Description
- AndyMark EVO Shifter Short Hex Shaft, StageA 3 Stage – 12.00:1 Ratio 2:1, StageB 3 Stage – 45.33:1 Ratio 2:1
- Features two-speed, shift-on-the-fly gearbox
- Utilizes improved 4-tooth dog shifting method
- Offers flexible motor input with two CIM or NEO motors
- Includes robust AMPCO 18 Bronze dog gear
- Supports pneumatic shift method with spring-extend cylinder
The AndyMark EVO Shifter Short Hex Shaft, StageA 3 Stage – 12.00:1 Ratio 2:1, StageB 3 Stage – 45.33:1 Ratio 2:1 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 features a robust design with a 1/8″ diameter shoulder screw and a dog gear made from AMPCO 18 Bronze, which provides enhanced strength and lubricity compared to previous stainless steel designs. The shift block assembly is reinforced with a larger bearing and threaded steel housing, ensuring durability and reliability. The input stage utilizes 32 DP gears and a 15-tooth pinion gear, achieving a high first stage reduction of 85:15.
Users have the ability to independently select high and low gear ratios, with the option to swap between them as needed. The gearbox also supports various encoder options, including the US Digital E4T encoder. Weight reduction features have been incorporated into the gears and plates, facilitating easier assembly and disassembly without concern for gear orientation.
The EVO Shifter employs a pneumatic shift method, powered by a spring-extend pneumatic cylinder, allowing for gear shifts even during acceleration or deceleration. The gearbox is compatible with existing mounting plate holes, making it suitable for installation 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 of the gearbox.
View moreWhat’s Included
- 1x AndyMark EVO Shifter Short Hex Shaft, StageA 3 Stage – 12.00:1 Ratio 2:1, StageB 3 Stage – 45.33:1 Ratio 2:1
- Shielded, flanged ball bearings
- 1117 steel 32 DP gears
- 4140 steel 20 DP gears
- 1/4″ thick aluminum side plates, pocketed
- US Digital encoder and pneumatic cylinder
- 4140 steel output shafts
- Two Stage EVO Shifter Motor Plate 2 Motor Plate
- Two Stage EVO Shifter Output Plate
- 2 Stage EVO Shifter Cylinder and Encoder Mount Plate
- 2 Stage EVO Shifter Plate Spacer
- Red Tacky Grease, 14.2 gram
- 1.867″ Aluminum Spacer
- Encoder Mount Pad
- 1/4-20 x 3.25″ SHCS
- 1/4-20 Nylock Jam Nut
- 10-32 x 2.75″ SHCS
- 10-32 x 0.75″ SCHS
- 10-32 Nylock Nut
- 2 Stage EVO Shifter Cluster Shaft
- 85 Tooth 32DP 0.375″ Hex Bore Gear
- 3/8″ id Flanged, Shielded Ball Bearing
- 7/16ID 9/16OD 1/2 Long Sleeve Bearing
- .443ID .125T Nylon Spacer
- EVO Shifter Shift Block Assembly
- 1/8″ Dia, 5/8″ Long Shoulder Screw
- 4 Tooth Dog, AMPCO 18 Bronze
- 20 Tooth 32DP 20PA 0.375″ Bore Gear
- External Klipring for 1/2″ shaft
- Shift Cylinder, 3/4″ Bore, 1/2 Stroke Spring Extend
- 8-32 SHCS x 0.5″
- 1/2″ Hex Bore, Flanged, Heavy Duty Inner Race Shielded Ball Bearing
- 3/8″ id, 1/8 od, flanged ball bearing
- 2 Shaft EVO Shifter Encoder Shaft
- Flange Bronze Bearing
- 60 Tooth 32 DP 0.250″ Bore Gear
- 375 Ruland Collar Clamp
- Cylinder Magnet, DX0DIA
- E4T Encoder
- 15 Tooth 32DP 0.312 Bore Gear
- #10-32 x 5/8″ SHCS w/ Nylon Thread Lock Patch
- Aluminum Spacer
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
- 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 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
- Included 15-tooth 32DP pinion gear
- Encoder Ratio: 3:1 on two-stage versions
- Shielded, flanged ball bearings
- 1117 steel 32 DP gears, 4140 steel 20 DP gears
- 1/4 inch thick aluminum side plates, pocketed
- US Digital encoder and pneumatic cylinder included
- 4140 steel output shafts
Unconditional Satisfaction Guarantee
