Description
- AndyMark EVO Shifter Short Keyed Shaft, StageA 2 Stage – 06.00:1 Ratio, StageB 2 Stage – 22.67:1 Ratio
- Incorporates seamless gear transitions
- Compatible with CIM or NEO motors
- Features robust AMPCO 18 Bronze
- Offers flexible ratio configurations
- Employs pneumatic shift method
The AndyMark EVO Shifter Short Keyed Shaft, StageA 2 Stage – 06.00:1 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 a refined 4-tooth dog shifting mechanism, allowing for seamless 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.
Notable improvements in this model include a robust 1/8″ diameter shoulder screw and a dog gear crafted from AMPCO 18 Bronze, which enhances strength and lubricity. The shift block assembly has been fortified with a larger bearing and threaded steel housing. The input stage utilizes 32 DP gears and a 15-tooth pinion gear, facilitating a high 85:15 first stage reduction. Users can independently select high and low ratios, with the option to swap ratios as needed. The gearbox also supports various encoder options, including the US Digital E4T.
The EVO Shifter employs a pneumatic shift method, powered by a spring-extend pneumatic cylinder, enabling shifts during acceleration, pushing, or deceleration. The gearbox features aggressive weight reduction, with machined gears and plates, and is designed for easy assembly and disassembly. It can be mounted to an AM14U family chassis or a 2″x1″ box tube frame using existing mounting plate holes.
Note: Ensure proper greasing and break-in procedures are followed for optimal performance and longevity.
View moreWhat’s Included
- 1x AndyMark EVO Shifter Short Keyed Shaft, StageA 2 Stage – 06.00:1 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 (am-2768)
- Various spacers, bearings, and hardware for assembly
Specifications
- 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
- Shipped assembled without motors installed
- Dog gear with 4 dogs on each face for increased strength
- Robust 1/8″ diameter shoulder screw
- Dog gear material: AMPCO 18 Bronze for added lubricity
- 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 on both sides for easy assembly
- Optional third stage provides additional C ratio choice of 1.14 or 2:1
- Pneumatic shift method with spring-extend pneumatic cylinder
- Encoder ratio: 3:1 on two-stage versions
Unconditional Satisfaction Guarantee
