Brand: VEX Robotics
Product Code: 217-3417
Availability: In Stock
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40t Dog Gear with 0.500in Bearing

20 DP, Ball Shifter & Dog Gears (1 of 9 choices)

VEXpro offers an assortment of gear types, chosen to provide the greatest versatility of gearing options to users. Our sizes were specifically chosen to provide a wide spread of of ratio options useful for FIRST ® Robotics Competition designers. Larger size VEXpro gears are available so designers can accomplish their entire reduction in a single stage where otherwise they would have used more than one!

All VEXpro gears are 20DP with 14.5 degree pressure angle, and have the same overall width -- this means it is easy to interchange VEXpro gears in your design to change a ratio without modifying the overall system; true versatility.

Ball Shifter gears include cutouts for the VEXpro Ball Shifter

Dog gears include cutouts for the WCP DS gearbox

All options:

  • 34T Ball Shifter Gear with Bushing (20 DP, Ball Shifter) P/N 217-3212
  • 44t Aluminum Spur Gear (20 DP, Ball Shifter) P/N 217-2709
  • 50t Aluminum Spur Gear (20 DP, Ball Shifter) P/N 217-3219
  • 54t Aluminum Spur Gear (20 DP, Ball Shifter) P/N 217-3222
  • 60t Aluminum Spur Gear (20 DP, Ball Shifter) P/N 217-2713

        Dog Gears

  • 40t Aluminum Spur Gear (20 DP, Dog, 1/2" Bearing) P/N 217-3417
  • 44t Aluminum Spur Gear (20 DP, Dog, 1/2" Bearing) P/N 217-3418
  • 50t Aluminum Spur Gear (20 DP, Dog, 1/2" Bearing) P/N 217-3419
  • 60t Aluminum Spur Gear (20 DP, Dog, 1/2" Hex Bearing) P/N 217-3420


Can't tell a 40T gear from a 42T, but don't want to count the teeth? The VEXpro Gear Reference guide contains 1:1 outlines of all VEXpro gears for quick identification.  Click here to download the VEXpro Gear Reference Guide. Note: Calibrate your printer scaling by printing the first page and checking the 1" line in the bottom right.