Description
- AndyMark EVO Shifter Short Hex Shaft, StageA 3 – 12.41:1 Ratio 1.14:1, StageB 3 – 08.63:1 Ratio 1.14:1
- Advances two-speed, shift-on-the-fly gearbox
- Incorporates improved 4-tooth dog shifting
- Supports two CIM or NEO motors
- Employs robust AMPCO 18 Bronze materials
- Reduces weight with uniform cluster gears
The AndyMark EVO Shifter Short Hex Shaft, StageA 3 – 12.41:1 Ratio 1.14:1, StageB 3 – 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 method, 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 performance. The gearbox is shipped assembled, though motors are not included.
The design improvements include a robust 1/8″ diameter shoulder screw and a dog gear made from AMPCO 18 Bronze, which provides added lubricity and strength. The shift block assembly is reinforced with a larger bearing and threaded steel housing, enhancing durability. The input stage features 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, 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 reliable operation even under dynamic conditions. The gearbox is designed with aggressive weight reduction features and allows for easy assembly due to the uniform features of the cluster gears. 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 Hex Shaft, StageA 3 – 12.41:1 Ratio 1.14:1, StageB 3 – 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 (am-2768)
- 1x E4T Encoder (am-3132)
Dimensions
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
- Various 1/2 inch output shaft options
- Plates designed for mounting two motors
- Shipped assembled, motors not included
- Dog gear with four 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
