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AndyMark will be closed on Fridays through August 1st to allow staff flexible summer work hours.

20 Tooth Track Drive Pulleys

Save up to 36% Save %
Original price $11.70 - Original price $12.80
Original price $11.70 - Original price $12.80
Original price $11.70
$7.50 - $12.80
$7.50 - $12.80
Current price $7.50
These molded plastic pulley halves are specially designed to drive our TreadRunner or Rhino Track belts.
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  • Description
  • Specifications
  • Documentation
  • These rigid pulleys come in two halves that interlock and screw together. The pulleys can be found in our TreadRunner (am-3437_TDR) robot platform and drives the powerful treads (am-3963).

    These molded plastic pulley halves are specially designed to drive our Rhino Track Drive belt (am-3288) and are used as drive pulleys in the Rhino Track Drive module (am-3322). This design features strength improvements over earlier designs.

    These pulley halves are made from the Rev4 pulley design, which includes these improvements over the Rev3 design:

    • Less recessed depth for screw counter bore
    • 6 additional ribs supporting the material around the bearing pocket
    • Increased radius for ribs supporting the material around the bearing pocket
    • Added a fillet feature at the base of the screw counter bore
    The process for improvements for this Rev4 version is documented on this web page.

    Included Items:

    Parts Included in am-3967:

    • 2 - TreadRunner Pulley Halves (am-3967_half)
    • 6 - 10-24 x 1.25 in Self-Tapping Screw (am-1266)

    Parts Included in am-3298a:

    • 2 - Pulley Half (am-3298a_half)
    • 6 - 10-24 x 1.25 in Self-Tapping Screw (am-1266)
    ----------------------------------------------------------------------------------------------------
    • Hole Pattern: (4) 0.125 in. holes on a 16 mm circle, (6) 0.157 in. holes on a 1.875 in. circle
    • Inside Diameter: 6 mm
    • Material: Polycarbonate, Steel
    • Outside Diameter: 3.31 in.
    • Teeth: 20
    • Weight: 0.4
  • CAD Files

    am-3298a 20 tooth Molded Tank Pulley Half Rev4.STEP

    Layout Prints

    am-3298a 20 tooth Molded Tank Pulley Half.PDF

Customer Reviews

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M
MB from Mars Hill
Replacement Rhino-Track Hubs

Although the original hubs lasted only 2 or 3 matches (at FRC events), none of the replacements have failed to date.

C
CF from Indianapolis
Attachment

What screws do you recommend for attaching a hub to this drive pulley?

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