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Chiaravalli

CHM 050/110 Double Worm Gearbox (ratios 300–2400:1)

Worm Gearboxes

Two CHM worm gearboxes combined — a CHM 050 driving a CHM 110 — for total ratios 300–2400:1 and output speeds down to 0.6 r/min. Cast iron second-stage housing, aluminium first stage, hollow output shaft with 42 mm bore, keyed; optional output flanges as the CHM 110. The motor bolts to the CHM 050's IEC flange (IEC 63 or 71 or 80). The execution (OAD, OAS, OBD, OBS, VAD, VAS, VBD, VBS) sets where the first gear sits on the second — OBS unless you specify otherwise; the mounting position refers to the second gear. Supplied for the B3 mounting position — tell us if you need a different orientation (see the mounting-position drawing). Lubricated with mineral oil; the oil quantity is set for the mounting position, so the orientation matters when ordering.

Supplied without motor. The first gear can also be ordered as a CHMR (input shaft) and the second as a CHME (free input shaft end) — 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

CHM 050/110: 4-pole motor at 1400 r/min on the CHM 050; execution OBS unless specified.

CodeRatioMotor flangeMotor P1Output speedOutput torque Weight
CHM-050/110 R.300 63F11 300:1 IEC 63 · 11 mm shaft 0.75 kW 4.7 r/min 871 Nm 39.2 kg
CHM-050/110 R.300 71F14 300:1 IEC 71 · 14 mm shaft 0.75 kW 4.7 r/min 871 Nm 39.2 kg
CHM-050/110 R.300 80F19 300:1 IEC 80 · 19 mm shaft 0.75 kW 4.7 r/min 871 Nm 39.2 kg
CHM-050/110 R.400 63F11 400:1 IEC 63 · 11 mm shaft 0.75 kW 3.5 r/min 1013 Nm 39.2 kg
CHM-050/110 R.400 71F14 400:1 IEC 71 · 14 mm shaft 0.75 kW 3.5 r/min 1013 Nm 39.2 kg
CHM-050/110 R.400 80F19 400:1 IEC 80 · 19 mm shaft 0.75 kW 3.5 r/min 1013 Nm 39.2 kg
CHM-050/110 R.500 63F11 500:1 IEC 63 · 11 mm shaft 0.55 kW 2.8 r/min 984 Nm 39.2 kg
CHM-050/110 R.500 71F14 500:1 IEC 71 · 14 mm shaft 0.55 kW 2.8 r/min 984 Nm 39.2 kg
CHM-050/110 R.500 80F19 500:1 IEC 80 · 19 mm shaft 0.55 kW 2.8 r/min 984 Nm 39.2 kg
CHM-050/110 R.600 63F11 600:1 IEC 63 · 11 mm shaft 0.55 kW 2.3 r/min 1062 Nm 39.2 kg
CHM-050/110 R.600 71F14 600:1 IEC 71 · 14 mm shaft 0.55 kW 2.3 r/min 1062 Nm 39.2 kg
CHM-050/110 R.600 80F19 600:1 IEC 80 · 19 mm shaft 0.55 kW 2.3 r/min 1062 Nm 39.2 kg
CHM-050/110 R.750 63F11 750:1 IEC 63 · 11 mm shaft 0.55 kW 1.9 r/min 1128 Nm 39.2 kg
CHM-050/110 R.750 71F14 750:1 IEC 71 · 14 mm shaft 0.55 kW 1.9 r/min 1128 Nm 39.2 kg
CHM-050/110 R.750 80F19 750:1 IEC 80 · 19 mm shaft 0.55 kW 1.9 r/min 1128 Nm 39.2 kg
CHM-050/110 R.900 63F11 900:1 IEC 63 · 11 mm shaft 0.37 kW 1.6 r/min 1079 Nm 39.2 kg
CHM-050/110 R.900 71F14 900:1 IEC 71 · 14 mm shaft 0.37 kW 1.6 r/min 1079 Nm 39.2 kg
CHM-050/110 R.900 80F19 900:1 IEC 80 · 19 mm shaft 0.37 kW 1.6 r/min 1079 Nm 39.2 kg
CHM-050/110 R.1200 63F11 1200:1 IEC 63 · 11 mm shaft 0.25 kW 1.2 r/min 943 Nm 39.2 kg
CHM-050/110 R.1200 71F14 1200:1 IEC 71 · 14 mm shaft 0.25 kW 1.2 r/min 943 Nm 39.2 kg
CHM-050/110 R.1200 80F19 1200:1 IEC 80 · 19 mm shaft 0.25 kW 1.2 r/min 943 Nm 39.2 kg
CHM-050/110 R.1500 63F11 1500:1 IEC 63 · 11 mm shaft 0.25 kW 0.9 r/min 1064 Nm 39.2 kg
CHM-050/110 R.1500 71F14 1500:1 IEC 71 · 14 mm shaft 0.25 kW 0.9 r/min 1064 Nm 39.2 kg
CHM-050/110 R.1500 80F19 1500:1 IEC 80 · 19 mm shaft 0.25 kW 0.9 r/min 1064 Nm 39.2 kg
CHM-050/110 R.1800 63F11 1800:1 IEC 63 · 11 mm shaft 0.25 kW 0.8 r/min 1075 Nm 39.2 kg
CHM-050/110 R.1800 71F14 1800:1 IEC 71 · 14 mm shaft 0.25 kW 0.8 r/min 1075 Nm 39.2 kg
CHM-050/110 R.1800 80F19 1800:1 IEC 80 · 19 mm shaft 0.25 kW 0.8 r/min 1075 Nm 39.2 kg
CHM-050/110 R.2400 63F11 2400:1 IEC 63 · 11 mm shaft 0.18 kW 0.6 r/min 1001 Nm 39.2 kg
CHM-050/110 R.2400 71F14 2400:1 IEC 71 · 14 mm shaft 0.18 kW 0.6 r/min 1001 Nm 39.2 kg
CHM-050/110 R.2400 80F19 2400:1 IEC 80 · 19 mm shaft 0.18 kW 0.6 r/min 1001 Nm 39.2 kg

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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