Helicoidal reduction gears series
The helicoidal reductor gears contain Helicon type gear shift.
The helicoidal reductor gears are a kind of a gear shift with crossed axes, which can be placed between the worm gear shifts and the hypoid gear shifts. The helicoidal reductor gear shift allow for a high transmission numbers with many simultaniously engaged gears and a relatively high efficiency coefficient.
The clearance in the catching can be regulated easily, which allow in practice a no-gap transmission to be achieved. These technical characteristics lead to the products' better reliability and exploitation durability.
These products are now produced under licence and are offered in three different types:
RH 31 type, RH 45 type and RH 50 type with 50, 100 and 150 Nm nominal rotative moments and transmission numbers ranging from 20 to 80.
| Technical characteristics: | RH 31 | RH 45 | RH 50 |
| Distance between the axes, mm | 31,5 | 45 | 50 |
| Transmission numbers | 12…105 | 20…80 | 20…80 |
| Driving power max, kW | 0.370 | 1,1 | 1,5 |
| Nominal rotative moment, Nm | 50 | 100 | 150 |
| Nominal entry moment, tr/min | 1500 | 1500 | 1500 |
| Theoretical efficiency coefficient, % | 51…95 | 51…95 | 51…95 |
| Theoretical efficiency coefficient - cast-iron frame parts, kg - alluminium frame parts, kg |
12 6 |
34 24,5 |
38 26,6 |