AndyMark EVO Shifter 4 RedLine (4in. Wheel Version)

AndyMarkSKU: RB-And-1868
Manufacturer #: EVO-4R-283-135-LH2

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Sale price £349.06

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Description

  • AndyMark EVO Shifter 4 RedLine (4in. Wheel Version)
  • Optimizes performance with 4-inch wheels
  • Features 2-speed, shift-on-the-fly gearbox
  • Enhances reliability with improved dog shifting
  • Accommodates up to four 775 motors
  • Includes aggressive weight reduction

The AndyMark EVO Shifter 4 RedLine (4in. Wheel Version) represents the latest advancement in shifting transmission gearboxes for competitive robotics. This two-speed, shift-on-the-fly gearbox is designed to accommodate up to four 775 class motors, such as the AndyMark RedLine Motor. It features an enhanced 4-tooth dog shifting mechanism, which provides increased strength and reliability over previous models. The gearbox is optimized specifically for driving 4-inch diameter wheels, ensuring efficient performance in competitive environments.

This version of the EVO Shifter is equipped with a pneumatic shift method, utilizing a spring-extended PHD pneumatic cylinder. This allows for seamless shifting even while the robot is accelerating, pushing, or decelerating. The gearbox is shipped assembled, though the motors are not pre-installed. Notably, the gearbox includes a 2 Stage EVO Shifter Long Hex Output Shaft, which is integral to its operation.

Significant improvements have been made in this model, including the use of AMPCO® 18 Bronze for the dog gear, which offers enhanced lubricity for smoother shifting. The shift block assembly has been reinforced with a larger bearing and steel housing, and the input stage now uses 32DP gears for an effective first stage reduction. Additionally, the gearbox features aggressive weight reduction and improved encoder options, making it a versatile choice for various robotic applications.

Note: It is crucial to use this gearbox configuration only with 4-inch wheels to prevent potential damage to the motors. For larger wheels, an external reduction device is recommended.

  • 1x US Digital encoder
  • 1x Pneumatic cylinder
  • Two-speed, shift-on-the-fly gearbox
  • Enhanced 4-tooth dog shifting method
  • Compatible with up to four 775 class motors
  • No servo shifting available
  • Optimized for 4" diameter wheels
  • Ratio A: 13.58:1 - 19.50 ft/s on 4" wheels
  • Ratio B: 28.33:1 - 9.35 ft/s on 4" wheels
  • Two-stage EVO Shifter with long hex output shaft
  • Eleven significant improvements over previous designs
  • Pneumatic shift method with spring-extended PHD pneumatic cylinder
  • Encoder ratio: 3:1
  • Shielded, flanged ball bearings
  • 1117 steel 32 DP gears with 20-degree pressure angle (first stage)
  • 4140 steel 20 DP gears with 14.5-degree pressure angle (second stage)
  • 1/4" thick aluminum side plates, pocketed
  • 4140 steel output shafts

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