AndyMark EVO Shifter am14u Family Shaft, StageA 3 Stage - 15.11:1 Ratio 2:1, StageB 3 Stage - 12.00:1 Ratio 2:1

AndyMarkSKU: RB-And-1790
Manufacturer #: EVO-2-151-120-UH3

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Sale price ¥64,219

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Description

  • AndyMark EVO Shifter am14u Family Shaft, StageA 3 Stage - 15.11:1 Ratio 2:1, StageB 3 Stage - 12.00:1 Ratio 2:1
  • Features two-speed shift-on-the-fly operation
  • Incorporates rugged AMPCO 18 Bronze dog gear
  • Offers flexible motor and output configurations
  • Utilizes advanced pneumatic shift method
  • Includes aggressive weight reduction features

The AndyMark EVO Shifter am14u Family Shaft, StageA 3 Stage - 15.11:1 Ratio 2:1, StageB 3 Stage - 12.00:1 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 output shaft selection. The gearbox is delivered assembled, though motors are not pre-installed.

The EVO Shifter features several improvements over previous models, including a robust 1/8" diameter shoulder screw and a dog gear made from AMPCO® 18 Bronze, which provides added lubricity for smoother shifting. The shift block assembly is reinforced with a larger bearing and threaded steel housing, enhancing durability. The input stage employs 32 DP gears and a 15-tooth pinion gear, achieving a high 85:15 first stage reduction. Users can independently select high and low ratios, with the option to swap ratios as needed. Additional encoder options are available, and the gearbox includes aggressive weight reduction features for optimized performance.

The gearbox utilizes a pneumatic shift method powered by a spring-extend pneumatic cylinder, enabling shifts during acceleration, pushing, or deceleration. It is designed to be mounted on an AM14U family chassis or a 2"x1" box tube frame using existing mounting plate holes. The gearbox's weight ranges from 2.9 to 3.5 pounds, depending on the stage configuration.

Note: Proper greasing is essential for the gearbox's operation and longevity. It is recommended to run the gearbox for 30 minutes without grease for initial wear-in before applying grease to the spur gears periodically.

  • 1x AndyMark EVO Shifter am14u Family Shaft, StageA 3 Stage - 15.11:1 Ratio 2:1, StageB 3 Stage - 12.00:1 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
  • 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)
  • 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

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