AndyMark EVO Shifter am14u Family Hex Shaft, StageA 2 Stage - 07.56:1 Ratio, StageB 2 Stage - 22.67:1 Ratio

AndyMarkSKU: RB-And-1736
Manufacturer #: EVO-2-075-226-UH2

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Sale price ¥64,219

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Description

  • AndyMark EVO Shifter am14u Family Hex Shaft, StageA 2 Stage - 07.56:1 Ratio, StageB 2 Stage - 22.67:1 Ratio
  • Incorporates smooth 4-tooth dog shifting method
  • Supports two CIM or NEO motors
  • Delivered fully assembled, motors not included
  • Features robust AMPCO® 18 Bronze dog gear
  • Mounts to AM14U or 2"x1" box tube frame

The AndyMark EVO Shifter am14u Family Hex Shaft, StageA 2 Stage - 07.56:1 Ratio, StageB 2 Stage - 22.67:1 Ratio represents a significant advancement in shifting transmission gearboxes. This two-speed, shift-on-the-fly gearbox incorporates an enhanced 4-tooth dog shifting method, allowing for smooth and efficient transitions between gears. It is compatible with two CIM or NEO motors and can be configured with either two or three interior stages, offering flexibility in output shaft selection. The gearbox is delivered assembled, though motors are not pre-installed.

Significant improvements have been made over previous models, including a robust 1/8" diameter shoulder screw and the use of AMPCO® 18 Bronze for the dog gear, which enhances strength and lubricity. The gearbox features a super-strong shift block assembly with a larger bearing and threaded steel housing. The input stage utilizes 32 DP gears and a 15-tooth pinion gear, achieving a high 85:15 first stage reduction. Users can independently select high and low ratios, and the gearbox supports various encoder options, including the US Digital E4T.

The EVO Shifter employs a pneumatic shift method, powered by a spring-extend pneumatic cylinder, allowing for gear shifts even during acceleration or deceleration. The gearbox is designed with aggressive weight reduction features and can be mounted to an AM14U family chassis or a 2"x1" box tube frame. The two-stage version weighs between 2.9 to 3.2 pounds, while the three-stage version weighs 3.5 pounds.

Note: Proper greasing is essential for optimal operation and longevity of the gearbox. It is recommended to run the gearbox for 30 minutes without grease for initial wear-in before applying grease to the spur gears periodically.

  • 1x AndyMark EVO Shifter am14u Family Hex Shaft, StageA 2 Stage - 07.56:1 Ratio, StageB 2 Stage - 22.67:1 Ratio
  • Shielded, flanged ball bearings
  • 1117 steel 32 DP gears, with 20-degree pressure angle (1st stage)
  • 4140 steel 20 DP gears, with 14.5-degree pressure angle (2nd and 3rd stage)
  • 1/4" thick aluminum side plates, pocketed
  • US Digital encoder and pneumatic cylinder included
  • 4140 steel output shafts
  • 1x Red Tacky Grease, 14.2 gram
  • Various spacers, bearings, and hardware for assembly
  • Two-speed, shift-on-the-fly gearbox
  • Enhanced 4-tooth dog shifting method
  • Motor input: two CIM or NEO motors
  • Configurable with two or three internal stages
  • Selection of various 1/2 inch output shafts
  • Plates designed for mounting two motors
  • Shipped assembled, without motors installed
  • Dog gear with four dogs on each face for increased strength
  • Robust 1/8 inch diameter shoulder screw
  • Dog gear material: AMPCO® 18 Bronze
  • Super-strong shift block assembly with larger bearing and threaded steel housing
  • Input stage uses 32 DP gears and a 15-tooth pinion gear
  • High 85:15 first stage reduction
  • Independent high and low ratio selection
  • More encoder options available
  • Aggressive weight reduction features
  • Cluster gears with identical features surrounding the bore on both sides
  • Optional third stage provides additional C ratio choice of 1.14 or 2:1
  • Can be mounted to an AM14U family chassis or a 2"x1" box tube frame
  • Pneumatic shift method with spring-extend pneumatic cylinder
  • Extend stroke (spring extend): 4 lbs
  • Retract stroke (air actuated at 40 PSI): 15.7 lbs
  • Encoder ratio: 3:1 on two-stage versions

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