CHM 040 Worm Gearbox (Ø18 mm output shaft)
CHM 040 worm gearbox with aluminium housing and a standard IEC motor input flange — no coupling or adaptor needed: the motor bolts straight on. Hollow output shaft with 18 mm bore, keyed — it mounts directly onto your driven shaft, and optional output flanges (the F executions on the dimension drawing) are available if you need to flange-mount it. Fits IEC 56 or 63 or 71 motors (B5 or B14 flange), recommended motors up to 0.55 kW. Supplied in the universal position — it can be mounted in any orientation. Filled for life with synthetic oil — no oil changes, no maintenance.
Supplied without motor. You are choosing the gearbox only — 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 7.5:1 gives 187 r/min at the output shaft. Choose the row whose output speed and torque match your application, then the flange that matches your motor (the frame size and shaft diameter are on the motor's nameplate). 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.
Typical applications: conveyor systems, OEM machinery, automation and robotics, agricultural and greenhouse equipment.
Product Configuration
Select a row to add it to your quote
| Code | Ratio | Motor flange | Motor | Output speed | Output torque | Service factor | Weight |
|---|---|---|---|---|---|---|---|
CHM-040 R.7.5 63F11 |
7.5:1
|
IEC 63 · 11 mm shaft
|
0.25 kW
|
186.7 r/min
|
10 Nm
|
3.52
|
2.3 kg
|
CHM-040 R.7.5 71F14 |
7.5:1
|
IEC 71 · 14 mm shaft
|
0.55 kW
|
186.7 r/min
|
22 Nm
|
1.6
|
2.3 kg
|
CHM-040 R.10 63F11 |
10:1
|
IEC 63 · 11 mm shaft
|
0.25 kW
|
140 r/min
|
14 Nm
|
3.08
|
2.3 kg
|
CHM-040 R.10 71F14 |
10:1
|
IEC 71 · 14 mm shaft
|
0.55 kW
|
140 r/min
|
30 Nm
|
1.4
|
2.3 kg
|
CHM-040 R.15 63F11 |
15:1
|
IEC 63 · 11 mm shaft
|
0.25 kW
|
93.3 r/min
|
20 Nm
|
1.98
|
2.3 kg
|
CHM-040 R.15 71F14 |
15:1
|
IEC 71 · 14 mm shaft
|
0.37 kW
|
93.3 r/min
|
30 Nm
|
1.34
|
2.3 kg
|
CHM-040 R.20 63F11 |
20:1
|
IEC 63 · 11 mm shaft
|
0.25 kW
|
70 r/min
|
17 Nm
|
2.2
|
2.3 kg
|
CHM-040 R.20 71F14 |
20:1
|
IEC 71 · 14 mm shaft
|
0.55 kW
|
70 r/min
|
38 Nm
|
1
|
2.3 kg
|
CHM-040 R.25 63F11 |
25:1
|
IEC 63 · 11 mm shaft
|
0.25 kW
|
56 r/min
|
30 Nm
|
1.33
|
2.3 kg
|
CHM-040 R.25 71F14 |
25:1
|
IEC 71 · 14 mm shaft
|
0.25 kW
|
56 r/min
|
30 Nm
|
1.33
|
2.3 kg
|
CHM-040 R.30 63F11 |
30:1
|
IEC 63 · 11 mm shaft
|
0.25 kW
|
46.7 r/min
|
35 Nm
|
1.18
|
2.3 kg
|
CHM-040 R.30 71F14 |
30:1
|
IEC 71 · 14 mm shaft
|
0.25 kW
|
46.7 r/min
|
35 Nm
|
1.18
|
2.3 kg
|
CHM-040 R.40 63F11 |
40:1
|
IEC 63 · 11 mm shaft
|
0.18 kW
|
35 r/min
|
31 Nm
|
1.25
|
2.3 kg
|
CHM-040 R.40 71F14 |
40:1
|
IEC 71 · 14 mm shaft
|
0.18 kW
|
35 r/min
|
31 Nm
|
1.25
|
2.3 kg
|
CHM-040 R.50 56F9 |
50:1
|
IEC 56 · 9 mm shaft
|
0.09 kW
|
28 r/min
|
18 Nm
|
2.2
|
2.3 kg
|
CHM-040 R.50 63F11 |
50:1
|
IEC 63 · 11 mm shaft
|
0.18 kW
|
28 r/min
|
36 Nm
|
1.1
|
2.3 kg
|
CHM-040 R.60 56F9 |
60:1
|
IEC 56 · 9 mm shaft
|
0.09 kW
|
23.3 r/min
|
21 Nm
|
1.6
|
2.3 kg
|
CHM-040 R.60 63F11 |
60:1
|
IEC 63 · 11 mm shaft
|
0.12 kW
|
23.3 r/min
|
28 Nm
|
1.2
|
2.3 kg
|
CHM-040 R.80 56F9 |
80:1
|
IEC 56 · 9 mm shaft
|
0.09 kW
|
17.5 r/min
|
18 Nm
|
1.6
|
2.3 kg
|
CHM-040 R.80 63F11 |
80:1
|
IEC 63 · 11 mm shaft
|
0.12 kW
|
17.5 r/min
|
24 Nm
|
1.2
|
2.3 kg
|
CHM-040 R.100 56F9 |
100:1
|
IEC 56 · 9 mm shaft
|
0.09 kW
|
14 r/min
|
18 Nm
|
1.6
|
2.3 kg
|
CHM-040 R.100 63F11 |
100:1
|
IEC 63 · 11 mm shaft
|
0.12 kW
|
14 r/min
|
23 Nm
|
1.2
|
2.3 kg
|
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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; 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.
Note: kW ratings marked ** assume a 71-frame motor.
- Material
- Aluminium housing
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