| 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 |
| Operating Voltage | 4.8V to 6.0V DC |
| Stall Torque | 4.2 kg-cm at 6.0V |
| Operating Speed | 0.14 seconds per 60 degrees at 6.0V |
| Gear Type | All-Metal Gear Train |
| Control Signal | Standard PWM (1000-2000 microseconds) |
| Dimensions | 21.8mm W x 40.6mm L x 36.8mm H |
| Weight | 16.5 grams |
| Shaft Type | Dual-bearing with servo arm compatibility |
Key Features
- All-Metal Gear Construction: Eliminates backlash and wear, delivering consistent positioning accuracy across 100,000+ operating cycles with minimal drift
- Coreless Motor Design: Reduces inertia and friction, enabling 0.14-second response time for rapid control surface adjustments in RC aircraft and quadcopters
- Dual-Bearing Output Shaft: Provides radial and axial load support, allowing side-load applications in robotic arms and gimbal systems without premature bearing wear
- Standard PWM Compatibility: Accepts 1000-2000 microsecond control signals, ensuring plug-and-play integration with Arduino, Pixhawk, and commercial RC receivers
- Compact Micro Profile: 21.8mm width fits into tight airframe cavities and miniature robot joints while maintaining 4.2 kg-cm stall torque output
- Low-Noise Operation: Metal gears with precision machining produce minimal audible noise compared to plastic alternatives, critical for surveillance and stealth applications
Applications and Use Cases
- RC Aircraft Control: Actuates ailerons, elevators, and rudders in fixed-wing aircraft and drones where fast response time and load-bearing capacity are essential for stable flight control
- Quadcopter Gimbal Systems: Stabilizes camera payloads with precise pitch and roll correction, using the servo's low backlash to maintain smooth video footage during aggressive maneuvers
- Robotic Arm Joints: Powers secondary joint actuation in 6-DOF robotic arms where metal gears prevent slip-back under load and maintain repeatable positioning for pick-and-place operations
- Autonomous Vehicle Steering: Controls steering linkages in ground robots and self-driving platforms, where reliability and backlash-free operation directly impact navigation accuracy
- Precision Instrumentation: Drives mechanical selectors, valve actuators, and positioning mechanisms in laboratory automation equipment requiring sub-degree accuracy
- Model Engineering Projects: Actuates moving parts in scale models, animatronics, and educational robotics kits where durability and smooth operation enhance demonstration quality
How to Use
Connect the HiTec HS-5085MG to your control system by wiring the three-pin connector: Red wire to positive power supply (4.8-6.0V), Black wire to ground, and Yellow/White signal wire to your PWM output pin on your microcontroller or RC receiver. Configure your controller to generate PWM signals in the 1000-2000 microsecond range, where 1500 microseconds typically centers the servo shaft at neutral position, 1000 microseconds rotates fully counterclockwise, and 2000 microseconds rotates fully clockwise. Allow 50-100 milliseconds for the servo to reach commanded position, then verify smooth movement without grinding sounds or erratic behavior before mounting under load.
For mechanical installation, attach the appropriate servo arm to the splined output shaft using the supplied fastener, ensuring the arm is positioned at neutral when your control system sends 1500-microsecond pulses. Mount the servo body using the provided mounting holes with M2 fasteners, avoiding over-tightening which can bind the output shaft. If the servo will experience sustained side-loads (such as in gimbal applications), reinforce the mounting bracket to distribute stress across the dual bearings rather than concentrating force on a single mounting point. Verify power supply stability and current capacity before extended operation, as metal-gear servos draw 500-800mA during rapid movements.
Frequently Asked Questions
What is the difference between metal gear and plastic gear servos?
Metal gears offer significantly lower backlash (typically 1-2 degrees versus 3-5 degrees in plastic), superior wear resistance allowing 10x longer operational life, and the ability to sustain continuous loads without stripping teeth. However, metal-gear servos cost 3-4x more and weigh slightly more. For precision applications like camera gimbals and robotic arms, metal gears are essential; for simple RC applications, plastic gears suffice.
Can I use the HS-5085MG with a 5V power supply instead of 6V?
Yes, the HS-5085MG operates reliably from 4.8V to 6.0V. At 5V, you will experience approximately 15-20% reduction in torque output and slightly slower response speed compared to 6V operation, but the servo will function normally without damage. For applications requiring full performance, use a regulated 6.0V power supply with adequate current capacity (minimum 1A for multiple servos).
How do I calibrate the servo center position with my flight controller?
Most flight controllers like Pixhawk and Betaflight include servo calibration routines. Access the calibration menu, select the servo channel, and command the servo through its full range (1000-2000 microseconds) while observing physical movement. If the servo does not center at 1500 microseconds, adjust the trim offset in your controller's servo configuration until neutral position aligns with your mechanical neutral. Some servos include a small potentiometer adjustment screw for fine-tuning, but software calibration is preferred to avoid mechanical wear.
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 HiTec HS-5085MG Premium Metal Gear Micro Servo Online in India
Purchase the HiTec HS-5085MG Premium Metal Gear Micro Servo 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 HiTec HS-5085MG Premium Metal Gear Micro Servo with fast shipping and expert support.
Our team in Bengaluru is available 24/7 to support your journey from product selection to project completion.
HiTec HS-5085MG Premium Metal Gear Micro Servo
The HiTec HS-5085MG is a high-performance micro servo motor featuring premium metal gears, designed for precision robotics, RC aircraft, and autonomous systems requiring accurate angular positioning. Professional engineers and hobbyists rely on this servo for applications demanding high torque output in a compact form factor with minimal backlash and excellent repeatability. This servo solves the critical challenge of achieving reliable, smooth motion control in weight-sensitive and space-constrained applications where standard plastic-gear servos fail to deliver consistent performance.
Product Overview
The HiTec HS-5085MG operates on a closed-loop feedback system using a precision potentiometer to continuously monitor shaft position and compare it against the input signal. The servo internally amplifies control signals through a dedicated IC controller, driving a high-torque DC motor that engages metal gear reduction train to deliver amplified rotational force at the output shaft. The metal gear construction eliminates the wear and backlash inherent in plastic gears, enabling this servo to maintain positional accuracy across thousands of operating cycles while handling sustained loads that would strip conventional plastic-gear servos.
What distinguishes the HS-5085MG is its integration of coreless motor technology combined with dual-bearing output shaft support, reducing friction losses and enabling faster response times compared to iron-core alternatives. The servo accepts standard PWM control signals from microcontrollers, RC receivers, and flight controllers, making it universally compatible with Arduino, Raspberry Pi, and professional autopilot systems. Its compact 21mm width profile fits into tight airframe cavities and robotic joints while maintaining the torque output necessary for control surface actuation and precision manipulation tasks.
Key Specifications
| Specification | Details |
| Product Type | Micro Servo Motor with Metal Gears |
| Brand | HiTec (Hitec RCD USA) |
| 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 |
| Operating Voltage | 4.8V to 6.0V DC |
| Stall Torque | 4.2 kg-cm at 6.0V |
| Operating Speed | 0.14 seconds per 60 degrees at 6.0V |
| Gear Type | All-Metal Gear Train |
| Control Signal | Standard PWM (1000-2000 microseconds) |
| Dimensions | 21.8mm W x 40.6mm L x 36.8mm H |
| Weight | 16.5 grams |
| Shaft Type | Dual-bearing with servo arm compatibility |
Key Features
- All-Metal Gear Construction: Eliminates backlash and wear, delivering consistent positioning accuracy across 100,000+ operating cycles with minimal drift
- Coreless Motor Design: Reduces inertia and friction, enabling 0.14-second response time for rapid control surface adjustments in RC aircraft and quadcopters
- Dual-Bearing Output Shaft: Provides radial and axial load support, allowing side-load applications in robotic arms and gimbal systems without premature bearing wear
- Standard PWM Compatibility: Accepts 1000-2000 microsecond control signals, ensuring plug-and-play integration with Arduino, Pixhawk, and commercial RC receivers
- Compact Micro Profile: 21.8mm width fits into tight airframe cavities and miniature robot joints while maintaining 4.2 kg-cm stall torque output
- Low-Noise Operation: Metal gears with precision machining produce minimal audible noise compared to plastic alternatives, critical for surveillance and stealth applications
Applications and Use Cases
- RC Aircraft Control: Actuates ailerons, elevators, and rudders in fixed-wing aircraft and drones where fast response time and load-bearing capacity are essential for stable flight control
- Quadcopter Gimbal Systems: Stabilizes camera payloads with precise pitch and roll correction, using the servo's low backlash to maintain smooth video footage during aggressive maneuvers
- Robotic Arm Joints: Powers secondary joint actuation in 6-DOF robotic arms where metal gears prevent slip-back under load and maintain repeatable positioning for pick-and-place operations
- Autonomous Vehicle Steering: Controls steering linkages in ground robots and self-driving platforms, where reliability and backlash-free operation directly impact navigation accuracy
- Precision Instrumentation: Drives mechanical selectors, valve actuators, and positioning mechanisms in laboratory automation equipment requiring sub-degree accuracy
- Model Engineering Projects: Actuates moving parts in scale models, animatronics, and educational robotics kits where durability and smooth operation enhance demonstration quality
How to Use
Connect the HiTec HS-5085MG to your control system by wiring the three-pin connector: Red wire to positive power supply (4.8-6.0V), Black wire to ground, and Yellow/White signal wire to your PWM output pin on your microcontroller or RC receiver. Configure your controller to generate PWM signals in the 1000-2000 microsecond range, where 1500 microseconds typically centers the servo shaft at neutral position, 1000 microseconds rotates fully counterclockwise, and 2000 microseconds rotates fully clockwise. Allow 50-100 milliseconds for the servo to reach commanded position, then verify smooth movement without grinding sounds or erratic behavior before mounting under load.
For mechanical installation, attach the appropriate servo arm to the splined output shaft using the supplied fastener, ensuring the arm is positioned at neutral when your control system sends 1500-microsecond pulses. Mount the servo body using the provided mounting holes with M2 fasteners, avoiding over-tightening which can bind the output shaft. If the servo will experience sustained side-loads (such as in gimbal applications), reinforce the mounting bracket to distribute stress across the dual bearings rather than concentrating force on a single mounting point. Verify power supply stability and current capacity before extended operation, as metal-gear servos draw 500-800mA during rapid movements.
Frequently Asked Questions
What is the difference between metal gear and plastic gear servos?
Metal gears offer significantly lower backlash (typically 1-2 degrees versus 3-5 degrees in plastic), superior wear resistance allowing 10x longer operational life, and the ability to sustain continuous loads without stripping teeth. However, metal-gear servos cost 3-4x more and weigh slightly more. For precision applications like camera gimbals and robotic arms, metal gears are essential; for simple RC applications, plastic gears suffice.
Can I use the HS-5085MG with a 5V power supply instead of 6V?
Yes, the HS-5085MG operates reliably from 4.8V to 6.0V. At 5V, you will experience approximately 15-20% reduction in torque output and slightly slower response speed compared to 6V operation, but the servo will function normally without damage. For applications requiring full performance, use a regulated 6.0V power supply with adequate current capacity (minimum 1A for multiple servos).
How do I calibrate the servo center position with my flight controller?
Most flight controllers like Pixhawk and Betaflight include servo calibration routines. Access the calibration menu, select the servo channel, and command the servo through its full range (1000-2000 microseconds) while observing physical movement. If the servo does not center at 1500 microseconds, adjust the trim offset in your controller's servo configuration until neutral position aligns with your mechanical neutral. Some servos include a small potentiometer adjustment screw for fine-tuning, but software calibration is preferred to avoid mechanical wear.
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 HiTec HS-5085MG Premium Metal Gear Micro Servo Online in India
Purchase the HiTec HS-5085MG Premium Metal Gear Micro Servo 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 HiTec HS-5085MG Premium Metal Gear Micro Servo with fast shipping and expert support.
Our team in Bengaluru is available 24/7 to support your journey from product selection to project completion.