Mechanical

We have nearly every mechanical part you need to build and maintain a robot including gear motors, servos, wheels, tank treads, and much more.

We also offer fully assembled robots, robot kits, and electrical robot parts.

If you’ve got questions about robots, we’ve got answers in our Knowledge Base, which includes guides, support articles, FAQs, and tutorials like How to Build a Robot as well as our Robotics Forum.



ATR Heavy Duty Wheel and Shaft Set Pair - 10 inch pneumatic
ATR Heavy Duty Wheel and Shaft Set Pair - 10 inch pneumatic

This pair of pneumatic ATR wheels are 10" in diameter. The 1/2" diameter steel shafts with steel hub..

Product Code: TD-068-000

Built to Order 0-1 Days

$124.87

ATR Heavy Duty Wheel and Shaft Set Pair - 10 inch Traction Lug
ATR Heavy Duty Wheel and Shaft Set Pair - 10 inch Traction Lug

This pair of pneumatic ATR wheels are 10" in diameter. The 1/2" diameter steel shafts with steel hub..

Product Code: TD-162-000

Built to Order 0-1 Days

$102.84

ATR Heavy Duty Wheel and Shaft Set Pair - 6 inch pneumatic
ATR Heavy Duty Wheel and Shaft Set Pair - 6 inch pneumatic

Sold as a pair, the custom machined shafts are 1/2" diameter steel with steel hubs (cut by our CNC P..

Product Code: TD-159-000

Built to Order 0-1 Days

$117.36

ATR Rigid Bumper Assembly
ATR Rigid Bumper Assembly

This is a rigid bumper that will mount on the front or back of most of our All Terrain Wheeled Robot..

Product Code: TD-133-000

Built to Order 2-4 Days

$88.80

ATR Shaft 12mm Bore for 10 inch Tire
ATR Shaft 12mm Bore for 10 inch Tire

This is a single axle with a hub that mounts to our 10" pneumatic tires or our 10" pneumatic tiller ..

Product Code: TD-172-012

40 In stock

$22.48

ATR Shaft 12mm Bore for 13 inch Tire
ATR Shaft 12mm Bore for 13 inch Tire

This is a single axle with a hub that mounts to our 13" pneumatic tiller tires. The end opposite the..

Product Code: TD-265-012

10 In stock

$48.50

ATR Shaft 6mm Bore for 6 inch Tire - SB
ATR Shaft 6mm Bore for 6 inch Tire - SB

This is a single axle with a hub that mounts to our 6" pneumatic tires. The end opposite the hub is ..

Product Code: TD-170-006

36 In stock

$19.71

ATR Shaft 6mm DM - 6 inch Tire
ATR Shaft 6mm DM - 6 inch Tire

This is a single axle with a hub that mounts to our 6" pneumatic tires or our 6" solid core tires. T..

Product Code: TD-173-006

170 In stock

$14.48

ATR Shaft 8mm Bore for 10 inch Tire
ATR Shaft 8mm Bore for 10 inch Tire

This is a single axle with a hub that mounts to our 10" pneumatic tires or our 10" pneumatic tiller ..

Product Code: TD-171-008

40 In stock

$23.38

ATR Shaft 8mm Bore for 6 inch Tire - SB
ATR Shaft 8mm Bore for 6 inch Tire - SB

This is a single axle with a hub that mounts to our 6" pneumatic tires. It is intended to be direct ..

Product Code: TD-170-008

47 In stock

$19.71

ATR Shaft 8mm DM - 6 inch Tire
ATR Shaft 8mm DM - 6 inch Tire

This is a single axle with a hub that mounts to our 6" pneumatic tires or our 6" solid core tires. T..

Product Code: TD-173-008

44 In stock

$15.24

ATR Shaft DM for Wheelchair Motor 17mm Bore for 13 inch Traction Lug
ATR Shaft DM for Wheelchair Motor 17mm Bore for 13 inch Traction Lug

This a single axle for our 13" tiller tires. The hub is welded to a steel shaft that fits on our whe..

Product Code: TD-266-000

32 In stock

$67.86

ATR Shaft Heavy Duty for 10 inch Tire - DB
ATR Shaft Heavy Duty for 10 inch Tire - DB

This is a single axle with a hub that mounts to our 10" pneumatic tires or our 10" pneumatic tiller ..

Product Code: TD-175-000

35 In stock

$21.95

ATR Shaft Heavy Duty for 13 inch Traction Lug - 3/4
ATR Shaft Heavy Duty for 13 inch Traction Lug - 3/4

This a single axle for our 13" tiller tires. The hub is welded to a steel 3/4" diameter shaft with a..

Product Code: TD-267-000

8 In stock

$58.92

ATR Shaft Heavy Duty for 6 inch Tire - DB
ATR Shaft Heavy Duty for 6 inch Tire - DB

This is a single axle with a hub that mounts to our 6" pneumatic tires. It is intended to be chain d..

Product Code: TD-174-000

40 In stock

$21.70

ATR Shaft IG52 DB Heavy Duty for 10 inch Tire
ATR Shaft IG52 DB Heavy Duty for 10 inch Tire

This is a single axle with a hub that mounts to our 10" tiller tires. It is intended for our IG52 DB..

Product Code: TD-279-000

24 In stock

$27.00

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