The RV Series comprises of compactly made worm gearbox. It is encased in a die casting aluminium alloy housing. An ability to adjust to long term operation is incorporated. It is also manufactured with a larger speed ratio range. The range is manufactured with a heat sink construction. This enables it to have a great surface area. An extensive thermal capacity is also provided. The RV Series is available in eight various sizes ranging from, 030 to 130. It can also be purchased with a power scope amounting from 7.5 w to 60 kw.