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Chiaravalli CH/CH double worm gearbox with motor
Chiaravalli

CH 03/05 Double Worm Gearbox (ratios 240–2700:1)

Worm Gearboxes

Two CH worm gearboxes combined — a CH 03 driving a CH 05 — for total ratios 240–2700:1 and output speeds down to 0.5 r/min. Aluminium housings, hollow output shaft with 25 mm bore, keyed; output flange versions (F / FA / FC) as the CH 05, or the group can be fixed on its feet (CH/CH) or swing on the output (CH/CH..P). The motor bolts to the CH 03's IEC flange (IEC 56 or 63, B5 or B14). The execution (OAD, OAS, OBD, OBS, VAD, VAS, VBD, VBS) sets where the first gear sits on the second — OBS unless you specify otherwise. Centre distance Y between the two input axes: 125.5 mm. Filled for life with synthetic oil — no oil changes, no maintenance; aluminium housing.

Supplied without motor. The first gear can also be ordered as a CHR (input shaft) — ask us.

How to pick from the table: with a standard 4-pole motor (1400 r/min) the total ratio sets the output speed; P1 is the motor power the catalogue pairs with the row and the output torque is at that power. Where the printed power is more than the gear allows (row note), choose by torque. Other ratio combinations of the two single gears are possible on request.

Product Configuration

Select a row to add it to your quote

CH 03/05: 4-pole motor at 1400 r/min on the CH 03; execution OBS unless specified.

CodeRatioMotor flangeMotor P1Output speedOutput torque
CH-03/05 R.240 56F9 240:1 IEC 56 · 9 mm shaft 0.12 kW 5.8 r/min 77 Nm
CH-03/05 R.240 63F11 240:1 IEC 63 · 11 mm shaft 0.12 kW 5.8 r/min 77 Nm
CH-03/05 R.315 56F9 315:1 IEC 56 · 9 mm shaft 0.12 kW 4.4 r/min 90 Nm
CH-03/05 R.315 63F11 315:1 IEC 63 · 11 mm shaft 0.12 kW 4.4 r/min 90 Nm
CH-03/05 R.420 56F9 420:1 IEC 56 · 9 mm shaft 0.09 kW 3.3 r/min 90 Nm
CH-03/05 R.420 63F11 420:1 IEC 63 · 11 mm shaft 0.09 kW 3.3 r/min 90 Nm
CH-03/05 R.540 56F9 540:1 IEC 56 · 9 mm shaft 0.09 kW 2.6 r/min 90 Nm
CH-03/05 R.540 63F11 540:1 IEC 63 · 11 mm shaft 0.09 kW 2.6 r/min 90 Nm
CH-03/05 R.720 56F9 720:1 IEC 56 · 9 mm shaft 0.09 kW 1.9 r/min 90 Nm
CH-03/05 R.720 63F11 720:1 IEC 63 · 11 mm shaft 0.09 kW 1.9 r/min 90 Nm
CH-03/05 R.900 56F9 900:1 IEC 56 · 9 mm shaft 0.09 kW 1.6 r/min 90 Nm
CH-03/05 R.900 63F11 900:1 IEC 63 · 11 mm shaft 0.09 kW 1.6 r/min 90 Nm
CH-03/05 R.1120 56F9 1120:1 IEC 56 · 9 mm shaft 0.09 kW 1.3 r/min 90 Nm
CH-03/05 R.1120 63F11 1120:1 IEC 63 · 11 mm shaft 0.09 kW 1.3 r/min 90 Nm
CH-03/05 R.1440 56F9 1440:1 IEC 56 · 9 mm shaft 0.09 kW 0.9 r/min 90 Nm
CH-03/05 R.1440 63F11 1440:1 IEC 63 · 11 mm shaft 0.09 kW 0.9 r/min 90 Nm
CH-03/05 R.2160 56F9 2160:1 IEC 56 · 9 mm shaft 0.09 kW 0.6 r/min 90 Nm
CH-03/05 R.2160 63F11 2160:1 IEC 63 · 11 mm shaft 0.09 kW 0.6 r/min 90 Nm
CH-03/05 R.2700 56F9 2700:1 IEC 56 · 9 mm shaft 0.09 kW 0.5 r/min 90 Nm
CH-03/05 R.2700 63F11 2700:1 IEC 63 · 11 mm shaft 0.09 kW 0.5 r/min 90 Nm

Product Information

Motor pole count

All table figures assume a 4-pole motor (1400 r/min input) — the standard choice for most applications. A 2-pole motor (2800 r/min) doubles the output speed and a 6-pole motor (900 r/min) reduces it, and the power and torque ratings change with them — if you're running anything other than 4-pole, contact us and we'll size it for you.

Reading the table

Each row is one total ratio: output speed at 1400 r/min in, the catalogue's motor power P1 and the output torque at that power. The ratios listed are the most frequently requested; multiple other combinations of the two single gears' ratios can be made.

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