R77/RF77/RS77/RF77 series helical gear reducer has the characteristics of strong versatility, good combination and strong carrying capacity. It has the advantages of easy transmission ratio, high efficiency, small vibration and large radial load of shaft. This series not only can be combined with various reducers and transmissions to meet the requirements, but also facilitates the localization of related transmission equipment.
High modular design.
The integral casting shell has compact size, high load carrying capacity, stable transmission and low noise.
Good anti-leakage performance, good sealing, can be widely used in industrial production.
Cost savings and low maintenance costs.
Main application industries
Food light industry, electrical machinery, construction machinery, metallurgical machinery,
Cement machinery, environmental protection machinery, electronic appliances, road construction machinery,
Water conservancy machinery, chemical machinery, mining machinery, transportation machinery,
Building materials machinery, rubber machinery, petroleum machinery and other industries
Cast iron / ductile iron
20CrMnTi alloy steel
Gear surface hardness
HRC58 ° ~ 62 °
Gear core hardness
HRC33 ~ 40
Input / output shaft material
42CrMo alloy steel
Input / output shaft hardness
HRC25 ~ 30
Gear machining accuracy
Precision grinding, level 6 ~ 5
GB L-CKC220-460, Shell withstand voltage 220-460
Tempering, carburizing, quenching, etc.
94% ~ 96% (depending on the transmission stage)
60 ~ 68dB
Temperature rise (MAX)
40 ° C
Temperature rise (oil) (maximum)
50 ° C
Chinese brand bearings, HRB / LYC / ZWZ / C & U. Or other brands requested, SKF, FAG, INA, NSK.