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

4 in. SD Mecanum Wheel

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Original price $25.00 - Original price $93.00
Original price $25.00 - Original price $93.00
Original price $25.00
$12.80 - $42.00
$12.80 - $42.00
Current price $12.80
This kit contains the makings of 4 inch Mecanum wheels.
Choose a Mecanum Wheel
SKU
  • Description
  • Specifications
  • Documentation
  • Choose your selection of 1 or a set of 4 AndyMark 4 inch Mecanum wheels, sold in unassembled kits. All wheels use the same parts, you just assemble them in different configurations to create two left-handed and two right-handed wheels. With a load capacity of 50 pounds per set of four (17 lbs per wheel), these wheels are perfect for a smaller robot like the ones that compete in FIRST Tech Challenge.

    If your robot is going to be carrying around more than that, like most FIRST Robotics Competition robots do, check out the 4 in. HD Mecanum Set, (am-3067).

    Here is where you can find replacement rollers.

    Included Hardware:

    • Eight - Mecanum Body Halves
    • Fourty-Eight - Individual 4-40 x 1/2 in. PPHS
    • Fourty-Eight - Individual Rollers
    • Fourty-Eight - Individual Washers
    • Twenty-Four - Wheel Spindle
    • Twenty-Four - Individual 4-40 x 1 in. STS

    Usage:

    This wheel is designed to directly mount to any of our Nubs for gearbox attachment.

    To use with Axle and Hub:

    • If you wish to drive this wheel with an Axle and Hub, you can pick your hub by fitting any of the AndyMark hubs to this wheel. Hubs are NOT included in the price of the wheel. If this is your choice, then no bearing is needed. To install a hub onto a 6 in. Mecanum Wheel, use Hardware Kit 2.

    Learn how to position these wheels by watching this video.

    • Bolt Circle: 0.138 in. [3.5 mm] diameter holes on 0.630 in. [16 mm] bolt circle, 0.200 in. [5.1 mm] diameter holes on 1.875 in. [47.6 mm] bolt circle
    • Bore: Nub Bore
    • Diameter: 4 in. [100 mm]
    • Forward / Reverse Coefficient of Friction: 0.51 on FTC Soft-tile
    • Load Capacity: 17 lbs. [7.7 kg] per wheel or 50 lbs. [31.6 kg] per set of 4
    • Material: Polycarbonate, TPU, Nylon
    • Roller Durometer: 80A
    • Rollers: 6, with each being 2 independent rollers
    • Sideways CoF: 0.67 on FTC Soft-tile
    • Weight: 0.35 lbs. per wheel
    • Width Across Middle: 1.125 in. [28.6 mm]
    • Width at Rollers: 2.0 in. [50 mm]
  • CAD Files

    am-2538 - 4 in mecanum left wheel.STEP
    am-2538 - 4 in mecanum right wheel.STEP

    Guides

    am-2626 4in Mecanum Wheel.pdf

    Additional Files

    am-2626 4in wheel durability white paper.pdf

Customer Reviews

Based on 27 reviews
48%
(13)
30%
(8)
11%
(3)
0%
(0)
11%
(3)
a
a b
DO NOT BUY THIS PRODUCT FOR YOUR DRIVETRAIN

Do not buy this product for your drivetrain. Buy the BB mecanums for that instead. Or the HD mecanums. Or mecanums from other suppliers I'm begging you. These won't strafe well, are generally fragile and you have to assemble them yourselves. There is a reason why the MecanAM drivetrain does not include these as an option.

Are the alternatives more expensive? Yes. But they will actually work as mecanums and you will be able to strafe smoothly.

They can be serviceable as low-load FTC-scale intake options. But please, don't put these on your drivetrain.

F
FG from NOVO HAMBURGO
Great for FTC

Very good quality Mecanum wheels.

R
RT from Waco
Super Easy Web ordering

5 Stars

M
MR from Fort Worth
2018 FTC Purchases Western Hills High School

I was very pleased with the quality and service. Items ordered were received expeditiously.

G
GC from Overland Park
Good starter Mecanum

These Mecanum are noticeably worse than the HD version but for an FTC team with a light bot they can work well and they're a LOT cheaper.

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