Skip to content
Menu
Chiaravalli CH-G D 403 shaft mounted gear unit (chiaravalli.com product image)
Chiaravalli

CH-G D 403 Shaft Mounted Gear Unit (Ø40 mm hollow output shaft)

Cast Iron Gearboxes CH-G

CH-G D 403 parallel shaft mounted gear unit — Chiaravalli's cast iron series: three-stage, size 40, ratios 67.77:1 to 360.25:1. Hollow output shaft Ø40 mm H7 (D version; the M version has a solid shaft). Made to order: the catalogue lists every D/M version (B14 or B5 flange, KS shrink disc, LT rubber buffer, Ç fixing element, M solid shaft) as available on request — ask us for the lead time. Backstop device available on request (specify the free direction of rotation). PAM motor input for IEC 71, 80, 90, 100, 112 motors.

Supplied without motor. You are choosing the gear unit with its PAM motor adapter — ask us to quote a suitable motor together with it if you'd like both.

How to pick from the table: with a standard 4-pole motor (1400 r/min) the ratio sets the output speed — e.g. ratio 360.25:1 gives 4 r/min at the output shaft. Each row shows the catalogue's maximum output torque (M2max at service factor 1) and the largest 4-pole motor that reaches it (P1max, 0.42 to 2.26 kW on this size). Choose the row whose output speed and torque match your application, then the flange that matches your motor (the frame size is on the motor's nameplate — only the frames the catalogue lists for that ratio are offered). The Motor column lists the 4-pole motors that fit that flange — pick yours and the output torque and service factor update to match. FR1 / FR2 are the permissible radial loads on the input and output shafts. More in the Selection Guide tab below.

Mounting position M1 is standard — specify yours when ordering (see the mounting-positions image). Cast iron housing.

Product Configuration

Select a row to add it to your quote

Code RatioMotor flangeMotorOutput speedOutput torqueService factorRadial load FR1Radial load FR2GRRadial load FR2 Weight
CH-G D403 360.25 PAM71 360.25:1 IEC 71 · 14 mm shaft 0.37 kW 3.9 r/min 881 Nm 1.14 2.9 kN 18 kN 7.2 kN 34.0 kg
CH-G D403 360.25 PAM80 360.25:1 IEC 80 · 19 mm shaft 0.55 kW 3.9 r/min 1310 Nm 0.76 2.9 kN 18 kN 7.2 kN 37.0 kg
CH-G D403 360.25 PAM90 360.25:1 IEC 90 · 24 mm shaft 1.1 kW 3.9 r/min 2619 Nm 0.38 2.9 kN 18 kN 7.2 kN 37.0 kg
CH-G D403 315.51 PAM71 315.51:1 IEC 71 · 14 mm shaft 0.37 kW 4.4 r/min 771 Nm 1.3 2.9 kN 18 kN 7.2 kN 34.0 kg
CH-G D403 315.51 PAM80 315.51:1 IEC 80 · 19 mm shaft 0.55 kW 4.4 r/min 1146 Nm 0.87 2.9 kN 18 kN 7.2 kN 37.0 kg
CH-G D403 315.51 PAM90 315.51:1 IEC 90 · 24 mm shaft 1.1 kW 4.4 r/min 2292 Nm 0.44 2.9 kN 18 kN 7.2 kN 37.0 kg
CH-G D403 292.09 PAM71 292.09:1 IEC 71 · 14 mm shaft 0.37 kW 4.8 r/min 712 Nm 1.41 2.9 kN 18 kN 7.2 kN 34.0 kg
CH-G D403 292.09 PAM80 292.09:1 IEC 80 · 19 mm shaft 0.55 kW 4.8 r/min 1058 Nm 0.95 2.9 kN 18 kN 7.2 kN 37.0 kg
CH-G D403 292.09 PAM90 292.09:1 IEC 90 · 24 mm shaft 1.1 kW 4.8 r/min 2115 Nm 0.47 2.9 kN 18 kN 7.2 kN 37.0 kg
CH-G D403 250.44 PAM71 250.44:1 IEC 71 · 14 mm shaft 0.55 kW 5.6 r/min 902 Nm 1.11 2.9 kN 18 kN 7.2 kN 34.0 kg
CH-G D403 250.44 PAM80 250.44:1 IEC 80 · 19 mm shaft 0.55 kW 5.6 r/min 902 Nm 1.11 2.9 kN 18 kN 7.2 kN 37.0 kg
CH-G D403 250.44 PAM90 250.44:1 IEC 90 · 24 mm shaft 1.1 kW 5.6 r/min 1803 Nm 0.55 2.9 kN 18 kN 7.2 kN 37.0 kg
CH-G D403 203.06 PAM71 203.06:1 IEC 71 · 14 mm shaft 0.55 kW 6.9 r/min 733 Nm 1.36 2.9 kN 18 kN 7.2 kN 34.0 kg
CH-G D403 203.06 PAM80 203.06:1 IEC 80 · 19 mm shaft 0.75 kW 6.9 r/min 1000 Nm 1 2.9 kN 18 kN 7.2 kN 37.0 kg
CH-G D403 203.06 PAM90 203.06:1 IEC 90 · 24 mm shaft 1.1 kW 6.9 r/min 1467 Nm 0.68 2.9 kN 18 kN 7.2 kN 37.0 kg
CH-G D403 184.83 PAM71 184.83:1 IEC 71 · 14 mm shaft 0.55 kW 7.6 r/min 671 Nm 1.49 2.9 kN 18 kN 7.2 kN 34.0 kg
CH-G D403 184.83 PAM80 184.83:1 IEC 80 · 19 mm shaft 0.75 kW 7.6 r/min 915 Nm 1.09 2.9 kN 18 kN 7.2 kN 37.0 kg
CH-G D403 184.83 PAM90 184.83:1 IEC 90 · 24 mm shaft 1.1 kW 7.6 r/min 1341 Nm 0.75 2.9 kN 18 kN 7.2 kN 37.0 kg
CH-G D403 158.93 PAM71 158.93:1 IEC 71 · 14 mm shaft 0.55 kW 8.8 r/min 573 Nm 1.75 2.8 kN 18 kN 7.2 kN 34.0 kg
CH-G D403 158.93 PAM80 158.93:1 IEC 80 · 19 mm shaft 0.75 kW 8.8 r/min 781 Nm 1.28 2.8 kN 18 kN 7.2 kN 37.0 kg
CH-G D403 158.93 PAM90 158.93:1 IEC 90 · 24 mm shaft 1.1 kW 8.8 r/min 1146 Nm 0.87 2.8 kN 18 kN 7.2 kN 37.0 kg
CH-G D403 128.86 PAM71 128.86:1 IEC 71 · 14 mm shaft 0.55 kW 10.9 r/min 462 Nm 2.16 2.8 kN 18 kN 7.2 kN 34.0 kg
CH-G D403 128.86 PAM80 128.86:1 IEC 80 · 19 mm shaft 1.1 kW 10.9 r/min 924 Nm 1.08 2.8 kN 18 kN 7.2 kN 37.0 kg
CH-G D403 128.86 PAM90 128.86:1 IEC 90 · 24 mm shaft 1.1 kW 10.9 r/min 924 Nm 1.08 2.8 kN 18 kN 7.2 kN 37.0 kg
CH-G D403 117.3 PAM71 117.3:1 IEC 71 · 14 mm shaft 0.55 kW 11.9 r/min 423 Nm 2.36 2.8 kN 18 kN 7.2 kN 34.0 kg
CH-G D403 117.3 PAM80 117.3:1 IEC 80 · 19 mm shaft 1.1 kW 11.9 r/min 846 Nm 1.18 2.8 kN 18 kN 7.2 kN 37.0 kg
CH-G D403 117.3 PAM90 117.3:1 IEC 90 · 24 mm shaft 1.1 kW 11.9 r/min 846 Nm 1.18 2.8 kN 18 kN 7.2 kN 37.0 kg
CH-G D403 91.83 PAM80 91.83:1 IEC 80 · 19 mm shaft 1.1 kW 15.2 r/min 659 Nm 1.52 2.7 kN 18 kN 7.2 kN 37.0 kg
CH-G D403 91.83 PAM90 91.83:1 IEC 90 · 24 mm shaft 1.5 kW 15.2 r/min 898 Nm 1.11 2.7 kN 18 kN 7.2 kN 37.0 kg
CH-G D403 91.83 PAM100 91.83:1 IEC 100 · 28 mm shaft 2.2 kW 15.2 r/min 1317 Nm 0.76 2.7 kN 18 kN 7.2 kN 39.0 kg
CH-G D403 91.83 PAM112 91.83:1 IEC 112 · 28 mm shaft 4 kW 15.2 r/min 2395 Nm 0.42 2.7 kN 18 kN 7.2 kN 39.0 kg
CH-G D403 74.45 PAM80 74.45:1 IEC 80 · 19 mm shaft 1.1 kW 18.8 r/min 534 Nm 1.87 2.7 kN 18 kN 7.2 kN 37.0 kg
CH-G D403 74.45 PAM90 74.45:1 IEC 90 · 24 mm shaft 1.5 kW 18.8 r/min 728 Nm 1.37 2.7 kN 18 kN 7.2 kN 37.0 kg
CH-G D403 74.45 PAM100 74.45:1 IEC 100 · 28 mm shaft 2.2 kW 18.8 r/min 1068 Nm 0.94 2.7 kN 18 kN 7.2 kN 39.0 kg
CH-G D403 74.45 PAM112 74.45:1 IEC 112 · 28 mm shaft 4 kW 18.8 r/min 1942 Nm 0.52 2.7 kN 18 kN 7.2 kN 39.0 kg
CH-G D403 67.77 PAM80 67.77:1 IEC 80 · 19 mm shaft 1.1 kW 20.7 r/min 487 Nm 2.05 2.6 kN 18 kN 7.2 kN 37.0 kg
CH-G D403 67.77 PAM90 67.77:1 IEC 90 · 24 mm shaft 2.2 kW 20.7 r/min 973 Nm 1.03 2.6 kN 18 kN 7.2 kN 37.0 kg
CH-G D403 67.77 PAM100 67.77:1 IEC 100 · 28 mm shaft 2.2 kW 20.7 r/min 973 Nm 1.03 2.6 kN 18 kN 7.2 kN 39.0 kg
CH-G D403 67.77 PAM112 67.77:1 IEC 112 · 28 mm shaft 4 kW 20.7 r/min 1770 Nm 0.56 2.6 kN 18 kN 7.2 kN 39.0 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.

Service factor — the number that decides how long your gearbox lives

It's the safety margin between what the gearbox can handle and what the motor asks of it: 1.0 means the gearbox works exactly at its rated limit (the catalogue's M2max); higher means reserve capacity — a cooler, quieter drive and a much longer life. As a guide: smooth, steady loads (light conveyors, centrifugal pumps) are fine near 1.0; moderate loads (heavier conveyors, packing machines) deserve 1.3 or more; heavy duty (mixers, bucket elevators, frequent starts, long running hours) should sit at 1.5–2.0.

If the service factor turns red after you pick a motor, that combination is below 1.0 — the motor can overload the gearbox in continuous use. It may be acceptable for light, intermittent duty, but for anything continuous choose a smaller motor, a different ratio, or the next gearbox size up — or ask us and we'll size it with you.

Radial loads

FR1 is the permissible radial load on the input shaft and FR2 on the output shaft (kN, applied at the shaft centre). Chain sprockets, belt pulleys and gears on the shaft all load it radially — check the figure against your drive, and ask us if your load is close to it. The catalogue also limits peak loads to 200 % of the nominal torque.

Need help specifying this product?

Our technical team can help you specify the right component. Add it to your quote basket above, or contact us directly.

Contact Us