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Chiaravalli CH/CH double worm gearbox with motor
Chiaravalli

CH 04/08 Double Worm Gearbox (ratios 230–2760:1)

Worm Gearboxes

Two CH worm gearboxes combined — a CH 04 driving a CH 08 — for total ratios 230–2760:1 and output speeds down to 0.5 r/min. Aluminium housings, hollow output shaft with 35 mm bore, keyed; output flange versions (F / FA / FC) as the CH 08, 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 04's IEC flange (IEC 56 or 63 or 71, 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: 204.5 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 04/08: 4-pole motor at 1400 r/min on the CH 04; execution OBS unless specified.

CodeRatioMotor flangeMotor P1Output speedOutput torque
CH-04/08 R.230 56F9 230:1 IEC 56 · 9 mm shaft 0.55 kW 5.6 r/min 460 Nm
CH-04/08 R.230 63F11 230:1 IEC 63 · 11 mm shaft 0.55 kW 5.6 r/min 460 Nm
CH-04/08 R.230 71F14 230:1 IEC 71 · 14 mm shaft 0.55 kW 5.6 r/min 460 Nm
CH-04/08 R.300 56F9 300:1 IEC 56 · 9 mm shaft 0.55 kW 4.7 r/min 490 Nm
CH-04/08 R.300 63F11 300:1 IEC 63 · 11 mm shaft 0.55 kW 4.7 r/min 490 Nm
CH-04/08 R.300 71F14 300:1 IEC 71 · 14 mm shaft 0.55 kW 4.7 r/min 490 Nm
CH-04/08 R.400 56F9 400:1 IEC 56 · 9 mm shaft 0.55 kW 3.5 r/min 490 Nm
CH-04/08 R.400 63F11 400:1 IEC 63 · 11 mm shaft 0.55 kW 3.5 r/min 490 Nm
CH-04/08 R.400 71F14 400:1 IEC 71 · 14 mm shaft 0.55 kW 3.5 r/min 490 Nm
CH-04/08 R.525 56F9 525:1 IEC 56 · 9 mm shaft 0.37 kW 2.7 r/min 490 Nm
CH-04/08 R.525 63F11 525:1 IEC 63 · 11 mm shaft 0.37 kW 2.7 r/min 490 Nm
CH-04/08 R.525 71F14 525:1 IEC 71 · 14 mm shaft 0.37 kW 2.7 r/min 490 Nm
CH-04/08 R.700 56F9 700:1 IEC 56 · 9 mm shaft 0.37 kW 2 r/min 490 Nm
CH-04/08 R.700 63F11 700:1 IEC 63 · 11 mm shaft 0.37 kW 2 r/min 490 Nm
CH-04/08 R.700 71F14 700:1 IEC 71 · 14 mm shaft 0.37 kW 2 r/min 490 Nm
CH-04/08 R.920 56F9 920:1 IEC 56 · 9 mm shaft 0.25 kW 1.5 r/min 490 Nm
CH-04/08 R.920 63F11 920:1 IEC 63 · 11 mm shaft 0.25 kW 1.5 r/min 490 Nm
CH-04/08 R.920 71F14 920:1 IEC 71 · 14 mm shaft 0.25 kW 1.5 r/min 490 Nm
CH-04/08 R.1380 56F9 1380:1 IEC 56 · 9 mm shaft 0.18 kW 1.2 r/min 490 Nm
CH-04/08 R.1380 63F11 1380:1 IEC 63 · 11 mm shaft 0.18 kW 1.2 r/min 490 Nm
CH-04/08 R.1380 71F14 1380:1 IEC 71 · 14 mm shaft 0.18 kW 1.2 r/min 490 Nm
CH-04/08 R.1840 56F9 1840:1 IEC 56 · 9 mm shaft 0.18 kW 0.93 r/min 490 Nm
CH-04/08 R.1840 63F11 1840:1 IEC 63 · 11 mm shaft 0.18 kW 0.93 r/min 490 Nm
CH-04/08 R.1840 71F14 1840:1 IEC 71 · 14 mm shaft 0.18 kW 0.93 r/min 490 Nm
CH-04/08 R.2116 56F9 2116:1 IEC 56 · 9 mm shaft 0.12 kW 0.67 r/min 490 Nm
CH-04/08 R.2116 63F11 2116:1 IEC 63 · 11 mm shaft 0.12 kW 0.67 r/min 490 Nm
CH-04/08 R.2116 71F14 2116:1 IEC 71 · 14 mm shaft 0.12 kW 0.67 r/min 490 Nm
CH-04/08 R.2760 56F9 2760:1 IEC 56 · 9 mm shaft 0.12 kW 0.5 r/min 490 Nm
CH-04/08 R.2760 63F11 2760:1 IEC 63 · 11 mm shaft 0.12 kW 0.5 r/min 490 Nm
CH-04/08 R.2760 71F14 2760:1 IEC 71 · 14 mm shaft 0.12 kW 0.5 r/min 490 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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