Hitec HS-485HB Deluxe HD Ball Bearing Standard Servo
Hitec HS-485HB Deluxe HD Ball Bearing Standard Servo
Hitec HS-485HB Deluxe HD Ball Bearing Standard Servo
The Hitec HS-485HB is a high-performance standard servo motor featuring dual ball bearings and metal gearing, engineered for precision robotics, RC aircraft, and automation applications requiring reliable positioning control. Professional engineers and hobbyists rely on this servo for its exceptional torque output of 42 kg-cm and rapid response time of 0.20 seconds at 4.8V, delivering consistent performance in demanding mechanical systems. This servo solves the critical challenge of maintaining accurate position control under load while minimizing backlash and wear, making it ideal for applications where durability and repeatability are non-negotiable.
Product Overview
The Hitec HS-485HB Deluxe HD operates on a pulse-width modulation (PWM) control system, accepting standard servo signals from microcontroller boards, RC receivers, and servo controllers. The servo's internal mechanism consists of a precision potentiometer feedback circuit that continuously monitors shaft position and compares it against the input signal, driving the motor through a multi-stage metal gear train until the desired angle is achieved. The dual ball bearing design eliminates friction-induced play that typically develops in sleeve-bearing servos, ensuring the output shaft maintains concentricity and smooth rotation even after thousands of operating cycles. This engineering approach provides superior longevity compared to standard servos, with the metal gear construction capable of handling sustained torque loads without stripping or deformation.
What distinguishes the HS-485HB from competitor models is its optimized speed-to-torque ratio, delivering 42 kg-cm of holding torque while maintaining a swift 0.20-second transit time at 4.8V operation. The servo operates across a standard 90-degree range with typical pulse widths of 1000-2000 microseconds, making it fully compatible with industry-standard servo control interfaces. The housing features reinforced plastic construction with metal servo horn mounting points, providing secure attachment for various mechanical linkages. Operating voltage range of 4.8V to 6.0V allows flexible power supply configuration while maintaining performance specifications, and the servo draws approximately 5-7mA at idle with peak current reaching 900mA under full load conditions.
Key Specifications
| Specification | Details |
| Product Type | Standard Servo Motor with Ball Bearing Output Shaft |
| Brand | Hitec |
| Model | HS-485HB Deluxe HD |
| 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 |
| Torque Output | 42 kg-cm at 4.8V, 48 kg-cm at 6.0V |
| Speed | 0.20 seconds per 60 degrees at 4.8V |
| Control Range | 90 degrees standard, PWM signal control |
| Idle Current | 5-7mA at 4.8V |
| Peak Current | 900mA under full load |
| Bearing Type | Dual ball bearings on output shaft |
| Gear Material | Metal gears with reinforced plastic housing |
Key Features
- Dual Ball Bearing Design: Eliminates shaft play and reduces friction-induced wear, providing superior longevity and precision positioning accuracy in long-duration applications
- High Torque Output: Delivers 42 kg-cm at 4.8V and 48 kg-cm at 6.0V, enabling control of heavier mechanical loads without motor stalling or performance degradation
- Rapid Response Time: 0.20-second transit speed per 60 degrees ensures quick positional adjustments critical for dynamic control systems and real-time feedback applications
- Metal Gear Construction: Precision-cut metal gears resist stripping and deformation under sustained load, outperforming plastic gear alternatives in industrial and professional applications
- Wide Operating Voltage Range: Functions reliably between 4.8V and 6.0V, accommodating various power supply configurations and battery chemistries without signal loss
- Standard PWM Interface: Compatible with all microcontroller platforms, RC receivers, and servo controllers using industry-standard 1000-2000 microsecond pulse width signals
Applications and Use Cases
- RC Aircraft and Helicopter Control: Provides precise aileron, elevator, and rudder positioning with the rapid response necessary for stable flight dynamics and aerobatic maneuvers
- Robotics and Mechanical Automation: Drives joint actuators in robotic arms, quadrupeds, and humanoid platforms where repeatable positioning and load-bearing capacity are essential
- Pan-Tilt Camera Systems: Controls horizontal and vertical camera orientation in surveillance, broadcast, and scientific imaging applications requiring smooth, jitter-free movement
- Industrial Control Systems: Operates valve actuators, damper controls, and mechanical switches in HVAC, manufacturing, and process automation environments with demanding duty cycles
- Model Engineering and Prototyping: Drives mechanical linkages in scale models, engineering demonstrations, and proof-of-concept projects where reliability and precision are critical
- Antenna Tracking Systems: Positions directional antennas and satellite communication equipment with the accuracy needed to maintain signal lock during extended operation
How to Use
To integrate the Hitec HS-485HB into your system, first establish a stable power supply delivering 4.8V to 6.0V with sufficient current capacity (minimum 1A recommended for multiple servos). Connect the servo's three-wire connector to your control interface: the red wire to positive voltage, black wire to ground, and the white or yellow signal wire to your PWM output pin on your microcontroller, RC receiver, or servo controller. Verify that your control system generates standard servo pulse widths between 1000 and 2000 microseconds; a 1500-microsecond pulse corresponds to the center position (45 degrees), with shorter pulses rotating the shaft counterclockwise and longer pulses rotating clockwise. Mount the servo securely to your mechanical structure using the provided mounting holes, ensuring the output shaft can rotate freely through its full 90-degree range without mechanical obstruction.
For optimal performance, implement a servo control routine that gradually transitions between positions rather than commanding abrupt angular changes, reducing mechanical stress on the gear train and extending component lifespan. If your application requires continuous rotation or speeds exceeding the servo's native capabilities, consider implementing a feedback control loop using the servo's internal potentiometer signal or an external position sensor to achieve closed-loop precision. Always verify that your power supply can deliver peak current of 900mA without voltage sag, as inadequate current supply will cause sluggish response and potential signal instability. For applications involving sustained high-torque operation, monitor servo temperature during extended use; brief warm-up is normal, but excessive heat indicates overload conditions requiring mechanical load reduction or duty cycle adjustment.
Frequently Asked Questions
What is the difference between the HS-485HB and standard plastic-geared servos?
The HS-485HB features metal gears and dual ball bearings on the output shaft, whereas standard servos typically use plastic gears with sleeve bearings. Metal gears resist stripping under sustained load and maintain dimensional stability across temperature ranges, while ball bearings eliminate the radial play that develops in sleeve bearings after extended use. These upgrades result in superior torque capacity, longer operational lifespan, and more precise positioning repeatability, justifying the investment for professional and industrial applications where reliability is critical.
Can the HS-485HB be modified for continuous rotation?
Yes, the HS-485HB can be internally modified for continuous rotation by removing the mechanical stop pins and replacing the potentiometer feedback circuit with a fixed voltage divider. However, this modification voids the warranty and requires advanced soldering skills and understanding of servo electronics. For continuous rotation applications, we recommend purchasing dedicated continuous-rotation servo models or using a brushed DC motor with external control circuitry, which provides better performance and maintains manufacturer support.
What control signals does the HS-485HB accept?
The HS-485HB accepts standard PWM servo signals with pulse widths ranging from 1000 to 2000 microseconds at a refresh rate of 50Hz (20-millisecond period). A 1500-microsecond pulse commands the center position, 1000 microseconds commands full counterclockwise rotation, and 2000 microseconds commands full clockwise rotation. The servo is compatible with all microcontroller platforms (Arduino, Raspberry Pi, PIC, ARM), RC receivers, and dedicated servo controller boards that generate standard servo control signals.
How much current does the HS-485HB draw during operation?
The servo draws approximately 5-7mA when idle or holding a stationary position, and peak current reaches 900mA when the motor is actively driving under full load conditions. For systems controlling multiple servos, calculate total current capacity as: (number of servos × 900mA) plus a safety margin of 20-30%. For example, a 4-servo system requires a minimum 4A power supply. Using undersized power supplies causes voltage sag, resulting in sluggish servo response and potential signal instability.
What is the operating temperature range for the HS-485HB?
The Hitec HS-485HB is rated for operation between 0°C and 60°C ambient temperature. Extended operation above 50°C may reduce servo lifespan due to lubricant viscosity changes and component thermal stress. In high-temperature environments, ensure adequate ventilation around the servo and monitor temperature during operation. If the servo becomes too hot to touch, reduce load or duty cycle immediately to prevent internal component damage.
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 Tech Depot
- 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
Buy Hitec HS-485HB Deluxe HD Ball Bearing Standard Servo Online in India
Purchase the Hitec HS-485HB Deluxe HD Ball Bearing Standard Servo online at The Tech Depot, 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.