The characteristics of the gearbox:

1. Compact structure: using three-stage transmission of helical, bevel and planetary gear.
2. two-way operation, allows the maximum tilt angle of 30°in working face, and the maximum walking angle of 20°.Lubrication with oil pump when power is large, to ensure the safety lubrication in a very inclined location.
3. JS series also have high efficient cooling system, so it can satisfy the dickey cooling and ventilation working conditions under mine.
4. The profiles of gears are properly modified, optimum longitudinal load distribution, lower noise and vibration levels.
5. Gearbox’s internal structure has optimization designed so it has higher operational reliability combined with increased power capacity.

JS Series Standard

1. The gear accuracy is according to GB10095-88“Cylindrical gears-ISO system of accuracy”.
2. The calculation of load capacity of spur and helical gears is by ISO6336-1996 “Calculation of load capacity of spur and helical gears”.

3.  The strength and quality control of materials is according to ISO6336-5:1996 “calculation of load capacity of spur and helical gears-part 5: strength and quality of materials”.

4. The units fit with ANSI/AGMA6010-E88”standard for spur, helical, herringbone and bevel enclosed drives” too.