B series helical bevel gearbox is a completely new design. Outstanding innovations: More sizes with reduced variety of parts; Higher operational reliability combined with increased power capacity; Flanged output shafts facilitate assembly of gear reducer in confined spaces.
B Series High Power Gear Units is a brand-new model of rigid tooth flank gear reducers with wide application areas, which has the feature of large torque range, a design of unit structure modulization capable of horizontal mounting and vertical mounting, three kinds of output shafts --- solid shaft, hollow shaft and hollow shaft with shrink disk. With carbureted high-strength good-quality alloy, the series has the feature of high-efficiency and long life-span, high permissible axial and radial loads, low noise, high reliability and compact structure and so on.
Torque Range:Up to 470000N.m
Output speed:1.7～1200rpm
Input power:2.2～5366kw
Mounting solution: foot mounted,shaft mounted,shrink disk mounted.
Input:shaft with key-way,IEC flange;
Output:hollow shaft with key-way,hollow shaft with shrink disk;
Shaft arrangment: A,B,C,D (detailed please see catalogue)
characteristics:
1.Housing material:HT250 high-strength cast iron ; 2.Housing hardness:HBS190-240;
3.Gear material:20CrMnTi alloy steel,other materials requested:17CrNi2Mo,20CrNi4A
4.Surface hardness of gears:HRC58-62; 5.Gear core hardness:HRC33-40;
6.Input / Output shaft material:42CrMo alloy steel; 7.Input / Output shaft hardness:HRC25-30;
8.Heat treatment:tempering,cementiting,quenching.etc.;
9.Machining precision of gears:accurate grinding, 6-5 Grade; 10.Noise (MAX):60~68dB;
11.Lubricating oil:GB L-CKC220-460, Shell Omala220-460; 12.Temp. rise (MAX):40°C ;
13..Efficiency:94%~96% (depends on the transmission stage) ;14.Temp. rise (Oil)(MAX):50°C; 15.Backlash:≤20Arcmin; 16.Vibration:≤20µm;
