Description
- AndyMark EVO Shifter am14u Family Shaft, StageA 3 Stage – 32.74:1 Ratio 2:1, StageB 3 Stage – 15.11:1 Ratio 2:1
- Offers two-speed, shift-on-the-fly gearbox
- Includes robust AMPCO 18 Bronze dog gear
- Ensures durable shift block with larger bearing
- Features flexible motor and stage configurations
- Utilizes pneumatic shift with reliable performance
The AndyMark EVO Shifter am14u Family Shaft, StageA 3 Stage – 32.74:1 Ratio 2:1, StageB 3 Stage – 15.11:1 Ratio 2:1 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 seamless transitions between speeds. 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 pre-installed.
The design improvements include a robust 1/8″ diameter shoulder screw and a dog gear made from AMPCO 18 Bronze, which provides increased strength and lubricity compared to previous materials. 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 first stage reduction of 85:15. Users have the autonomy to select their preferred high and low ratios, with the option to swap between them as needed.
The gearbox also supports various encoder options, including the US Digital E4T and the CTRE SRX mag encoder. Weight reduction features have been meticulously integrated into the gears and plates, and the cluster gears are designed for straightforward assembly. 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.
The EVO Shifter employs a pneumatic shift method, utilizing a spring-extend pneumatic cylinder for reliable performance during acceleration, pushing, or deceleration. The gearbox requires periodic greasing for optimal operation, with a recommended break-in period to ensure smooth functionality. The encoder ratio for two-stage versions is 3:1, facilitating precise control and programming.
Note: Ensure proper installation of the pinion gear using the recommended procedures and materials to maintain safety and performance standards.
View moreWhat’s Included
- 1x AndyMark EVO Shifter am14u Family Shaft, StageA 3 Stage – 32.74:1 Ratio 2:1, StageB 3 Stage – 15.11:1 Ratio 2:1
- 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
- More encoder options available
- Aggressive weight reduction features
- Cluster gears with same 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
- Extend stroke: 4 lbs, retract stroke: 15.7 lbs
- 15-tooth 32DP pinion gear included
- Red Loctite 271 recommended for pinion installation
- Gearbox requires grease for proper operation
- Encoder ratio: 3:1 on two-stage versions
Unconditional Satisfaction Guarantee
