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Chiaravalli CHML 040 worm gearbox with torque limiter (b2b.chiaravalli.com product image)
Chiaravalli

CHML 040 Worm Gearbox with Torque Limiter (Ø18 mm output shaft)

Worm Gearboxes

CHML 040 — the CHM 040 worm gearbox with a built-in torque limiter on the output: when the load exceeds the setting the limiter slips and protects the gearbox and the machine. The limiter runs in the oil bath and is maintenance free; it is adjusted with the external ring nut to suit your application. Hollow output shaft with the standard 18 mm bore; gearbox dimensions are those of the CHM 040, the ring nut excluded (limiter dimensions: L 55, DR 45, R M30x1,5, D 18, W 26 mm). Aluminium housing, filled for life with synthetic oil — no oil changes, no maintenance. Supplied in the universal position — it can be mounted in any orientation.

Supplied without motor. Fits IEC 56 or 63 or 71 motors as the CHM 040.

How to pick from the table: the ratio sets the output speed (shown for a 4-pole motor at 1400 r/min); choose the flange that matches your motor. For the rated powers and torques of the gear train see the CHM 040 page — the limiter is set below them to the torque your machine can take; tell us the setting you need when ordering.

Product Configuration

Select a row to add it to your quote

CHML 040: gear train and motor flanges as the CHM 040; output speed at 1400 r/min input.

CodeRatioMotor flangeOutput speed
CHML-040 R.7.5 63F11 7.5:1 IEC 63 · 11 mm shaft 186.7 r/min
CHML-040 R.7.5 71F14 7.5:1 IEC 71 · 14 mm shaft 186.7 r/min
CHML-040 R.10 63F11 10:1 IEC 63 · 11 mm shaft 140 r/min
CHML-040 R.10 71F14 10:1 IEC 71 · 14 mm shaft 140 r/min
CHML-040 R.15 63F11 15:1 IEC 63 · 11 mm shaft 93.3 r/min
CHML-040 R.15 71F14 15:1 IEC 71 · 14 mm shaft 93.3 r/min
CHML-040 R.20 63F11 20:1 IEC 63 · 11 mm shaft 70 r/min
CHML-040 R.20 71F14 20:1 IEC 71 · 14 mm shaft 70 r/min
CHML-040 R.25 63F11 25:1 IEC 63 · 11 mm shaft 56 r/min
CHML-040 R.25 71F14 25:1 IEC 71 · 14 mm shaft 56 r/min
CHML-040 R.30 63F11 30:1 IEC 63 · 11 mm shaft 46.7 r/min
CHML-040 R.30 71F14 30:1 IEC 71 · 14 mm shaft 46.7 r/min
CHML-040 R.40 63F11 40:1 IEC 63 · 11 mm shaft 35 r/min
CHML-040 R.40 71F14 40:1 IEC 71 · 14 mm shaft 35 r/min
CHML-040 R.50 56F9 50:1 IEC 56 · 9 mm shaft 28 r/min
CHML-040 R.50 63F11 50:1 IEC 63 · 11 mm shaft 28 r/min
CHML-040 R.60 56F9 60:1 IEC 56 · 9 mm shaft 23.3 r/min
CHML-040 R.60 63F11 60:1 IEC 63 · 11 mm shaft 23.3 r/min
CHML-040 R.80 56F9 80:1 IEC 56 · 9 mm shaft 17.5 r/min
CHML-040 R.80 63F11 80:1 IEC 63 · 11 mm shaft 17.5 r/min
CHML-040 R.100 56F9 100:1 IEC 56 · 9 mm shaft 14 r/min
CHML-040 R.100 63F11 100:1 IEC 63 · 11 mm shaft 14 r/min

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.

Torque limiter

The limiter sits in the output hub: above the set torque it slips instead of passing the overload on to the gears or the driven machine — useful on conveyors that can jam, indexing drives and anything a stall would damage. Set it with the ring nut (R thread) to your application; made in three sizes, 040, 050 and 063.

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