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4" Stealth Wheel, 8mm Bore, 77A Durometer (am-2648)

 
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Product Overview:
The inside black portion of this wheel is made from molded polycarbonate plastic. The outer tread is TPU (thermoplastic polyurethane) with a 77a durometer hardness. This robust but lightweight wheel provides good traction on carpet and soft tiles. The Stealth wheels are the perfect wheel for intakes and other auxiliary robot mechanisms.Two bolt circles are included on this wheel, with an inner bolt pattern designed for use in FTC applications and the outer pattern designed mainly for FRC uses.

Product Usage:
Many thread locking materials are not compatible with polycarbonate and can eat away at the plastic. Be sure to check which adhesives are okay to use with this product. This link will allow you to check which materials are okay to use with what adhesives, http://bit.ly/loctitematerialcheck

Specifications:
  • Diameter: 4 inches
  • Body Material: Polycarbonate
  • Tread Material: Thermoplastic Polyurethane
  • Bore: 0.31 inch (8mm) with 4 holes 0.14 inch (3.5mm) diameter on a 0.63 inch (16mm) bolt circle
  • Weight: 0.24 pound
  • Inner Bolt Pattern: 4 holes, 0.14 inch (3.5mm) diameter on a 0.63 inch (16mm) bolt circle
  • Outer Bolt Pattern: 6 holes, 0.16 inch (6mm) diameter on a 1.875 inch bolt circle
  • Coefficient of friction: 0.63 on FTC soft tiles
  • Coefficient of Friction on Euroboard (Smooth Painted Composite): 0.99
  • Durometer: 77a
Usage:
Use #10-24x3/4 thread forming screws to attach sprockets or hubs to this wheel.

With Axle and Hub:
  • These stealth wheels have an integrated hub matching that of current Tetrix wheels. This means existing tetrix hub can be used to mate this wheel with a shaft.
With Sprocket:

Average Customer Review: 5 of 5 Total Reviews: 17 Write your own review!

  0 of 0 people found the following review helpful:
 
October 17, 2016
Reviewer: Linda Stewart from Charleston, SC United States  


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  0 of 0 people found the following review helpful:
 
Great wheels January 11, 2016
Reviewer: Kurt Lengacher from Greenwood, IN United States  
Great wheels.  very good grip on FTC floor pads.  A bit quick to break traction on ramps.   Probably not appropriate for the mountain in the Res-Q challenge unless you have a way to appropriately center weight to maximize traction

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  1 of 1 people found the following review helpful:
 
Good wheels October 15, 2015
Reviewer: Matthew Dayton from La Crescenta, CA United States  
only issue was dealing with the extra thickness of the wheel at the bore. Need extra long screws to get through it. Other than that, pretty great wheels, way better contact surface than others.

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  0 of 0 people found the following review helpful:
 
September 30, 2015
Reviewer: FTC 6150 from Dublin, OH United States  


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  0 of 0 people found the following review helpful:
 
1 May 18, 2015
Reviewer: Alexander Qu from Cedar Falls, IA United States  
1

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