Standard 20DP Gears

$12.00 – $22.00

$6.00 – $22.00

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20 DP gears are the most common gears used in FIRST Robotics Competition gearboxes. Want to replace one of your existing gears? Building a custom gearbox? This page is a hub for all of our standard...Read More

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Product Overview

20 DP gears are the most common gears used in FIRST Robotics Competition gearboxes. Want to replace one of your existing gears? Building a custom gearbox? This page is a hub for all of our standard width, symmetrical 3/8 hex and 1/2 inch hex bore 20 DP gears.

Check out our other 20 DP Gear pages for Pinion Gears and Shifting Gears and other special gears like those for the Toughbox line.

Part Number Tooth Count Bore Outside Dia (in.) Pitch Dia (in.) Weight (lb)
am-3484 14 0.375 in. Hex 0.80 0.70 0.03
am-3534 18 0.375 in. Hex 1.00 0.90 0.05
am-4212 18 0.500 in. Hex 1.00 0.90 0.05
am-4213 20 0.500 in. Hex 1.10 1.00 0.06
am-3820 20 0.375 in. Hex 1.10 1.00 0.07
am-3485 24 0.375 in. Hex 1.30 1.20 0.11
am-4214 24 0.500 in. Hex 1.30 1.20 0.11
am-3535 25 0.500 in. Hex 1.35 1.25 0.11
am-3536 30 0.375 in. Hex 1.60 1.50 0.11
am-4215 30 0.500 in. Hex 1.60 1.50 0.11
am-3815 32 0.500 in. Hex 1.70 1.60 0.11
am-3537 34 0.375 in. Hex 1.80 1.70 0.13
am-4186 35 0.375 in. Hex 1.85 1.75 0.14
am-3486 35 0.500 in. Hex 1.85 1.75 0.15
am-3816 36 0.500 in. Hex 1.90 1.80 0.15
am-3538 38 0.375 in. Hex 2.00 1.90 0.15
am-3976 40 0.375 in. Hex 2.10 2.00 0.17
am-3487 40 0.500 in. Hex 2.10 2.00 0.18
am-3819 46 0.500 in. Hex 2.40 2.30 0.19
am-3488 50 0.500 in. Hex 2.60 2.50 0.25
am-4367 50 0.375 in. Hex 2.60 2.50 0.24
am-3821 52 0.500 in. Hex 2.70 2.60 0.23
am-3822 56 0.500 in. Hex 2.90 2.80 0.27

Specifications

  • Bore: 0.501-0.507 in. Hex, 0.376-0.381 in. Hex
  • Diametral Pitch: 20
  • Face Width: 0.375 in.
  • Finish: Zinc Plated
  • Material: 4140 Steel
  • Width: 0.500 in.

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