Kahekordsed ketirattad kahe üksiku keti jaoks vastavalt Ameerika standardile
Ühe tüüpi C-teras
| Ei. Hambad | Number | De | DI | Dm | A | Kaal. Naelad. (Ligikaudu) |
| |
| Min | Maks. | |||||||
| 12 | 40C12 | 2.170 | 1/2 | 1 | 139/64 | 11/2 | .75 | |
| 13 | 40C13 | 2.330 | 1/2 | 1/16 | 13/4 | 11/2 | .94 | |
| 14 | 40C14 | 2.490 | 1/2 | 1/8 | 111/16 | 11/2 | .91 | |
| 15 | 40C15 | 2.650 | 1/2 | 1/4 | 17/8 | 11/2 | 1.19 | |
| 16 | 40C16 | 2.810 | 1/2 | 3/8 | 2 | 11/2 | 1.34 | |
| 17 | 40C17 | 2.980 | 5/8 | 7/16 | 21/8 | 11/2 | 1.5 | |
| 18 | 40C18 | 3.140 | 5/8 | 1/2 | 25/16 | 11/2 | 1.8 | |
★ Rummul on süvistatud soon keti vaba ruumi tagamiseks.
Topelt-ühekordne A-tüüpi teras
| Ei. Hambad | Number | De | Dp | Tüüp | DI | L | c | E | B1 | Kaal (Ligikaudu) |
| |
| Min | Maks. | |||||||||||
| 15 | DS40A15 | 2.650 | 2.405 | A | 1/2 | 11/4 | 113/32 | 11/8 | 113/16 | .284 | 1.2 | |
| 16 | DS40A16 | 2.810 | 2.563 | A | 1/2 | 11/4 | 113/32 | 11/8 | 2 | .284 | 1.4 | |
| 17 | DS40A17 | 2.980 | 2.721 | A | 1/2 | 15/16 | 113/32 | 11/8 | 21/8 | .284 | 1.6 | |
| 18 | DS40A18 | 3.140 | 2.879 | A | 1/2 | 11/2 | 113/32 | 11/8 | 25/16 | .284 | 1.8 | |
| 19 | DS40A19 | 3.300 | 3.038 | A | 5/8 | 111/16 | 113/32 | 11/8 | 21/2 | .284 | 2.2 | |
| 20 | DS40A20 | 3.460 | 3.196 | A | 5/8 | 13/4 | 113/32 | 11/8 | 25/8 | .284 | 2.6 | |
| 21 | DS40A21 | 3.620 | 3.355 | A | 5/8 | 13/4 | 113/32 | 11/8 | 225/32 | .284 | 2.9 | |
| 22 | DS40A22 | 3.780 | 3.513 | A | 5/8 | 113/16 | 113/32 | 11/8 | 215/16 | .284 | 3.0 | |
| 23 | DS40A23 | 3940 | 3.672 | A | 5/8 | 21/16 | 113/32 | 11/8 | 23/32 | .284 | 3.5 | |
| 24 | DS40A24 | 4.100 | 3.831 | A | 5/8 | 21/4 | 113/32 | 11/8 | 217/64 | .284 | 4.0 | |
Topelt ühe koonusega puks-teras
| Ei. Hambad | Number | Puksi suurus | De | Dp | D1 | Tüüp | L1 | c | E | L2 | B1 | Kaal Ainult velg |
| |
| Min | Maks. | |||||||||||||
| 19 | DS40ATB19H | 1215 | 3.300 | 3.308 | 1/2 | 1/4 | A | 113/32 | 11/8 | 21/2 | 11/2 | .284 | 1.1 | |
| 20 | DS40ATB20H | 1215 | 3.460 | 3.196 | 1/2 | 1/4 | A | 113/32 | 11/8 | 25/8 | 11/2 | .284 | 1.3 | |
| 21 | DS40ATB21H | 1615. aasta | 3.620 | 3.355 | 1/2 | 5/8 | A | 113/32 | 11/8 | 225/32 | 11/2 | .284 | 1.3 | |
| 23 | DS40ATB23H | 1615. aasta | 3.940 | 3.672 | 1/2 | 5/8 | A | 113/32 | 11/8 | 23/32 | 11/2 | .284 | 1.5 | |
| 24 | DS40ATB24H | 1615. aasta | 4.100 | 3.831 | 1/2 | 5/8 | A | 113/32 | 11/8 | 217/64 | 11/2 | .284 | 1.7 | |
Topeltketid on konstrueeritud kahe üheahelalise rullketiga keti vedamiseks, sellest ka nimetus "topeltketid". Tavaliselt on need ketirattad A-tüüpi, kuid kliendi soovil on saadaval nii koonuspuksidega kui ka QD-tüüpi ketirattad. Meie topeltketid on valmistatud karastatud hammastega ja neil on originaalvärvi või must oksiidkate, mis tagab parema jõudluse ja kerge korrosioonikindluse. Topeltkettide standardsuurused jäävad vahemikku ANSI #40 - #80/DIN06B-16B, kuid soovi korral saab toota ka lisasuurusi. Oluline on märkida, et kuigi need ketirattad on topeltketid, ei ole need kaheahelalised rullketid.
