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    64 Tooth Gear (2 pack)

    #76221-2
    $34.71
    (281 In stock)

    Specifications:

    • Material: 6061-T6 Aluminum
    • Thickness: 6.35mm
    • Hole Diameter: 14mm
    • Number of teeth: 64
    • Step File

    128 Tooth Gear

    #76222
    $27.77
    (255 In stock)

    Specifications:

    • Material: 6061-T6 Aluminum
    • Thickness: 6.35mm
    • Hole Diameter: 14mm
    • Number of teeth: 128
    • Step File

     

    13 Tooth Bevel Gear (2 pack)

    #76223-2
    $19.43
    (556 In stock)

    Specifications:

    • Material: 6061-T6 Aluminum
    • Number of teeth: 13
    • Step File

     

    26 Tooth Bevel Gear (2 pack)

    #76224-2
    $20.82
    (515 In stock)

    Specifications:

    • Material: 6061-T6 Aluminum
    • Number of teeth: 26
    • Step File

     

    Three Tooth Dog Gear (am-0020)

    #am-0020
    $46.13
    (In stock)

    This is Dog Gear used within the AM Shifters and Super Shifters. It is shipped with a strong, solid body #4-40 screw. The dog gear has a pocketed hole for the head of a 4-40 screw and on the opposing side are threads to match.

    Specifications:

    • Bore: 1/2" hex broached hole
    • Material: stainless steel
    • Outside Diameter: 1 in.
    • Teeth: 3
    • Weight: 0.044 lbs

    48T 20DP 1.125" Round Bore, Steel Gear

    #am-0022
    $35.36
    (In stock)

    This product uses a dog gear for shifting gearboxes. The mating dog gear can be found here. 

    Specifications:

    • Material: 4140 steel
    • Number of teeth: 48
    • Diametral pitch: 20
    • Pressure angle: 14.5
    • Pitch Diameter: 2.4 inch
    • Bore: 1.1245 inch diameter on back side, for a press fit of an R8 ball bearing
    • Thickness: 0.375 inch
    • Weight: 0.284 pounds
    • Tooth Size: 0.085 inches

    35T 20DP 0.8745" Round Bore, Steel Gear

    #am-0023
    $26.14
    (In stock)

    This product uses a dog gear for shifting gearboxes. The mating dog gear can be found here. 

    Specifications:

    • Material: 4140 steel
    • Diametral pitch: 20
    • Pressure angle: 14.5
    • Number of teeth: 35
    • Pitch Diameter: 1.75 inch
    • Bore: 0.8745" dia. on back, with dog pockets, for pressing in the FR6 bearing
    • Thickness: 0.375 inch
    • Weight: 0.164 pounds
    • Tooth Size: 0.080 inches

    14T 20DP 8mm Round with 2mm Key, Steel Gear

    #am-0034
    $15.38
    (In stock)

    This gear is the CIM gear for the Toughbox and Toughbox Mini. 

    Specifications:

    • Material: 4140 steel
    • Diametral pitch: 20
    • Pressure angle: 14.5
    • Number of teeth: 14
    • Pitch Diameter: 0.7 inch
    • Bore: 0.314 inch (8mm) diameter, with 2mm keyway
    • Thickness: 0.50 inch
    • Weight: 0.05 pound

    35T 20DP 0.375" Hex Bore, Steel Gear

    #am-0140
    $24.60
    (In stock)

    The purpose of this gear is to be located on the shifting shaft of an AndyMark transmission (AM Shifter, Super Shifter). It is to be paired with a 28 (tooth) Small Output Gear. This is not a standard gear shipped with AndyMark transmissions. It is an optional part, as is the 28 Small Output Gear. The 28 Small Output Gear and the 35 Medium Cluster gear replace the standard set of Small Output Gear (35 tooth) and Medium Cluster Gear (28 tooth) on AndyMark transmissions. 

    Specifications:

    • Material: 4140 steel, cold rolled
    • Teeth: 35
    • Diametral Pitch: 20
    • Pressure Angle: 14.5
    • Pitch Diameter: 1.75 inch
    • Face Width: 3/8 inch
    • Bore: 3/8" hex bore
    • Weight: 0.236 pounds
    • Tooth Size: 0.08 inches

    Gear Ratios: 
    35 Medium Cluster Gear : 28 Small Output Gear --> 4:1 ratio between high and low gear on an AndyMark transmission (AM Shifter, Super Shifter). The standard ratio for these same transmissions are 2.56:1. This gear provides a TALLER ratio between high and low gear on these transmissions

    50T 20DP 0.375" Hex Bore, Steel Gear

    #am-0149
    $26.14
    (In stock)

    Specifications:

    Number of teeth: 50
    Diametral pitch: 20
    Pressure angle: 14.5 degrees
    Pitch Diameter: 2.5 inch
    Face width: 0.375 inch
    Overall width: 0.400 inch
    Bore: 0.377 inch hex hole
    Material: 4140 steel, cold formed into gear teeth
    Weight: 0.431 lbs.

    50T 20DP 0.5" Hex Bore, Steel Gear

    #am-0150
    $26.14
    (In stock)

    This is the 50 tooth gear in the Toughbox, and has a 1/2 inch hex bore. 

    Specifications:

    • Number of teeth: 50
    • Diametral pitch: 20
    • Pressure angle: 14.5 degrees
    • Pitch Diameter: 2.5 inch
    • Face width: 0.375 inch
    • Overall width: 0.400 inch
    • Bore: 0.502 inch hex hole
    • Material: 4140 steel, cold formed into gear teeth
    • Weight: 0.425 lbs

    14T 20DP 0.375" Hex Bore, Steel Gear

    #am-0151
    $15.38
    (In stock)

    This is the 14 tooth gear in the Toughbox which has a 3/8 inch hex bore. 

    Specifications:

    • Number of teeth: 14
    • Diametral pitch: 20
    • Pressure angle: 14.5 degrees
    • Pitch Diameter: 0.7 inch
    • Face width: 0.575 inch
    • Overall width: 0.600 inch
    • Bore: 0.377 inch hex hole
    • Material: 4140 steel, cold formed into gear teeth
    • Weight: 0.1 lbs.

    19T 20DP 0.375" Hex Bore, Steel Gear

    #am-0176
    $18.45
    (In stock)

    This gear can be used in the Toughbox, replacing the 14 tooth small cluster gear. It would be paired with a 45 Tooth Large Output Gear, in order to increase the output speed of the Toughbox. 

    Standard Toughbox output reduction: 12.76:1
    Using this gear and a 45 Tooth Large Output Gear yields an 8.45:1 ratio.

    Specifications:

    • Number of teeth: 19
    • Diametral pitch: 20
    • Pressure angle: 14.5 degrees
    • Pitch Diameter: 0.95 inch
    • Face width: 0.575 inch
    • Overall width: 0.600 inch
    • Bore: 0.377 inch hex hole
    • Material: 4140 steel, cold formed into gear teeth
    • Weight: 0.1 lbs.

    24T 20DP 0.375" Hex Bore, Steel Gear

    #am-0177
    $19.99
    (In stock)

    This gear can be used in the Toughbox, replacing the 14 tooth small cluster gear. It would be paired with a 40 Tooth Large Output Gear, in order to increase the output speed of the Toughbox®. When using this cluster gear you may want to add the 3/16 Thick Nylon Spacer (am-1181) to the shaft. This gear is narrower than the standard Toughbox cluster gear and the spacer fills the gap

    Standard Toughbox output reduction: 12.76:1
    Using this gear and a 40 Tooth Large Output Gear yields a 5.95:1 ratio.

    Specifications:

    • Number of teeth: 24
    • Diametral pitch: 20
    • Pressure angle: 14.5 degrees
    • Pitch Diameter: 1.2 inch
    • Face width: 0.375 inch
    • Overall width: 0.400 inch
    • Bore: 0.377 inch hex hole
    • Material: 4140 steel, cold formed into gear teeth
    • Weight: 0.17 lbs.

    45T 20DP 0.5" Hex Bore, Steel Gear

    #am-0179
    $26.14
    (In stock)

    This gear can be used in the used in the Toughbox series gearboxes, replacing the 50 Tooth Large Output Gear. It would be paired with a 19 Tooth Small Cluster Gear, in order to increase the output speed of the Toughbox. 

    Standard Toughbox output reduction: 12.75:1
    New Toughbox output reduction, using this gear and a 19 Tooth Small Cluster Gear: 8.45:1 

    Specifications:

    • Material: 4140 steel
    • Diametral pitch: 20
    • Pressure angle: 14.5
    • Number of teeth: 45
    • Pitch diameter: 2.25 inch
    • Bore: 1/2 inch hex hole, broached
    • Thickness: 0.4 inch
    • Weight: 0.36 pound

    45T 20 DP 0.5" Hex Bore, Steel Gear

    #am-0185
    $26.14
    (In stock)

    This gear is used on the Super Shifter, as the standard gear for the final stage. It is paired with the 20 Tooth Gear 500 Key Bore. 

    Specifications:

    • Number of teeth: 45
    • Diametral pitch: 20
    • Pressure angle: 14.5 degrees
    • Pitch Diameter: 2.25 inch
    • Face width: 0.54 inch
    • Overall width: 0.57 inch
    • Bore: 0.502 inch hex hole
    • Material: 4140 steel, cold formed into gear teeth
    • Weight: 0.56 lbs.