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    9" Tempered Steel Spring

    This is a steel compression spring, similar to the one used in the 2017 game FIRST STEAMWORKS?. 

    This spring is slightly stiffer than the McMaster-Carr 9664K68 spring. Notice below that the spring deflection for the AndyMark spring is 1/2" less than the McMaster spring when they both hold on 10 tooth gear.

    Specifications:

    • Length: 9.0"
    • OD: 0.875"
    • Wire Diameter: 0.135"
    • Weight: 0.64 pound
    • Material: Tempered Steel
    MFR Part #: am-3557
    $4.61
    Availability: In stock

     

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    1/2" External Retaining Ring

    #am-2371
    $0.47
    (In stock)

    1/2 inch external retaining ring, used in the RAW Box. 

    Specifications: 

    • Material: Steel
    • For Shaft Diameter: 1/2"
    • Thickness: 0.031"
    • Type: External Retaining Ring
    • Free Inside Diameter: 0.456"
    • Plier Hole Diameter: 0.40"
    • Weight: 0.002 pounds

    3/8 in. Push On Retaining Ring

    #am-1253
    $0.45
    (20 In stock)

    This retainer clip is used to hold objects (such as gears) in place on shafts. 

    Example: This product can be used to hold a gear onto a PG71 motor shaft. 

    Specification: 

    • Material: Steel
    • Inner Diameter: 3/8"
    • Outer Diameter: 0.64"
    • Weight: Less than 0.001 lbs

    External Klipring for 3/8" Shaft

    #am-1124
    $0.38
    (In stock)

    Specifications:

    • Material: Steel with Black Phosphate Coating
    • Thickness: 0.035 inch
    • Free Inside Diameter: 0.300"
    • Free Outside Diameter: 0.660"
    • Groove Depth: 0.036"
    • Groove Diameter: 0.303"
    • Groove Width: 0.039"
    • Shaft Diameter: 3/8"

    Retainer Clip, 8mm id

    #am-0033
    $0.38
    (In stock)

    This retainer clip is used to hold objects (such as gears) in place on shafts. 

    Example: This product can be used to hold a gear onto a CIM motor shaft. 

    Specification: 

    • Material: Steel
    • Inner Diameter: 8mm
    • Outer Diameter: 15mm
    • Weight: Less than 0.001 lbs

    Retaining Ring for 6 mm D Shaft

    #am-1438
    $0.38
    (In stock)

    This retaining ring can be used on 6 mm D shafts to hold components in place. This is most useful on the shaft of NeveRest gearmotors & gearboxes. 

    Product Overview:

    • Inner Diameter: for 6mm D Shaft
    • Outer Diameter: 0.437 in.
    • Weight: 0.0005 Pounds

    Retaining Ring, 3/4", External

    #am-1285
    $0.47
    (In stock)

    This external retaining ring is used to fit into a groove on a 3/4" shaft. 

    External Rings fit into the groove of a shaft. The portion of the ring that protrudes from the groove holds the assembly in place. 

    Example: Within AndyMark products, this fastener is used to hold the FlexHub into gears and sprockets with 3/4" hex bore.

    Specification: 

    • Material: Steel
    • For Shaft Diameter: 3/4"
    • Specification: ASME B18.27.1
    • Thickness: 0.042"
    • Type: External Retaining Ring
    • Free Inside Diameter: 0.693"
    • Lug Height: 0.136"
    • Section Width Maximum/Minimum: 0.092/0.051"
    • Groove Diameter: 0.704"
    • Groove Width: 0.046"
    • Groove Depth: 0.023"
    • Plier Hole Diameter: 0.052"
    • Weight: 0.002 pound