AndyMark EVO Shifter Short Keyed Shaft, StageA 2 Stage - 16.37:1 Ratio, StageB 2 Stage - 22.67:1 Ratio

• AndyMark EVO Shifter Short Keyed Shaft, StageA 2 Stage - 16.37:1 Ratio, StageB 2 Stage - 22.67:1 Ratio
• Features a 4-tooth dog shifting method
• Crafted with lightweight design
• Employs a pneumatic shift method
• Includes US Digital encoder
• Allows customizable transmission settings

The AndyMark EVO Shifter Short Keyed Shaft, StageA 2 Stage - 16.37:1 Ratio, StageB 2 Stage - 22.67:1 Ratio represents a significant advancement in shifting transmission gearboxes. This two-speed, shift-on-the-fly gearbox is designed to accommodate two CIM or NEO motors, offering flexibility in motor input. The gearbox is shipped assembled, though motors are not pre-installed. It features a robust design with a 4-tooth dog shifting method, enhancing strength and durability. The dog gear is crafted from AMPCO® 18 Bronze, providing smooth shifting due to its lubricity properties. A new shift block assembly with a larger bearing and threaded steel housing further enhances its robustness.

The gearbox allows for independent selection of high and low ratios, providing users with the ability to customize their transmission settings. It supports two or three interior stages, with an optional third stage offering additional ratio choices. The design incorporates aggressive weight reduction features, ensuring a lightweight yet sturdy construction. The gearbox can be mounted to an AM14U family chassis or a 2"x1" box tube frame using existing mounting plate holes.

The EVO Shifter employs a pneumatic shift method, utilizing a spring-extend pneumatic cylinder for shifting. This allows for seamless shifting even during acceleration, pushing, or deceleration. The gearbox is designed to continue operating in Ratio A if air pressure is lost, ensuring uninterrupted performance. Proper greasing is essential for optimal operation and longevity, with a recommended break-in period before applying grease. 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 safe installation.