F77/FF77/FA77/FAF77 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.
Features ◆High modular design, flexible mounting mode. ◆Integrated casting housing.compact dimension, stable transmitting and low noise level. ◆Perfect oil leakage preventing makes the good sealings and can be used in wide range of industry. ◆Advanced gear grinding and modified profle, high loading support and more safe operation. ◆High efficiency and save power. ◆Save cost and low maintenance.
Main applied for ◆Harbor and shipping ◆Hoist and transport ◆Electric power ◆Coal mining ◆Cement and construction ◆Paper and light industry
Cast iron/Ductile iron
20CrMnTi alloy steel
Surface hardness of gears
Gear core hardness
Input / Output shaft material
42CrMo alloy steel
Input / Output shaft hardness
Machining precision of gears
accurate grinding, 6~5 Grade
GB L-CKC220-460, Shell 0mala220-460
tempering, cementiting, quenching, etC.
94%~96% (depends on the transmission stage)
Temp. rise (MAX)
Temp. rise (OiI)(MAX)
Brand of bearings
China top brand bearing, HRB/LYC/ZWZ/C&U. Or other brands requested,SKF, FAG, INA, NSK.