Description
- AndyMark EVO Shifter Short Hex Shaft, StageA 3 Stage – 18.71:1 Ratio 1.14:1, StageB 3 Stage – 08.63:1 Ratio 1.14:1
- Advances in shifting technology
- Supports two CIM or NEO motors
- Integrates improved dog shifting
- Features strong shift block assembly
- Enables independent ratio selection
The AndyMark EVO Shifter Short Hex Shaft, StageA 3 Stage – 18.71:1 Ratio 1.14:1, StageB 3 Stage – 08.63:1 Ratio 1.14:1 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 seamless transitions between speeds. 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 to accommodate two motors, and it is shipped assembled without motors installed.
The EVO Shifter introduces several improvements over previous models, including a robust 1/8″ diameter shoulder screw and a dog gear made from AMPCO 18 Bronze, which provides added lubricity for smoother shifting. 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, enabling a high first stage reduction. Users have the ability to 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 and the CTRE SRX mag encoder.
The EVO Shifter employs a pneumatic shift method, powered by a spring-extend pneumatic cylinder, allowing for shifting while a robot is in motion. The gearbox is designed with aggressive weight reduction features, and it can be mounted to an AM14U family chassis or a 2″x1″ box tube frame. The gearbox requires grease for optimal operation and longevity, with a recommended break-in period before applying grease to the spur gears. The encoder ratio for two-stage versions is 3:1, ensuring precise control and performance.
View moreWhat’s Included
- 1x AndyMark EVO Shifter Short Hex Shaft, StageA 3 Stage – 18.71:1 Ratio 1.14:1, StageB 3 Stage – 08.63:1 Ratio 1.14:1
- 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″ 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
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 on 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
