AndyMark EVO Shifter am14u Family Hex Shaft, StageA 2 Stage – 04.77:1 Ratio, StageB 2 Stage – 16.37:1 Ratio

Description

• AndyMark EVO Shifter am14u Family Hex Shaft, StageA 2 Stage – 04.77:1 Ratio, StageB 2 Stage – 16.37:1 Ratio
• Advances with shift-on-the-fly gearbox
• Supports two CIM or NEO motor inputs
• Features AMPCO 18 Bronze dog gear
• Utilizes aggressive weight reduction
• Offers optional third stage for flexibility

The AndyMark EVO Shifter am14u Family Hex Shaft, StageA 2 Stage – 04.77:1 Ratio, StageB 2 Stage – 16.37:1 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 output shaft selection. The gearbox is shipped assembled, though motors are not installed.

Significant improvements have been made over previous models, including a robust 1/8″ diameter shoulder screw and a dog gear crafted from AMPCO 18 Bronze, which enhances strength and lubricity. The shift block assembly is reinforced with a larger bearing and threaded steel housing. The input stage employs 32 DP gears and a 15-tooth pinion gear, facilitating a high 85:15 first stage reduction. Users can independently select high and low ratios, with the option to swap ratios as needed. The gearbox also supports various encoder options, including the US Digital E4T.

The EVO Shifter features aggressive weight reduction and is designed for easy assembly, with cluster gears that have identical features on both sides. An optional third stage provides additional ratio choices. It can be mounted to an AM14U family chassis or a 2″x1″ box tube frame. The pneumatic shift method, powered by a spring-extend pneumatic cylinder, allows for shifting during acceleration, pushing, or deceleration.

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 Hex Shaft, StageA 2 Stage – 04.77:1 Ratio, StageB 2 Stage – 16.37:1 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 included
• 4140 steel output shafts
• Individual hardware within two-stage assembly (excluding gears from ratio A and B):
  • Two Stage EVO Shifter Motor Plate 2 Motor Plate (am-3526a)
  • Two Stage EVO Shifter Output Plate (am-3528)
  • 2 Stage EVO Shifter Cylinder and Encoder Mount Plate (am-3510)
  • 2 Stage EVO Shifter Plate Spacer (am-3546)
  • Red Tacky Grease, 14.2 gram (am-2768)
  • 1.867″ Aluminum Spacer (am-2262a)
  • Encoder Mount Pad (am-0208a)
  • 1/4-20 x 3.25″ SHCS (am-3338)
  • 1/4-20 Nylock Jam Nut – Bulk Qty (am-1102)
  • 10-32 x 2.75″ SHCS (am-1397)
  • 10-32 x 0.75″ SCHS (am-1047)
  • 10-32 Nylock Nut – Bulk Qty (am-1042)
  • 2 Stage EVO Shifter Cluster Shaft (am-3497)
  • 85 Tooth 32DP 0.375″ Hex Bore Gear (am-3533)
  • 3/8″ id Flanged, Shielded Ball Bearing (FR6ZZ) (am-0028)
  • 7/16ID 9/16OD 1/2 Long Sleeve Bearing (am-1349)
  • .443ID .125T Nylon Spacer (am-2930)
  • EVO Shifter Shift Block Assembly (am-3451)
  • 1/8″ Dia, 5/8″ Long Shoulder Screw, (am-1304)
  • 4 Tooth Dog, AMPCO 18 Bronze (am-3532)
  • 20 Tooth 32DP 20PA 0.375″ Bore Gear (am-3532)
  • External Klipring for 1/2″ shaft (am-0206)
  • .443ID .125T Nylon Spacer (am-1358)
  • Shift Cylinder, 3/4″ Bore, 1/2 Stroke Spring Extend (am-3494)
  • 8-32 SHCS x 0.5″ (am-1037)
  • 1/2″ Hex Bore, Flanged, Heavy Duty Inner Race Shielded Ball Bearing (FR8ZZ-HexHD) (am-2986)
  • 3/8″ id, 1/8 od, flanged ball bearing (am-0573)
  • 2 Shaft EVO Shifter Encoder Shaft (am-3502)
  • Flange Bronze Bearing (am-1371)
  • 60 Tooth 32 DP 0.250″ Bore Gear (am-3483)
  • 375 Ruland Collar Clamp (am-2382)
  • Cylinder Magnet, DX0DIA (am-3505)
  • E4T Encoder (am-3132)
  • 15 Tooth 32DP 0.312 Bore Gear (am-3482)
  • #10-32 x 5/8″ SHCS with Nylon Thread Lock Patch – Bulk Qty (am-1120)
  • Aluminum Spacer (am-3552)

Specifications

• Two-speed, shift-on-the-fly gearbox
• Enhanced 4-tooth dog shifting method
• Motor input: 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
• 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
• 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
• Included 15-tooth 32DP pinion gear
• Encoder ratio: 3:1 on two-stage versions