Description
- AndyMark EVO Shifter am14u Family Shaft, StageA 3 Stage – 12.41:1 Ratio 1.14:1, StageB 3 Stage – 06.86:1 Ratio 1.14:1
- Enhances gear shifting with 4-tooth dog method
- Supports two CIM or NEO motors
- Allows easy assembly with identical cluster gears
- Offers optional third stage for added flexibility
- Includes pneumatic shift method for smooth transitions
The AndyMark EVO Shifter am14u Family Shaft, StageA 3 Stage – 12.41:1 Ratio 1.14:1, StageB 3 Stage – 06.86:1 Ratio 1.14:1 represents a significant advancement in shifting transmission gearboxes. This two-speed, shift-on-the-fly gearbox incorporates a refined 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 output shaft selection. The gearbox is delivered assembled, though motors are not pre-installed.
The EVO Shifter introduces several enhancements over previous models, including a dog gear with four dogs on each face for increased durability. The use of AMPCO 18 Bronze for the dog gear material provides added lubricity, ensuring smooth operation. A robust shift block assembly with a larger bearing and threaded steel housing further enhances the gearbox’s strength. The input stage employs 32 DP gears and a 15-tooth pinion gear, facilitating a high first stage reduction of 85:15. Users can independently select high and low ratios and swap them as needed, providing greater control over performance.
The gearbox features aggressive weight reduction techniques and is designed for easy assembly, with cluster gears that have identical features on both sides. An optional third stage offers an additional C ratio choice. The pneumatic shift method, powered by a spring-extend pneumatic cylinder, allows for shifting even during acceleration or deceleration. The gearbox is compatible with various encoder options, including the US Digital E4T, and is designed to be mounted on an AM14U family chassis or a 2″x1″ box tube frame.
Note: Ensure proper greasing and break-in procedures are followed for optimal performance and longevity.
View moreWhat’s Included
- 1x AndyMark EVO Shifter am14u Family Shaft, StageA 3 Stage – 12.41:1 Ratio 1.14:1, StageB 3 Stage – 06.86:1 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
- Improved four-tooth dog shifting method
- Motor input: two CIM or NEO motors
- Configurable with two or three interior 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 inch 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
- Swap ratios (A to B to A) as needed
- More encoder options available
- Aggressive weight reduction features
- Cluster gears with the same 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
- Extend stroke: 4 lbs, retract stroke: 15.7 lbs
- Encoder ratio: 3:1 on two-stage versions
Unconditional Satisfaction Guarantee
