Injection-Molded Sprocket Set 8T GM
This four-pack of 8-tooth injection-molded sprockets comes with two idler sprockets (with 1/4" holes) and two sprockets with 7-mm holes for use with for use with Solarbotics GM2, GM3, GM8, and GM9 gearboxes. The track links and pins are sold separately.
![]() |
These 8-tooth, injection-molded sprockets are made to work with the rugged miniature tank tracks. This set comes with four sprockets made from sturdy, black ABS plastic: two sprockets for mounting on the 7-mm shafts of Solarbotics GM2, GM3, GM8, and GM9 gearboxes, and two idler sprockets with 1/4" holes that you can mount using shoulder bolts.
The diameter of the sprocket by itself is 1.5". Once the rugged miniature tank tracks are around the sprocket, the total diameter is roughly 1.77".
![]() |
Miniature Track Link and Pin |
![]() |
Shoulder Bolt with Flat Washer and Hex Nut |
![]() |
Solarbotics GM2 224:1 Gear Motor Offset Output |
Manufacturer BTC Korporacja sp. z o. o. Lwowska 5 05-120 Legionowo Poland sprzedaz@kamami.pl 22 767 36 20
Responsible person BTC Korporacja sp. z o. o. Lwowska 5 05-120 Legionowo Poland sprzedaz@kamami.pl 22 767 36 20
A pair of 66x10mm silicone tires compatible with Pololu 80×10mm/90×10mm wheels. Pololu 3410
No product available!
A set of two Pololu wheels measuring 32x7mm in black. Fits D-shaped shaft with a diameter of 3mm. Pololu 1087
A set of two Pololu wheels with dimensions 40x7mm in white. Intended for Micro servos with 4.8mm diameter spline and 20 teeth. Pololu 4909
A set of two Pololu wheels measuring 43x19 mm in white. Fits D-shaped shaft with a diameter of 3 mm. Pololu 1090
A pair of 50x8mm silicone tires compatible with Pololu 60×8mm/70×8mm wheels. Pololu 3409
Black polyurethane scooter/skate wheel 144 × 29 mm, works with standard 608 bearings. Pololu 3281
No product available!
A set of two 90x10mm yellow Pololu wheels. Fits D-shaped shaft with a diameter of 3mm. Pololu 1437
A set of two 90x10mm red Pololu wheels. Fits D-shaped shaft with a diameter of 3mm. Pololu 1436
No product available!
A set of two Pololu wheels with dimensions 40x7mm in red. Intended for Micro servos with 4.8mm diameter spline and 20 teeth. Pololu 4906
A set of two 80x10mm yellow Pololu wheels. Fits D-shaped shaft with a diameter of 3mm. Pololu 1432
A pair of 32.5 x 6.6mm silicone tires compatible with Pololu 40x7mm wheels. Pololu 3408
A set of two Pololu wheels with dimensions 40x7mm in black. Intended for Micro servos with 4.8mm diameter spline and 20 teeth. Pololu 4905
No product available!
A set of two 90x10mm blue Pololu wheels. Fits D-shaped shaft with a diameter of 3mm. Pololu 1438
A pair of 32x7mm silicone tires compatible with Pololu 32x7mm wheels. Pololu 3407
A set of two Pololu wheels with dimensions 90x10mm in white. Intended for Standard servos with 5.8mm diameter spline and 25 teeth. Pololu 4939
Injection-Molded Sprocket Set 8T GM