Description
- AndyMark EVO Shifter am14u Family Hex Shaft, StageA 3 Stage – 08.63:1 Ratio 1.14:1, StageB 3 Stage – 12.41:1 Ratio 1.14:1
- Advances shifting with 4-tooth dog mechanism
- Offers flexibility with two or three stages
- Allows independent high and low ratio selection
- Features AMPCO 18 Bronze for smooth shifts
- Utilizes pneumatic cylinder for efficient shifts
The AndyMark EVO Shifter am14u Family Hex Shaft, StageA 3 Stage – 08.63:1 Ratio 1.14:1, StageB 3 Stage – 12.41:1 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 smooth and efficient 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.
Several improvements distinguish this model from previous iterations. The dog gear now features four dogs on each face, enhancing strength and durability. The use of AMPCO 18 Bronze for the dog gear material provides added lubricity, facilitating smoother shifts. A robust shift block assembly with a larger bearing and threaded steel housing is included, further enhancing the gearbox’s reliability. The input stage employs 32 DP gears and a 15-tooth pinion gear, achieving a high first stage reduction of 85:15. Users can independently select high and low ratios, allowing for customizable performance.
The gearbox also features aggressive weight reduction measures and is designed for easy assembly and disassembly, with cluster gears that have identical features on both sides. An optional third stage offers an additional C ratio choice. The EVO Shifter utilizes a pneumatic shift method, powered by a spring-extend pneumatic cylinder, enabling shifts even during acceleration or deceleration. The gearbox’s weight ranges from 2.9 to 3.5 pounds, depending on the configuration.
Note: Ensure proper greasing and break-in procedures are followed for optimal performance and longevity of the gearbox.
View moreWhat’s Included
- 1x AndyMark EVO Shifter am14u Family Hex Shaft, StageA 3 Stage – 08.63:1 Ratio 1.14:1, StageB 3 Stage – 12.41:1 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
- 4140 steel output shafts
- Individual hardware within two-stage assembly (excluding gears from ratio A and B)
- 1x Red Tacky Grease, 14.2 gram
- 1x Encoder Mount Pad
- 1x EVO Shifter Shift Block Assembly
- 1x E4T Encoder
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
- Pneumatic shift method with spring-extend pneumatic cylinder
- Encoder ratio: 3:1 on two-stage versions
Unconditional Satisfaction Guarantee
