CHM 063/130 Double Worm Gearbox (ratios 300–2400:1)

Two CHM worm gearboxes combined — a CHM 063 driving a CHM 130 — 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 45 mm bore, keyed; optional output flanges as the CHM 130. The motor bolts to the CHM 063's IEC flange (IEC 71 or 80 or 90). 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.