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Novak

Novak Crawler 21.5 Brushless Motor

Not a regular stock item in our retail stores. Can be special ordered.

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 INFORMATION
HP ITEM NUMBER:
551530
DESCRIPTION:
Novak Crawler 21.5 Brushless Motor
MFR. NUMBER:
3420

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Novak Crawler 21.5 Brushless Motor - Item No. 551530

MORE INFORMATION   ACCESSORY ITEMS

 

Novak Crawler 21.5 Brushless Motor

Novak Crawler 21.5 Brushless Motor

Though Novak's 21.5 Brushless Crawler has many of the same great features as the updated #3419 Brushless Crawler 18.5 Sintered Motor, it has one key difference: It is even slower. With its lower-speed driveability and torque, the Crawler 21.5 Brushless Motor is equipped to tackle the harshest environments.

Features

The specially-designed Crawler motors scale over other brushed motors because of their massive start up and low-speed torque, all without sacrificing power or control. This eliminates the need to use 3-cell Li-Po packs, required by out-runner motors, which adds unnecessary weight to the rig. Novak's lightweight brushless system can tackle the most challenging terrain on 2-cell Li-Po packs.

Both Crawler motors include the same high-performance sintered rotor that Novak’s Velociti-series motors currently use. The rotor is ideal for use with any and all applications, and provides the following benefits:
  • Significantly increased magnetic strength for improved throttle feel
  • Improved, stronger motor braking power
  • Improved performance in higher temperature conditions
  • Improved motor acceleration and power
  • Higher efficiency
  • Lower current draw
  • Nickel-plated for a long lasting, smooth, clean finish

  • Additional features:
  • Sensor-based commutation for precise rotor position control
  • High-performance sintered rotor for stronger motor braking power and improved performance in higher temperature conditions
  • Oversized front bearing for extra durability and extended life
  • Ribbed aluminum end bells to reduce weight
  • Solder tab system for flexible soldering options


  • Specifications:
  • Number of Turns: 18.5 (#3419), 21.5 (#3420)
  • Design: Sensor-based
  • Input Voltage: 4-7 cells (1.2V/cell) or 2S Li-Po cells
  • Watts: 119 (#3419),85 (#3420)
  • KV (unloaded) 2,700 (#3419),1,800 (#3420) RPM/Volt
  • Motor Size: 2.08”L x 1.41”D (52.8 x 35.8mm)
  • Shaft Diameter: 0.125”; 3.2 mm; (accepts all existing pinion gears)
  • Motor Weight: 6.61 oz. (187 grams)
  • Bearing: Oversized (1/2” x 3/16”) Front; Standard Rear (3/8” x 1/8”)
  • Magnet: Sintered Neodymium (one-piece, multi-pole cylindrical high-strength)
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    On Sale $87.99    Now $79.27
    INTERNET ONLY
    On Order


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    More Information About the Crawler 21.5 Brushless Motor
    Specifically designed for R/C vehicles that require precise movement control

    Sensor-based technology for excellent low-speed driveability

    High-strength Sintered rotor for unmatched performance

    Oversized Front Bearing for extra durability and extended life

    Aluminum ribbed end bells for additional cooling

    Direct-Solder Wiring Tabs for flexible soldering options

    User-replaceable rotor (#5908), and user-replaceable front end bell/bearing, and rear bearing (#5919)

    Minimal Maintenance

    No cogging

    Designed and dyno-tested by Novak in Irvine, Calif.

    The Crawler 21.5 Brushless Motor is specifically designed to work with Novak’s brushless crawler speed controls, including the new Goat Crawler Brushless/Brush ESC (#3219) and the original Novak Crawler Brushless ESC (in system #3018). The Crawler 18.5 Sintered Brushless Motor and the Crawler 21.5 Brushless Motor are designed, hand-wound and dyno-tested by Novak experts.


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