Planetary Gear Reducers

Its weight is light and size is small. In the same conditions, this kind of construction is lighter than the cylindrical gear reducer with hardened teeth surface over one half, its size is reduced about 1/2-1/3. High transmitting efficiency: For single stage ¦Ç=0.98 For two stage ¦Ç=0.96 For tri-stage ¦Ç=0.94 The kind of transmitted power is broad and it can be changed from less than one Kw to ten thousand KW. The larger the power is the more notable is its advantage, and the more sizable is its economic benefit. This kind of reducer has various assembling types. It can be installed in multi-surfaces. Its suitability is extensive. In the given manufacturing conditions, they will run steadily and with low noise. Gears are made of high-grade low carbon alloyed steel with carburizing and quenching. The precision of external gear is grade 6 and internal gear grade 7. Their load carrying ability comes up to the level of same kind of products manufactured advanced industrial countries in the present era. Their normal service life is more than ten years. The standard of NGW type spider gear reducer includes twelve series, they are NAD¡¢NAZD¡¢NBD¡¢NBZD¡¢NCD¡¢NCZD¡¢NAF¡¢NBF¡¢NCF¡¢NAZF¡¢NBZF¡¢NCZF and eight derived series standards, they are: NASD¡¢NASF¡¢NBSD¡¢NBSF¡¢NCSD¡¢NCSF¡¢NAL¡¢NBL.