Description
- AndyMark EVO Shifter Short Keyed Shaft, StageA 2 – 06.00:1 Ratio, StageB 2 – 04.77:1 Ratio
- Enhances gear shifting with 4-tooth dog mechanism
- Supports CIM or NEO motor configurations
- Incorporates AMPCO 18 Bronze for durability
- Utilizes spring-extend pneumatic cylinder
- Offers aggressive weight reduction design
The AndyMark EVO Shifter Short Keyed Shaft, StageA 2 – 06.00:1 Ratio, StageB 2 – 04.77:1 Ratio represents a significant advancement in shifting transmission gearboxes. This two-speed, shift-on-the-fly gearbox incorporates an enhanced 4-tooth dog shifting mechanism, 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 designed with mounting plates for two motors and 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 added lubricity and strength. The gearbox features a robust shift block assembly with a larger bearing and threaded steel housing, enhancing durability. The input stage utilizes 32 DP gears and a 15-tooth pinion gear, allowing for a high first stage reduction. Users have the freedom to select their high and low ratios independently, and the gearbox supports various encoder options, including the US Digital E4T.
The EVO Shifter employs a pneumatic shift method, utilizing a spring-extend pneumatic cylinder for seamless shifting even under acceleration or deceleration. The gearbox is designed for aggressive weight reduction, with machined gears and plates, and can be mounted to an AM14U family chassis or a 2″x1″ box tube frame. It is essential to apply grease periodically for optimal operation and longevity, though the AMPCO bronze dog gear does not require greasing.
Note: When using a NEO motor, a 3-ton arbor press is required to install the pinion due to the intended interference fit.
View moreWhat’s Included
- 1x AndyMark EVO Shifter Short Keyed Shaft, StageA 2 – 06.00:1 Ratio, StageB 2 – 04.77:1 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
- 4140 steel output shafts
- 1x Red Tacky Grease, 14.2 gram
- 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
- Pneumatic shift method with spring-extend pneumatic cylinder
- Encoder ratio: 3:1 for two-stage versions
- Aggressive weight reduction features
- Additional encoder options available
- Can be mounted to an AM14U family chassis or a 2″x1″ box tube frame
Unconditional Satisfaction Guarantee
