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Servos

Get To Know "JR SERVO DIVISION"

STANDARD SERVOS:

A. HIGH VOLTAGE CYCLIC SERVOS:

 

DS8921HV in Asia (DS8911HV America)

     

Overview

The DS8921 HV or DS8911 HV servo (in Europe & American Market) is the perfect option for pilots who want the outstanding performance of JR’s legendary servos without the high cost.  The 8921 provides impressive torque for giant-scale applications.

Key Features

* Designed for high voltage native 2S Li-Po operation

* Digital precision for increased accuracy and performance

* Provides high torque for large aircraft in a standard-size servo package

* Metal gears provide longer life cycle and a higher level of durability

Specifications

Size Category: Standard

Type: Digital

Application: Giant-Scale aircraft

Torque: 13.32kg (2S Li-Po)

Speed: 12 sec/60° (2S Li-Po battery)

Length: 1.58 in

Width: 0.82 in

Height: 1.56 in

Weight: 70.9g

Bushing Or Bearing: Bearing

Bearing: Dual

Motor Type: Coreless

Connector Type: JR

Gear Type: Metal

Gear Material: Super Steel

Voltage: 7.4V (2S Li-Po battery)

Deadband: Less than .001ms

B. HighVoltage & Ultra Speed Cyclic Servo

1. DS8925 HV in Asia (DS8917HV in USA)

Overview

JR’s DS8917HV servo in USA and  DS8925HV in Asia and European Market  is the perfect choice for heli pilots who want high-speed servos and JR’s reputation for incredible servo performance.  The 8925HV servo provides pilots with everything they need- high speed, the use of li-pos without a regulator!

Key Features

  • Designed for high-voltage native 2s li-po operation
  • High speed provides heli pilots with the responsiveness they need
  • Standard size- fits in all helis 50 size and larger
  • Metal gears provide increased lifecycle and added durability
  • Digital precision provides great accuracy and performance

Specifications

Size Category: Standard
Type: Digital
Torque: 17.8kg.cm
Speed: 06 sec°
Length: 1.58 in
Width: 0.82 in
Height: 1.56 in
Weight: 70.9
Bushing Or Bearing: Bearing
Bearing: Dual
Motor Type: Coreless
Connector Type: JR
Gear Type: Metal
Gear Material: SuperSteel

Voltage: 7.4V (2S Li-Po battery)
Deadband: Less than

Application: for 50size and larger helis, cyclic

 

2. JR DS8417 ULTRA SPEED SERVO

JR’s DS8417 Ultra Speed Digital Servo is designed for applications where speed and precision are paramount. At a .10 second 60° transit time, the DS8417 is JR’s fastest-ever servo. And at 80 oz./in. of torque, the DS8417 has plenty of power, even for helicopter tail rotors, 1/8 scale buggies, or 1.20-size airplanes.

The DS8417 reacts to gyro inputs up to 5 times faster than conventional servos. And with it’s ultrafast .10 sec. speed, the DS8417 offers superior tail holding power when used in helicopters.

Key Features

  • 250 Hz pulse rate (vs.50 Hz for standard servos)
  • The ideal tail rotor servo.
  • Standard size case that fits nearly anywhere.
  • The highly efficient digital amplifier has only a slightly higher current drain (approximately 8% more than a conventional servo under a given load) despite its radically increased performance.
  • Hardened steel & brass gear train that’s virtually unstrippable.
  • Rock solid holding power.

For applications where high speed, quick response and accuracy are key, JR’s Digital DS8417 servo sets the standard for the next Millennium.

Size mm: 34.5×19x39
Weight: 60g
Torque: 5.9 kg.cm torque
Speed: 0.10
Gears: Metal
Ballrace: 2

 

C. BRUSLESS CYCLIC SERVO

MP80S Brushless Cyclic Servo

Overview

 

JR MP80S Brushless Servo

Designed for Aerobatic and Large Scale Aircraft the high speed MP80S is part of JR’s range of Brushless Digital Servos. The MP80S can only be used at 4.8v.

 

Specificatios:

Torque: 12.0 kg/cm

Speed: .09 sec/60deg

Gear type: Metal

Case type: Plastic with anodized heat sink

Amplifier: Digital

Size: 36.5 x 21 x 40.5

Weight:       69g

Operating Voltage: 4.8V - 6.0V

Motor Type: Brushless

Manufacturer: JR Propo

Applications:    50-90 size

 

JR MP80S Brushless Servo

Designed for Aerobatic and Large Scale Aircraft the high speed MP80S is part of JR’s range of Brushless Digital Servos. The MP80S can only be used at 4.8v.

 

 

D. DIGITAL STANDARD CYCLIC SERVOS

 

JR ES539


JR ES 539 standard ballrace servo, 4.8 kg.cm

  • Weight: 38g
  • Torque: 4.8 kg.cm torque
  • Speed 0.23
  • Gears Plastic
  • Ballrace 1

E. STANDARD TAIL ROTOR SERVOS

1. JR DS 8900G Ultra Speed Digital Gyro Servo

JR DS 8900G Ultra Speed Digital Gyro Servo 4.8V
This High End Digital Servo designed for tail rotor use with all 30-90 powered helicopters. This is the ideal servo for use with CSM/JR Heading Lock Gyros. With 3.5kg of Torque & 0.05s Speed it is one of the fastest servos currently on the market.

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
  • Size mm: 35×21x40.5
  • Weight: 59g
  • Torque: 3.5 kg.cm torque
  • Speed 0.05
  • Ballrace 2

2. MP80G Brush-less Tail Servo

Overview

JR MP80G Brushless Servo with Heat Sink Case for Gyro

Completely new from JR, in response to Futaba’s very successful BLS brushless servo line- is the new MP servo line. These include the MP70, MP80G, and MP80T.  The MP80G is a brushless equivalent to the 8900G brushed gyro tail servo. Futaba no longer has the monopoly on the brushless tail servo market and with a 0.05sec response time, it certainly will be a contender.

Specifications:

 

Torque:  3.5 kg/cm

Speed: 0.05 Sec/60 Degrees

Dimension: 36.5 x 21 x 40.5 mm

Weight: 64 g

Wire Length: 300 mm

Normal-rated Voltage:4.8 v

Application: 50-90 size

 

JR DIGITAL SUB-MICRO SERVOS:

JR DS 318 Digital Super Sub Micro Servo
This 6g wonder is ideal where weight is critical. Low 6-gram weight perfect for F3P applications. With digital electronics for the ultimate in precision and accuracy. Fast transit time assures snappy responsiveness for great 3D flying.

  • Size mm: 19.8 x 11.2 x 20.9
  • Weight: 6g
  • Torque: 0.7 kg.cm torque
  • Speed: 0.08