Description
- AndyMark EVO Shifter am14u Family Hex Shaft, StageA 2 Stage – 04.77:1 Ratio, StageB 2 Stage – 07.56:1 Ratio
- Features two-speed, shift-on-the-fly gearbox
- Incorporates improved 4-tooth dog shifting
- Compatible with CIM or NEO motors
- Includes robust AMPCO 18 Bronze dog gear
- Permits easy assembly with cluster gears
The AndyMark EVO Shifter am14u Family Hex Shaft, StageA 2 Stage – 04.77:1 Ratio, StageB 2 Stage – 07.56:1 Ratio represents a significant advancement in shifting transmission gearboxes. This two-speed, shift-on-the-fly gearbox is designed with an improved 4-tooth dog shifting method, allowing for seamless transitions between gears. It accommodates motor inputs from 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 installed.
Significant enhancements have been incorporated into the EVO Shifter, including 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. 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, and the gearbox 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 gear shifts even during acceleration or deceleration. The gearbox is designed for easy assembly and disassembly, with cluster gears featuring identical characteristics on both sides. It can be mounted to an AM14U family chassis or a 2″x1″ box tube frame. Aggressive weight reduction features have been integrated into the gears and plates, ensuring a lightweight yet durable construction.
Note: Proper greasing and a break-in period are recommended for optimal performance and longevity of the gearbox. Ensure to follow the specified procedures for installing pinion gears, especially when using NEO motors, to maintain safety and functionality.
View moreWhat’s Included
- 1x AndyMark EVO Shifter am14u Family Hex Shaft, StageA 2 Stage – 04.77:1 Ratio, StageB 2 Stage – 07.56:1 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
- Shipped assembled without motors installed
- Dog gear with four dogs on each face for increased strength
- Robust 1/8″ diameter shoulder screw
- Dog gear material: AMPCO 18 Bronze
- 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
- Can be mounted to an AM14U family chassis or a 2″x1″ box tube frame
- Pneumatic shift method with spring-extend pneumatic cylinder
- Included 15-tooth 32DP pinion gear
- Recommended greasing and break-in procedures
- Encoder ratio: 3:1 on two-stage versions
Unconditional Satisfaction Guarantee
