50 Years Of Design Experience For High-Speed Testing Applications
COTTA manufactures uniquely-designed high-speed transmission gearboxes that are widely used in R&D and production test stands for automotive and aircraft components, and special uses such as generators, constant-speed drives and pumps. COTTA high-speed gearboxes are available as speed increasers and speed reducers for use in many non-aviation, industrial applications – from turbine reduction gears to centrifugal driers, to numerous other instances where a highly-specialized, powerful and reliable solution like our high-speed transmission gearbox is needed.
Standard High-Speed Configurations:
Built to provide you with years of high-performance service, our high-speed gearbox designs come in a variety of standard and customized designs.
SN1659 - FLEX DRIVE
- Add-on unit to other gearbox to increase top output speed
- Typically AND20006/AND200007 input & ouput
- Can be mounted horizontal or vertical offset (6 or 9 0’clock)
- “sister” units: SN1541, SN1572, SN2022, SN2052, SN2151
| Ratio Range | Nominal Rating | Max Speed | Variations | Spec Sheets |
|---|---|---|---|---|
| 1.04 to 3.737 | 350-700 hp / 140 ft-lb | 30,000 | 54 | DOWNLOAD ► |
SN1903 (413D)
- Single output, two stage increaser
- Typically AND20006/AND20007 output pad
- “sister” units: SN1580, SN2070
| Ratio Range | Nominal Rating | Max Speed | Variations | Spec Sheets |
|---|---|---|---|---|
| 8.11 to 23.52 | 300-600 hp / 270 ft-lb | 30,000 | 24 | DOWNLOAD ► |
SN1624 (315S)
- Single output, two stage increaser
- Typically AND20006/AND20007, AND20002 output pad, or shaft
- “sister” units: SN1649 (215S)
| Ratio Range | Nominal Rating | Max Speed | Variations | Spec Sheets |
|---|---|---|---|---|
| 1.86 to 7.27 | 300-600 hp / 130 ft-lb | 30,000 | 16 | DOWNLOAD ► |
SN1657
- Coaxial output, two stage increase
- Typically AND20006/AND20007 output pad
- CSD testing
| Ratio Range | Nominal Rating | Max Speed | Variations | Spec Sheets |
|---|---|---|---|---|
| 5.21 to 7.77 | 450 hp / 500 ft-lb | 15,500 | 22 | DOWNLOAD ► |
SN1678 (422S)
- Dual output, single stage increaser
- Typically AND20006/AND20007 output pads
- Dual ratio capable
- “sister” units: SN2121, SN2223 (1000 hp), SN2231 (1500 hp), SN2261 (1100 hp @ 27,000 rpm), SN2291, SN2309 (800 hp per pad @ 18,000 rpm), SN2325 (400 hp per pad, 30,000 rpm)
| Ratio Range | Nominal Rating | Max Speed | Variations | Spec Sheets |
|---|---|---|---|---|
| 1.32 to 7.70 | 500 hp (ea) / 400 ft-lb | 20,000 | 18 | DOWNLOAD ► |
SN1708 (215D)
- Single output, two stage increaser
- Typically stub shaft or AND20002 output pad
- “sister” units: SN2099 (140 hp @ 55,000 rpm), SN2102 (150-300 hp @ 30,000 rpm)
| Ratio Range | Nominal Rating | Max Speed | Variations | Spec Sheets |
|---|---|---|---|---|
| 5.94 to 15.23 | 75-200 hp / 25 ft-lb | 65,000 | 14 | DOWNLOAD ► |
SN1995
- Dual output (plus CSD), two stage increaser
- Typically AND20006/AND20007 output pad
- “sister” units: SN2279 (20K/30K), SN1677, SN1581, SN1939, SN2034 (counter-rotating heads)
| Ratio Range | Nominal Rating | Max Speed | Variations | Spec Sheets |
|---|---|---|---|---|
| 5.6 to 18.68 | 300-500 hp / 235 ft-lb | 35,000 | 24 | DOWNLOAD ► |
SN2055 (412S)
- Single output, single stage increaser
- Typically AND20006/AND20007 output pad
- “sister” units: SN1445, SN2285 (150 hp, 85,000 rpm), SN2334 (935 ft-lb@9800 rpm)
| Ratio Range | Nominal Rating | Max Speed | Variations | Spec Sheets |
|---|---|---|---|---|
| 3.06 to 6.47 | 300-600 hp / 100-275 ft-lb | 36,000 | 10 | DOWNLOAD ► |
SN2057 (315D)
- Single output, single stage increaser
- Typically stub shaft output
- “sister” units: SN2092, SN2071 (300 hp @25,000 rpm)
| Ratio Range | Nominal Rating | Max Speed | Variations | Spec Sheets |
|---|---|---|---|---|
| 7.59 to 16.83 | 300-400 hp / 120 ft-lb | 30,000 | 8 | DOWNLOAD ► |
SN2105
- Single output, single stage increaser
- Typically AND20002 output pad
- “sister” units: SN2197, SN2267
| Ratio Range | Nominal Rating | Max Speed | Variations | Spec Sheets |
|---|---|---|---|---|
| 1.31 to 5.41 | 200 hp / 130 ft-lb | 30,000 | 42 | CALL FOR INFO |
SN2153
- Single output, concentric shaft increaser
- Typically stub shaft output
- “sister” units: SN2268 (600 hp), SN2269
| Ratio Range | Nominal Rating | Max Speed | Variations | Spec Sheets |
|---|---|---|---|---|
| 3.2 to 8.47 | 170-350 hp / 30 ft-lb | 40,000 | 3 | CALL FOR INFO |
SN2219
- Single output, single stage increaser
- Typically stub shaft output
| Ratio Range | Nominal Rating | Max Speed | Variations | Spec Sheets |
|---|---|---|---|---|
| 4.38 to 5.04 | 1250-1450 hp / 580 ft-lb | 20,000 | 3 | CALL FOR INFO |
Right Angle High-Speed Units
- Typically flange mounted
- Many with optional mounting orientation
| MODEL | RATIO RANGE | NOMINAL RATING | MAX SPEED | VARIATIONS | SPEC SHEETS |
|---|---|---|---|---|---|
| HS0305 | 2.0 | 300 hp | 30,000 | 1 | DOWNLOAD ► |
| SN1645 | 1.0 to 2.0 | 300 hp | 20,000 | 3 | DOWNLOAD ► |
| SN2068 | 6.67 | 600 hp | 35,000 | 1 | DOWNLOAD ► |
| SN2023 | 3.0 | 300 hp | 12,000 | 1 | CALL FOR INFO |
| SN2036 | 3.5 | 150 hp | 31,500 | 1 | CALL FOR INFO |
| SN2109 | 1.0 | 100 hp | 30,000 | 4 | CALL FOR INFO |
| SN2223 | 1.0 | 300 hp | 18,000 | 1 | CALL FOR INFO |
| SN2284 | 5.739 | 20 hp | 8760 | 1 | CALL FOR INFO |
ISO 9001 Quality Management
Member Of The AGMA
