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Chiaravalli CHE 07 worm gearbox with a motor flange and a free input shaft end on the opposite side
Chiaravalli

CHE 07 Worm Gearbox with Motor Flange and Free Input Shaft (Ø30 mm output shaft)

Worm Gearboxes

CHE 07 — the CH worm gearbox with its IEC motor flange plus a free input shaft end on the opposite side — for a hand wheel, an encoder, a brake or a second drive on the input. Aluminium housing, hollow output shaft with 30 mm bore, keyed; foot mounting with the A (feet) body as the catalogue's CHR/CHRE drawings — the ..P flange-output execution is available too. Input shaft Ø19 h6 × 40 mm with M6 centre thread, output 30 H7 hollow bore with 8 mm keyway (body and shaft dimensions on the CHR/CHRE sheet; everything else as the CH 07). Filled for life with synthetic oil — no oil changes, no maintenance; aluminium housing.

Supplied without motor. Fits IEC 71 or 80 or 90 or 100 motors (B5 or B14 flange as the CH 07 — only the frames the catalogue lists for each ratio are offered).

How to pick from the table: with a standard 4-pole motor (1400 r/min) the ratio sets the output speed. Choose the row whose output speed and torque match your application, then the flange that matches your motor. The Motor column lists the motors that fit that row — pick yours and the output torque and service factor update to match. More in the Selection Guide tab below.

Product Configuration

Select a row to add it to your quote

CHE 07: ratings as the CH 07 at 1400 r/min input; the free input shaft end is Ø19 h6 × 40 mm.

CodeRatioMotor flangeMotorOutput speedOutput torqueService factor
CHE-07 R.7 90F24 7:1 IEC 90 · 24 mm shaft 1.85 kW 200 r/min 79 Nm 2.38
CHE-07 R.7 100F28 7:1 IEC 100 · 28 mm shaft 3 kW 200 r/min 128 Nm 1.47
CHE-07 R.10 90F24 10:1 IEC 90 · 24 mm shaft 1.85 kW 140 r/min 108 Nm 2.11
CHE-07 R.10 100F28 10:1 IEC 100 · 28 mm shaft 3 kW 140 r/min 175 Nm 1.3
CHE-07 R.15 90F24 15:1 IEC 90 · 24 mm shaft 1.85 kW 93 r/min 154 Nm 1.62
CHE-07 R.15 100F28 15:1 IEC 100 · 28 mm shaft 3 kW 93 r/min 250 Nm 1
CHE-07 R.20 90F24 20:1 IEC 90 · 24 mm shaft 1.85 kW 70 r/min 202 Nm 1.19
CHE-07 R.20 100F28 20:1 IEC 100 · 28 mm shaft 2.2 kW 70 r/min 240 Nm 1
CHE-07 R.25 80F19 25:1 IEC 80 · 19 mm shaft 1.1 kW 56 r/min 149 Nm 1.68
CHE-07 R.25 90F24 25:1 IEC 90 · 24 mm shaft 1.85 kW 56 r/min 250 Nm 1
CHE-07 R.30 80F19 30:1 IEC 80 · 19 mm shaft 1.1 kW 47 r/min 169 Nm 1.64
CHE-07 R.30 90F24 30:1 IEC 90 · 24 mm shaft 1.5 kW 47 r/min 230 Nm 1.2
CHE-07 R.40 80F19 40:1 IEC 80 · 19 mm shaft 1.1 kW 35 r/min 215 Nm 1.2
CHE-07 R.40 90F24 40:1 IEC 90 · 24 mm shaft 1.1 kW 35 r/min 215 Nm 1.2
CHE-07 R.50 80F19 50:1 IEC 80 · 19 mm shaft 0.75 kW 28 r/min 150 Nm 1.32
CHE-07 R.50 90F24 50:1 IEC 90 · 24 mm shaft 0.75 kW 28 r/min 150 Nm 1.32
CHE-07 R.60 80F19 60:1 IEC 80 · 19 mm shaft 0.75 kW 23 r/min 200 Nm 1
CHE-07 R.60 90F24 60:1 IEC 90 · 24 mm shaft 0.75 kW 23 r/min 200 Nm 1
CHE-07 R.80 71F14 80:1 IEC 71 · 14 mm shaft 0.55 kW 17 r/min 180 Nm 1
CHE-07 R.80 80F19 80:1 IEC 80 · 19 mm shaft 0.55 kW 17 r/min 180 Nm 1
CHE-07 R.100 71F14 100:1 IEC 71 · 14 mm shaft 0.37 kW 14 r/min 140 Nm 1.1
CHE-07 R.100 80F19 100:1 IEC 80 · 19 mm shaft 0.37 kW 14 r/min 140 Nm 1.1

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 drive asks of it: 1.0 means the gearbox works exactly at its rated limit; 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.

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

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