ToFree Aviation Technology Co.,Ltd
588 Feitian Road, National Civil Aerospace Industry Base, Xi'an City, Shaanxi Pro., China
Digital Servo Motor

Digital Servo Motor

Both the new NXB8921 and NXB8925 feature highly efficient and powerful brushless motors, and updated firmware for optimized performance and efficiency, as well as a new robust all CNC Machined aluminum cases, and of course all metal gear trains for the ultimate in durability.
Add to all this a plethora of programmability to customize and fine tune each individual servo to its specific location on the model via JRs innovative XBus DMSS Serial Bus system, and well, the new NXB8921 and NXB8925 might just be JRs smartest Smart Servos❠of all..

Product Details


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More product parameters, please contact us online…


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Overview

JR - JRPSDS11 - DS11 Digital Flybarless Servo

This is the Digital Mini Servo for fly barless Swash system to perform best with JR 3axis Gyro "TAGS01" , This is high speed servo which corresponds to the Gyro signals instantly.

Features

  • High Speed

  • Aluminum Final Output Gear

  • With Ball Bearing(dual)

Specifications

  • Size Category: Minis and Micros

  • Type: Digital

  • Application: Cyclic servo for flybarless swash systems

  • Torque: 38.9 oz-in (2.8 kg-cm) @ 4.8V; 48.6 oz-in (3.5 kg-cm) @ 6.0V

  • Speed: 0.13 sec/60 deg @ 4.8V; 0.10 sec/60 deg @ 6.0V

  • Length: 1.30 in (33mm)

  • Width: 0.59 in (15mm)

  • Height: 1.04 in (26.5mm)

  • Weight: 0.95 oz (27 g)

  • Bushing Or Bearing: Bearing

  • Bearing: Dual

  • Voltage: 4.5 - 6.0V


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Overview

JR - JRPS188 - DS188 Digital Super High-Speed 6-Gram Servo

Excellent digital precision with blazing fast speed in a super sub-micro 6-gram servo.

Features

  • Low 6-gram weight perfect for a variety of indoor/parkflyer applications

  • Digital electronics for the ultimate in precision and accuracy

  • Fast transit time assures snappy responsiveness for great 3D flying

Specifications

  • Size Category: Minis and Micros

  • Type: Digital

  • Application: Slow and parkflyer aircraft, sailplanes, micro helis and other special applications

  • Torque: 12.1 oz-in @ 4.8V; 13.1 oz-in @ 6V

  • Speed: .08 sec/60° @ 4.8V; .06 sec/60° @ 6V

  • Length: 0.78 in

  • Width: 0.44 in

  • Height: 0.80 in

  • Weight: 6 grams

  • Bushing Or Bearing: Bushing

  • Motor Type: 3 pole cored

  • Connector Type: JR

  • Gear Type: Nylon


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Overview

JR - JRPS285MG - DS285MG Digital Hi-Speed Sub-Micro MG Servo

The 285MG High Speed Sub-Micro Servo - the popular T-REX servo available with metal gears for crash protection.

Features

  • Fast transit time for superb response

  • Employs metal gears for extreme strength

  • Zero dead band provides JR's legendary precision

  • High frequency digital electronics

  • High holding power provides a unique feel

Specifications

  • Size Category: Minis and Micros

  • Type: Digital

  • Torque: 17 oz-in @ 4.8V, 19 oz-in @ 6V

  • Speed: .18 sec/60 degrees @ 4.8V, .14 sec/60 degrees @ 6V

  • Length: 0.87 in

  • Width: 0.45 in

  • Height: 0.85 in

  • Weight: 12 grams, .42 oz

  • Bushing Or Bearing: Bushing

  • Motor Type: 3-pole ferrite

  • Gear Type: Metal

  • Application: Electric aerobatic planes, sailplanes, micro and mini helis, and other special applications


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Overview

JR - JRPS390 - DS390 Digital Precision Micro Metal Gear Servo

The DS390 digital precison micro metal gear servo offers class-leading holding torque, zero deadband and the legendary high resolution of JR® servos in a package that's ideal for high-performance sailplanes and electrics.

By re-engineering certain internal components, the JR brand has improved upon the precision of the previous generation DS388 servo to give the DS390 servo the performance advantage JR customers demand.

Features

  • Thin and lightweight

  • Ultra precision electronics

  • Class-leading torque and speed

  • Ideal for performance electrics, sailplanes and pylon models

  • Durable metal gear train

Specifications

  • Size Category: Minis and Micros

  • Type: Digital

  • Application: High-performance scale sailplanes, electrics and pylon models

  • Torque: 60 oz-in (4.3 kg-cm) @ 4.8V; 75 oz-in (5.4 kg-cm) @ 6.0V

  • Speed: 0.16 sec/60 deg @ 4.8V; 0.13 sec/60 deg @ 6.0V

  • Length: 1.18 in (30mm)

  • Width: 0.43 in (11mm)

  • Height: 1.14 in (29mm)

  • Weight: 0.78 oz (22 g)

  • Bushing Or Bearing: Bearing

  • Bearing: Dual

  • Gear Type: Metal

  • Voltage: 4.8V-6.0V


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Overview

JR - JRPSNXB8921 - NXB8921 Brushless High Torque XBus Servo

Ask any competition IMAC flyer or serious giant scale 3D enthusiast what their servo of choice is, and youll undoubtedly hear “JR of course”. This isnt by accident- JR servos like the legendary 8411, 8711, 8911, and recently introduced NX Series “Smart Servos have provided the perfect blend of brute strength and precision, with unmatched reliability for decades.

In keeping with this tradition, JR has just released their next servos that are destined to be the next legendary number in giant scale performance servos, the new NXB8921 and NXB8925 Brushless Smart Servos.

Both the new NXB8921 and NXB8925 feature highly efficient and powerful brushless motors, and updated firmware for optimized performance and efficiency, as well as a new robust all CNC Machined aluminum cases, and of course all metal gear trains for the ultimate in durability.

Add to all this a plethora of programmability to customize and fine tune each individual servo to its specific location on the model via JRs innovative XBus DMSS Serial Bus system, and well, the new NXB8921 and NXB8925 might just be JRs smartest “Smart Servos” of all..

Not using XBus- fear not. The new NXB8921 and NXB8925 also features JRs unique automatic output detection, so it can be used in standard configuration with either conventional (PWM) or XBus installations for ease and flexibility with virtually any brand of equipment.

Specifications

  • Torque: 363 (4.8V)/456 (6.0V)/562 (7.4V)

  • Speed: 0.19 (4.8V)/0.14 (6.0V)/0.13 (7.4V)

  • Dimensions (L/W/H): 1.55x0.82x1.59 in

  • Weight: 2.96 oz

  • Input Voltage: 4.8-8.5v

  • MPU: 32 Bit

  • Shaft Support: Dual Ball Bearing

  • Comparable to DS8911HV and NX8921

Parts/Options

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JR - JRPS188 - DS188 Digital Super High-Speed 6-Gram Servo

Overview

Excellent digital precision with blazing fast speed in a super sub-micro 6-gram servo.

Features

  • Low 6-gram weight perfect for a variety of indoor/parkflyer applications

  • Digital electronics for the ultimate in precision and accuracy

  • Fast transit time assures snappy responsiveness for great 3D flying

Specifications

  • Size Category: Minis and Micros

  • Type: Digital

  • Application: Slow and parkflyer aircraft, sailplanes, micro helis and other special applications

  • Torque: 12.1 oz-in @ 4.8V; 13.1 oz-in @ 6V

  • Speed: .08 sec/60° @ 4.8V; .06 sec/60° @ 6V

  • Length: 0.78 in

  • Width: 0.44 in

  • Height: 0.80 in

  • Weight: 6 grams

  • Bushing Or Bearing: Bushing

  • Motor Type: 3 pole cored

  • Connector Type: JR

  • Gear Type: Nylon


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Overview

JR - JRPS8900G - DS8900G Ultra Speed Digital Gyro Servo 4.8V

With its 48 oz/in of torque and blinding .05-second speed at 4.8V, the 8900G tail gyro servo is the world’s fastest. It’ll make any heli hold better.

Features

  • Blazing .05-second transit improves any gyro

  • Ultra-speed servo for instant tail control reaction

  • Aluminum heat sink center case to help keep motor cool and increase efficiency

  • Ultra Precision Nylon Gears

  • Perfect for 600-size and larger helis

  • JR's legendary digital holding power and resolution

  • High Frequency Response System

Specifications

  • Size Category: Standard

  • Type: Digital

  • Torque: 48 oz-in @ 4.8V

  • Speed: .05 sec/60 deg @ 4.8V

  • Length: 1.59 in

  • Width: 0.827 in

  • Height: 1.57 in

  • Weight: 2.1 oz

  • Motor Type: Coreless

  • Gear Type: Nylon

  • Application: Heli Tail Rotor Gyro Servo

  • Voltage: 4.8V only

  • Deadband: Zero deadband for ultra precision and performance


More product parameters, please contact us online...

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