The GV and GVL series are gear-type gearboxes with gears, which have backlash-free transmission with a maximum transmission ratio of 1:10 and a maximum reduction ratio of 8000:1.
The GV and GVL are slip‑on spur gear units designed to drive LEONARD rotary cam switches. They mount directly onto the cam shaft and are secured with four M6 screws (GV) or two M8 screws (GVL). The gearboxes are housed in cast aluminium with a green hammer‑finish (RAL 6011) and are available in a range of gear ratios up to 8000:1.
Key specifications include a maximum drive speed of 3000 r.p.m., a maximum torque of 15 Nm, and operating temperature ranges from –25 °C to +90 °C (ambient) and –30 °C to +100 °C (storage). The units weigh 3.5–4.5 kg and use deep‑groove ball bearings that are maintenance‑free.
| Housing material | cast aluminium |
|---|---|
| Housing colour | RAL 6011 “green hammer finish” |
| Input spindle diameter | ø20h6, ground |
| Output shaft diameter | ø20H7 |
| Maximum drive speed | 3000 r.p.m. |
| Maximum torque | 15 Nm |
| Weight | 3.5 to 4.5 kg |
| Ambient temperature range | -25 °C to +90 °C |
| Storage temperature range | -30 °C to +100 °C |
The maximum ratio is 1:10 with a maximum reduction of 8000:1.
The maximum drive speed is 3000 r.p.m.