| Part No. | Description |
| 12mm |
| RA-12W |
Gearhead, Ratio 1:10 ~ 1:298 |
| RA-12W 01 Type |
3V & 6V DC Motor 46 rpm ~ 1500 rpm |
| 20mm |
| RA-18 (RA-20) |
Gearhead, Ratio 1:10 ~ 1:866 |
| RA-20GM (01&02) |
3V & 6V DC Motor 8.5 rpm ~ 735 rpm |
| RA-20GM (03&04) |
12V & 24V DC Motor 8.6 rpm ~ 720 rpm |
| 25mm |
| RA-25 |
Gearhead, Ratio 1:6~1:1153 |
| RA-27GM (02&03 ) |
12V & 24V DC Motor 3.6rpm~340rpm |
| RA-27GM (04&05) |
12V & 24V DC Motor 4.0rpm~420rpm |
| 37mm |
| RA-35C |
Gearhead, Ratio 1:6~1:5625 |
| RA-37GM (7&9) |
12V & 24V DC Motor 1rpm~805rpm |
| RA-37GM (11&12) |
12V & 24V DC Motor 1rpm~800rpm |
| RA-37GM (13&14) |
12V & 24V DC Motor 1.1rpm~986rpm |
| 30mm |
| RB-30 |
Gearhead, Ratio 1:20~1:1000 |
| RB-30GM (02&03) |
12V & 24V DC Motor 6.3rpm~258rpm |
| RB-30GM (04&05) |
12V & 24V DC Motor 3.2rpm~142rpm |
| 37mm |
| RB-35C |
Gearhead, Ratio 1:6~1:3000 |
| RB-37GM (7&9) |
12V & 24V DC Motor 2rpm~532rpm |
| RB-37GM (11&12) |
12V & 24V DC Motor 2rpm~490rpm |
| RB-37GM (13&14) |
12V & 24V DC Motor 2rpm~616rpm |
| RB-37GM (21&22) |
12V & 24V DC Motor 6rpm~490rpm |
| RB-37GM (51) |
Bipolar, Ratio 1:6 ~ 1:3000, Stepping Motors |
| RB-37GM (52) |
Unipolar, Ratio 1:6 ~ 1:3000, Stepping Motors |
| RB-37B |
Gearhead, Ratio 1:6~1:3000, Helical gear |
| RB-37BGM (7&9) |
12V & 24V DC Motor 2.0 rpm~532 rpm |
| RB-35P |
Gearhead, Ratio 1:18~1:3000,Powder Metal gear & Plastic gear |
| RB-37PGM (11&12) |
12V & 24V DC Motor 2.1rpm~278rpm |
| RB-37PGM (21&22) |
12V & 24V DC Motor 6.2rpm~278rpm |
| RB-37S |
Gearhead, Ratio 1:18~1:3000,Powder Metal gear & Plastic gear |
| RB-37SGM (11&12) |
12V & 24V DC Motor 2.1rpm~278rpm |
| 43mm |
| RB-40 |
Gearhead, Helical Gear, Ratio 1:10~1:500 |
| RB-40GM (03&04) |
12V & 24V DC Motor 11.8rpm~530rpm |