Description
- AndyMark EVO Shifter am14u Family Hex Shaft, StageA 2 Stage – 22.67:1 Ratio, StageB 2 Stage – 04.77:1 Ratio
- Features two-speed shift-on-the-fly gearbox
- Utilizes improved 4-tooth dog shifting method
- Supports CIM or NEO motor inputs
- Allows independent high and low ratio selection
- Incorporates aggressive weight reduction features
The AndyMark EVO Shifter am14u Family Hex Shaft, StageA 2 Stage – 22.67:1 Ratio, StageB 2 Stage – 04.77:1 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 speeds. 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 for smoother shifting. The shift block assembly has been strengthened with a larger bearing and threaded steel housing. The input stage utilizes 32 DP gears and a 15-tooth pinion gear, achieving a high 85:15 first stage reduction. Users have the freedom to select independent high and low ratios, and the gearbox supports various encoder options, enhancing its adaptability.
The EVO Shifter employs a pneumatic shift method, utilizing a spring-extend pneumatic cylinder that allows shifting even during acceleration or deceleration. The gearbox is designed for easy assembly and disassembly, with cluster gears featuring identical characteristics on both sides. An optional third stage provides additional ratio choices, and the gearbox can be mounted to an AM14U family chassis or a 2″x1″ box tube frame. Aggressive weight reduction features have been integrated into the design, ensuring a lightweight yet durable construction.
Note: Ensure proper greasing with Red Tacky Grease for optimal operation and longevity. A break-in period of 30 minutes without grease is recommended to allow gear teeth to wear in smoothly.
View moreWhat’s Included
- 1x AndyMark EVO Shifter am14u Family Hex Shaft, StageA 2 Stage – 22.67:1 Ratio, StageB 2 Stage – 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
- 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 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
