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HB Helical Gear box
HB Helical Gear box
Supplier Info
[China Supplier]
Contact Person : Ms. Hengfengtai HFT
Tel : 86-577-86119817
Fax : 86-577-86118098
Product Detail
Heavy duty transmission helical gear box: 1.Long work life 2.Running Smoothly 3.Low noise

Product features

BC series heavy-duty transmission helical gear box is a right angle shaft heavy load industrial gearbox designed as hard teethface helical gear. The period of designing and manufacturing are shorter because of the blocking design.The feature is compact construction, steady running. It can bear huge road of industry, insteaded of early international standard gearbox.The products have been mainly used in heavy industrial fields, such as mine, petrochemical, electric power, metallurgy etc.

General Technical data


Transmission stageBC2 (ratio from 5~18)
BC3 (ratio from 12.5~90)
BC4 (ratio from 80~400)
Housing materialHT250 high-strength cast iron
Housing hardnessHBS190-240
Gear material20CrMnTi alloy steel
Surface hardness of gearsHRC58°~62 °
Gear core hardnessHRC33~40
Input / Output shaft material42CrMo alloy steel
Input / Output shaft hardnessHRC25~30
Machining precision of gearsaccurate grinding, 6~5 Grade
Lubricating oilGB L-CKC220-460, Shell Omala220-460
Heat treatmenttempering, cementiting, quenching, etc.
Efficiency92%~98% (depends on the transmission stage)
Noise (MAX)60~68dB
Temp. rise  (MAX)40°C 
Temp. rise (Oil)(MAX)50°C




HB Helical Gear box

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