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

High Torque Servo

1. High-voltage (direct 2S Li-Po/Li-Fe battery) compatible
2. Lower price point, but higher performance value
3. Longer-lasting plastic composite gear material
4. Ball bearing-supported output shaft

Product Details


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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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Overview

JR - JRPS821HV - DS821HV HV Digital Sport High-Torque Servo

The JR® 821HV servo is one of the latest updates for the JR brand. Based on the original and successful DS821 servo, it has the new high-voltage motor allowing it to be used unregulated when using 2-cell Li-Po power sources. The DS821HV servo is a powerful, accurate sport digital servo recommended for RC airplane applications up to 1.20-size. For helicopters, the DS821HV servo operates best with 30-size glow models and up to 500-size electric.

Features

  • High-voltage (direct 2S Li-Po/Li-Fe battery) compatible

  • Lower price point, but higher performance value

  • Longer-lasting plastic composite gear material

  • Ball bearing-supported output shaft

Specifications

  • Size Category: Standard

  • Type: Digital

  • Application: Airplanes up to 1.20 size, 30-size glow, 500-size electric helis

  • Torque: 88 oz-in @ 7.4V

  • Speed: 0.15 sec/60-deg @ 7.4V

  • Length: 1.50 in

  • Width: .74 in

  • Height: 1.47 in

  • Weight: 1.5 oz

  • Bushing Or Bearing: Bearing

  • Bearing: Single

  • Motor Type: 3-pole ferrite

  • Connector Type: JR®

  • Gear Material: Nylon composite (note - not compatible with threadlock liquids)

  • Voltage: High-voltage (direct 2S Li-Po/Li-Fe battery) compatible, 6-8.5V

Parts/Options

JR - JRPS821HV - DS821HV HV Digital Sport High-Torque Servo

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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.

If youre looking to take the performance of your model to unprecedented heights, take a look at the new NXB8921 and NXB8925 servos from JR and feel the difference these new JR NX Smart Servos can provide.

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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