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Chiaravalli CH-G A 702 helical gear unit (chiaravalli.com product image)
Chiaravalli

CH-G A 702 Helical Gear Unit (Ø70 mm output shaft)

Cast Iron Gearboxes CH-G

CH-G A 702 helical in-line gear unit — Chiaravalli's cast iron series: two-stage, size 70, ratios 5.38:1 to 44.67:1. This is the A … / PAM version — foot mounting with the PAM motor input — the version the catalogue lists as available from stock. Solid keyed output shaft Ø70 m6. The flange-mounted F and foot-flange AF versions, the W input-shaft and IEC-coupling input versions and the FA–FD output flanges are made to order — ask us. PAM motor input for IEC 132, 160, 180, 200 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 44.67:1 gives 31 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, 16.41 to 81.68 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 FR2 Weight
CH-G A702 44.67 PAM132 44.67:1 IEC 132 · 38 mm shaft 7.5 kW 31.3 r/min 2285 Nm 2.19 3.4 kN 30 kN 117.0 kg
CH-G A702 44.67 PAM160 44.67:1 IEC 160 · 42 mm shaft 15 kW 31.3 r/min 4570 Nm 1.09 3.4 kN 30 kN 123.0 kg
CH-G A702 44.67 PAM180 44.67:1 IEC 180 · 48 mm shaft 18.5 kW 31.3 r/min 5637 Nm 0.89 3.4 kN 30 kN 123.0 kg
CH-G A702 36.6 PAM132 36.6:1 IEC 132 · 38 mm shaft 7.5 kW 38.3 r/min 1872 Nm 2.67 3.2 kN 30 kN 117.0 kg
CH-G A702 36.6 PAM160 36.6:1 IEC 160 · 42 mm shaft 15 kW 38.3 r/min 3744 Nm 1.34 3.2 kN 30 kN 123.0 kg
CH-G A702 36.6 PAM180 36.6:1 IEC 180 · 48 mm shaft 18.5 kW 38.3 r/min 4618 Nm 1.08 3.2 kN 30 kN 123.0 kg
CH-G A702 33.43 PAM132 33.43:1 IEC 132 · 38 mm shaft 7.5 kW 41.9 r/min 1710 Nm 2.92 3.2 kN 29.5 kN 117.0 kg
CH-G A702 33.43 PAM160 33.43:1 IEC 160 · 42 mm shaft 15 kW 41.9 r/min 3420 Nm 1.46 3.2 kN 29.5 kN 123.0 kg
CH-G A702 33.43 PAM180 33.43:1 IEC 180 · 48 mm shaft 18.5 kW 41.9 r/min 4218 Nm 1.19 3.2 kN 29.5 kN 123.0 kg
CH-G A702 30.27 PAM132 30.27:1 IEC 132 · 38 mm shaft 7.5 kW 46.2 r/min 1549 Nm 3.23 3.1 kN 28 kN 117.0 kg
CH-G A702 30.27 PAM160 30.27:1 IEC 160 · 42 mm shaft 15 kW 46.2 r/min 3098 Nm 1.61 3.1 kN 28 kN 123.0 kg
CH-G A702 30.27 PAM180 30.27:1 IEC 180 · 48 mm shaft 22 kW 46.2 r/min 4544 Nm 1.1 3.1 kN 28 kN 123.0 kg
CH-G A702 27.87 PAM132 27.87:1 IEC 132 · 38 mm shaft 7.5 kW 50.2 r/min 1426 Nm 3.51 3 kN 26.8 kN 117.0 kg
CH-G A702 27.87 PAM160 27.87:1 IEC 160 · 42 mm shaft 15 kW 50.2 r/min 2852 Nm 1.75 3 kN 26.8 kN 123.0 kg
CH-G A702 27.87 PAM180 27.87:1 IEC 180 · 48 mm shaft 22 kW 50.2 r/min 4183 Nm 1.2 3 kN 26.8 kN 123.0 kg
CH-G A702 27.87 PAM200 27.87:1 IEC 200 · 55 mm shaft 30 kW 50.2 r/min 5703 Nm 0.88 3 kN 26.8 kN 139.0 kg
CH-G A702 24.8 PAM132 24.8:1 IEC 132 · 38 mm shaft 7.5 kW 56.4 r/min 1269 Nm 3.94 2.9 kN 25.2 kN 117.0 kg
CH-G A702 24.8 PAM160 24.8:1 IEC 160 · 42 mm shaft 15 kW 56.4 r/min 2538 Nm 1.97 2.9 kN 25.2 kN 123.0 kg
CH-G A702 24.8 PAM180 24.8:1 IEC 180 · 48 mm shaft 22 kW 56.4 r/min 3723 Nm 1.34 2.9 kN 25.2 kN 123.0 kg
CH-G A702 22.84 PAM132 22.84:1 IEC 132 · 38 mm shaft 7.5 kW 61.3 r/min 1168 Nm 4.28 2.8 kN 24.1 kN 117.0 kg
CH-G A702 22.84 PAM160 22.84:1 IEC 160 · 42 mm shaft 15 kW 61.3 r/min 2336 Nm 2.14 2.8 kN 24.1 kN 123.0 kg
CH-G A702 22.84 PAM180 22.84:1 IEC 180 · 48 mm shaft 22 kW 61.3 r/min 3427 Nm 1.46 2.8 kN 24.1 kN 123.0 kg
CH-G A702 22.84 PAM200 22.84:1 IEC 200 · 55 mm shaft 30 kW 61.3 r/min 4673 Nm 1.07 2.8 kN 24.1 kN 139.0 kg
CH-G A702 20.86 PAM132 20.86:1 IEC 132 · 38 mm shaft 7.5 kW 67.1 r/min 1067 Nm 4.69 2.6 kN 22.9 kN 117.0 kg
CH-G A702 20.86 PAM160 20.86:1 IEC 160 · 42 mm shaft 15 kW 67.1 r/min 2134 Nm 2.34 2.6 kN 22.9 kN 123.0 kg
CH-G A702 20.86 PAM180 20.86:1 IEC 180 · 48 mm shaft 22 kW 67.1 r/min 3130 Nm 1.6 2.6 kN 22.9 kN 123.0 kg
CH-G A702 20.86 PAM200 20.86:1 IEC 200 · 55 mm shaft 30 kW 67.1 r/min 4269 Nm 1.17 2.6 kN 22.9 kN 139.0 kg
CH-G A702 19.6 PAM132 19.6:1 IEC 132 · 38 mm shaft 7.5 kW 71.4 r/min 1003 Nm 4.99 2.6 kN 22.1 kN 117.0 kg
CH-G A702 19.6 PAM160 19.6:1 IEC 160 · 42 mm shaft 15 kW 71.4 r/min 2005 Nm 2.49 2.6 kN 22.1 kN 123.0 kg
CH-G A702 19.6 PAM180 19.6:1 IEC 180 · 48 mm shaft 22 kW 71.4 r/min 2941 Nm 1.7 2.6 kN 22.1 kN 123.0 kg
CH-G A702 19.6 PAM200 19.6:1 IEC 200 · 55 mm shaft 30 kW 71.4 r/min 4011 Nm 1.25 2.6 kN 22.1 kN 139.0 kg
CH-G A702 17.18 PAM132 17.18:1 IEC 132 · 38 mm shaft 7.5 kW 81.5 r/min 879 Nm 5.46 2.4 kN 21.1 kN 117.0 kg
CH-G A702 17.18 PAM160 17.18:1 IEC 160 · 42 mm shaft 15 kW 81.5 r/min 1758 Nm 2.73 2.4 kN 21.1 kN 123.0 kg
CH-G A702 17.18 PAM180 17.18:1 IEC 180 · 48 mm shaft 22 kW 81.5 r/min 2579 Nm 1.86 2.4 kN 21.1 kN 123.0 kg
CH-G A702 17.18 PAM200 17.18:1 IEC 200 · 55 mm shaft 30 kW 81.5 r/min 3516 Nm 1.37 2.4 kN 21.1 kN 139.0 kg
CH-G A702 14.08 PAM132 14.08:1 IEC 132 · 38 mm shaft 7.5 kW 99.5 r/min 720 Nm 6.39 2.1 kN 19.4 kN 117.0 kg
CH-G A702 14.08 PAM160 14.08:1 IEC 160 · 42 mm shaft 15 kW 99.5 r/min 1441 Nm 3.19 2.1 kN 19.4 kN 123.0 kg
CH-G A702 14.08 PAM180 14.08:1 IEC 180 · 48 mm shaft 22 kW 99.5 r/min 2113 Nm 2.18 2.1 kN 19.4 kN 123.0 kg
CH-G A702 14.08 PAM200 14.08:1 IEC 200 · 55 mm shaft 30 kW 99.5 r/min 2881 Nm 1.6 2.1 kN 19.4 kN 139.0 kg
CH-G A702 12.86 PAM132 12.86:1 IEC 132 · 38 mm shaft 7.5 kW 108.9 r/min 658 Nm 6.69 2 kN 19 kN 117.0 kg
CH-G A702 12.86 PAM160 12.86:1 IEC 160 · 42 mm shaft 15 kW 108.9 r/min 1316 Nm 3.34 2 kN 19 kN 123.0 kg
CH-G A702 12.86 PAM180 12.86:1 IEC 180 · 48 mm shaft 22 kW 108.9 r/min 1929 Nm 2.28 2 kN 19 kN 123.0 kg
CH-G A702 12.86 PAM200 12.86:1 IEC 200 · 55 mm shaft 30 kW 108.9 r/min 2631 Nm 1.67 2 kN 19 kN 139.0 kg
CH-G A702 10.53 PAM160 10.53:1 IEC 160 · 42 mm shaft 15 kW 132.9 r/min 1078 Nm 3.71 1.8 kN 18.2 kN 123.0 kg
CH-G A702 10.53 PAM180 10.53:1 IEC 180 · 48 mm shaft 22 kW 132.9 r/min 1580 Nm 2.53 1.8 kN 18.2 kN 123.0 kg
CH-G A702 10.53 PAM200 10.53:1 IEC 200 · 55 mm shaft 30 kW 132.9 r/min 2155 Nm 1.86 1.8 kN 18.2 kN 139.0 kg
CH-G A702 8.63 PAM160 8.63:1 IEC 160 · 42 mm shaft 15 kW 162.3 r/min 883 Nm 4.3 1.5 kN 16.9 kN 123.0 kg
CH-G A702 8.63 PAM180 8.63:1 IEC 180 · 48 mm shaft 22 kW 162.3 r/min 1295 Nm 2.93 1.5 kN 16.9 kN 123.0 kg
CH-G A702 8.63 PAM200 8.63:1 IEC 200 · 55 mm shaft 30 kW 162.3 r/min 1766 Nm 2.15 1.5 kN 16.9 kN 139.0 kg
CH-G A702 7.88 PAM160 7.88:1 IEC 160 · 42 mm shaft 15 kW 177.7 r/min 806 Nm 4.59 1.3 kN 16.3 kN 123.0 kg
CH-G A702 7.88 PAM180 7.88:1 IEC 180 · 48 mm shaft 22 kW 177.7 r/min 1183 Nm 3.13 1.3 kN 16.3 kN 123.0 kg
CH-G A702 7.88 PAM200 7.88:1 IEC 200 · 55 mm shaft 30 kW 177.7 r/min 1613 Nm 2.29 1.3 kN 16.3 kN 139.0 kg
CH-G A702 7.2 PAM160 7.2:1 IEC 160 · 42 mm shaft 15 kW 194.6 r/min 736 Nm 4.89 1.1 kN 15.8 kN 123.0 kg
CH-G A702 7.2 PAM180 7.2:1 IEC 180 · 48 mm shaft 22 kW 194.6 r/min 1080 Nm 3.33 1.1 kN 15.8 kN 123.0 kg
CH-G A702 7.2 PAM200 7.2:1 IEC 200 · 55 mm shaft 30 kW 194.6 r/min 1473 Nm 2.44 1.1 kN 15.8 kN 139.0 kg
CH-G A702 5.9 PAM160 5.9:1 IEC 160 · 42 mm shaft 15 kW 237.5 r/min 603 Nm 5.3 0.9 kN 15.3 kN 123.0 kg
CH-G A702 5.9 PAM180 5.9:1 IEC 180 · 48 mm shaft 22 kW 237.5 r/min 885 Nm 3.62 0.9 kN 15.3 kN 123.0 kg
CH-G A702 5.9 PAM200 5.9:1 IEC 200 · 55 mm shaft 30 kW 237.5 r/min 1206 Nm 2.65 0.9 kN 15.3 kN 139.0 kg
CH-G A702 5.38 PAM160 5.38:1 IEC 160 · 42 mm shaft 15 kW 260 r/min 551 Nm 5.45 0.8 kN 15.2 kN 123.0 kg
CH-G A702 5.38 PAM180 5.38:1 IEC 180 · 48 mm shaft 22 kW 260 r/min 808 Nm 3.71 0.8 kN 15.2 kN 123.0 kg
CH-G A702 5.38 PAM200 5.38:1 IEC 200 · 55 mm shaft 30 kW 260 r/min 1102 Nm 2.72 0.8 kN 15.2 kN 139.0 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.

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