AndyMark EVO Shifter Short Keyed Shaft, StageA 2 - 22.67:1 Ratio, StageB 2 - 07.56:1 Ratio

AndyMarkSKU: RB-And-1831
Manufacturer #: EVO-2-226-075-SK2

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Sale price ¥64,219

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Description

  • AndyMark EVO Shifter Short Keyed Shaft, StageA 2 - 22.67:1 Ratio, StageB 2 - 07.56:1 Ratio
  • Features smooth 4-tooth dog shifting
  • Includes US Digital encoder
  • Supports two or three interior stages
  • Utilizes pneumatic shift method
  • Reinforced with AMPCO® 18 Bronze

The AndyMark EVO Shifter Short Keyed Shaft, StageA 2 - 22.67:1 Ratio, StageB 2 - 07.56:1 Ratio represents a significant advancement in shifting transmission gearboxes. This two-speed, shift-on-the-fly gearbox is designed with an improved 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 performance. The gearbox is shipped assembled, though motors are not installed.

Significant improvements have been made over previous models, including the use of AMPCO® 18 Bronze for the dog gear, which provides enhanced strength and lubricity. The shift block assembly has been reinforced with a larger bearing and threaded steel housing, contributing to the gearbox's robustness. The input stage features 32 DP gears and a 15-tooth pinion gear, facilitating a high first stage reduction. Users have the ability to independently select high and low ratios, providing greater customization.

The gearbox incorporates a pneumatic shift method, utilizing a spring-extend pneumatic cylinder for shifting. This allows for gear changes even during acceleration or deceleration. The gearbox is designed to be mounted on an AM14U family chassis or a 2"x1" box tube frame, using existing mounting plate holes. Weight ranges from 2.9 to 3.2 pounds for the two-stage version and 3.5 pounds for the three-stage version, excluding motors.

For optimal performance, it is recommended to run the gearbox for 30 minutes without grease to allow the gear teeth to wear in, followed by periodic application of Red Tacky Grease to the spur gears. The gearbox includes a US Digital encoder and a pneumatic cylinder, enhancing its functionality and ease of use.

Note: Ensure proper installation of pinion gears, especially when using a NEO motor, as a 3-ton arbor press is required due to the interference fit. Follow the NEO Press Fit Pinion Guide for safety and optimal performance.

  • 1x Shielded, flanged ball bearing
  • 1x US Digital encoder
  • 1x Pneumatic cylinder
  • 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
  • Compatible with 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
  • Pneumatic shift method with spring-extend pneumatic cylinder
  • Encoder ratio for 2-stage versions: 3:1
  • 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 inch thick aluminum side plates, pocketed
  • US Digital encoder and pneumatic cylinder included
  • 4140 steel output shafts

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