Shop the Andy's Favorites Sale all July long! Don't miss out on weekly deals—use code CELEBRATE20 to get 20% off.
Summer Hours: Mon. - Thurs. 8:00 AM - 5:00 PM, CLOSED FRIDAYS through 8/2/24. CLOSED on July 4th.
Shop the Andy's Favorites Sale all July long! Don't miss out on weekly deals—use code CELEBRATE20 to get 20% off.
Summer Hours: Mon. - Thurs. 8:00 AM - 5:00 PM, CLOSED FRIDAYS through 8/2/24. CLOSED on July 4th.
$12.00 – $26.00
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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Write a Review20 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 | Hex Bore (in.) | Outside Dia (in.) | Pitch Dia (in.) | Weight (lbs) |
---|---|---|---|---|---|
am-3484 | 14 | 0.375 | 0.80 | 0.70 | 0.03 |
am-4389 | 15 | 0.375 | 0.85 | 0.75 | |
am-4665 | 16 | 0.375 | 0.90 | 0.80 | 0.05 |
am-4390 | 17 | 0.375 | 0.95 | 0.85 | |
am-3534 | 18 | 0.375 | 1.00 | 0.90 | 0.05 |
am-4212 | 18 | 0.500 | 1.00 | 0.90 | 0.05 |
am-3645 | 19 | 0.375 | 1.05 | 0.95 | 0.07 |
am-5131 | 19 | 0.500 | 1.05 | 0.95 | 0.06 |
am-4213 | 20 | 0.500 | 1.10 | 1.00 | 0.06 |
am-3820 | 20 | 0.375 | 1.10 | 1.00 | 0.07 |
am-3646 | 21 | 0.375 | 1.15 | 1.05 | 0.08 |
am-5132 | 21 | 0.500 | 1.15 | 1.05 | 0.07 |
am-3485 | 24 | 0.375 | 1.30 | 1.20 | |
am-4214 | 24 | 0.500 | 1.30 | 1.20 | 0.11 |
am-3535 | 25 | 0.500 | 1.35 | 1.25 | 0.11 |
am-4391 | 25 | 0.375 | 1.35 | 1.25 | |
am-3647 | 28 | 0.375 | 1.50 | 1.40 | |
am-5133 | 28 | 0.500 | 1.50 | 1.40 | 0.14 |
am-4392 | 28 | 0.375 | 1.50 | 1.40 | |
am-5134 | 29 | 0.375 | 1.55 | 1.45 | 0.11 |
am-5135 | 29 | 0.500 | 1.55 | 1.45 | 0.15 |
am-3536 | 30 | 0.375 | 1.60 | 1.50 | 0.11 |
am-4215 | 30 | 0.500 | 1.60 | 1.50 | 0.11 |
am-3815 | 32 | 0.500 | 1.70 | 1.60 | 0.11 |
am-5136 | 32 | 0.375 | 1.70 | 1.60 | 0.11 |
am-3537 | 34 | 0.375 | 1.80 | 1.70 | 0.13 |
am-5137 | 34 | 0.500 | 1.80 | 1.70 | 0.14 |
am-4186 | 35 | 0.375 | 1.85 | 1.75 | 0.14 |
am-3486 | 35 | 0.500 | 1.85 | 1.75 | 0.15 |
am-5147 | 35 | 0.500 | 1.85 | 1.75 | 0.05 |
am-5146 | 35 | 0.375 | 1.85 | 1.75 | 0.05 |
am-3816 | 36 | 0.500 | 1.90 | 1.80 | 0.15 |
am-4709 | 36 | 0.500 | 1.90 | 1.80 | 0.25 |
am-5138 | 36 | 0.375 | 1.90 | 1.80 | 0.13 |
am-3538 | 38 | 0.375 | 2.00 | 1.90 | 0.15 |
am-3718 | 38 | 0.500 | 2.00 | 1.90 | |
am-3976 | 40 | 0.375 | 2.10 | 2.00 | 0.17 |
am-3487 | 40 | 0.500 | 2.10 | 2.00 | 0.18 |
am-4710 | 40 | 0.500 | 2.10 | 2.00 | 0.32 |
am-5148 | 40 | 0.500 | 2.10 | 2.00 | 0.06 |
am-4393 | 43 | 0.500 | 2.25 | 2.15 | 0.21 |
am-5139 | 43 | 0.375 | 2.25 | 2.15 | 0.19 |
am-5149 | 43 | 0.375 | 2.25 | 2.15 | 0.07 |
am-4711 | 43 | 0.500 | 2.25 | 2.15 | 0.37 |
am-5151 | 43 | 0.500 | 2.25 | 2.15 | 0.07 |
am-4394 | 45 | 0.500 | 2.35 | 2.25 | 0.20 |
am-4712 | 45 | 0.500 | 2.35 | 2.25 | 0.41 |
am-5140 | 45 | 0.375 | 2.35 | 2.25 | 0.20 |
am-5152 | 45 | 0.375 | 2.35 | 2.25 | 0.07 |
am-5153 | 45 | 0.500 | 2.35 | 2.25 | 0.07 |
am-5141 | 46 | 0.375 | 2.40 | 2.30 | 0.19 |
am-3819 | 46 | 0.500 | 2.40 | 2.30 | 0.19 |
am-4713 | 46 | 0.500 | 2.40 | 2.30 | 0.43 |
am-4395 | 48 | 0.500 | 2.50 | 2.40 | 0.26 |
am-4714 | 48 | 0.500 | 2.50 | 2.40 | 0.48 |
am-5142 | 48 | 0.375 | 2.50 | 2.40 | 0.22 |
am-3488 | 50 | 0.500 | 2.60 | 2.50 | 0.25 |
am-4715 | 50 | 0.500 | 2.60 | 2.50 | 0.50 |
am-4367 | 50 | 0.375 | 2.60 | 2.50 | 0.24 |
am-4720 | 50 | 0.375 | 2.60 | 2.50 | 0.51 |
am-5154 | 50 | 0.375 | 2.60 | 2.50 | 0.08 |
am-5155 | 50 | 0.500 | 2.6 | 2.5 | 0.09 |
am-4733 | 52 | 0.375 | 2.70 | 2.60 | |
am-3821 | 52 | 0.500 | 2.70 | 2.60 | 0.23 |
am-3822 | 56 | 0.500 | 2.90 | 2.80 | 0.27 |
am-5156 | 56 | 0.375 | 2.90 | 2.80 | 0.01 |
am-5143 | 56 | 0.375 | 2.90 | 2.80 | 0.27 |
am-5157 | 56 | 0.500 | 2.90 | 2.80 | 0.10 |
Returns are accepted within 30 days of purchase.
View our return policy here.