Short Data Sheet 

 
 
BHW BHW-W Series
The gearboxes motor reduction units of the BHW and BHW-W series, thanks to the mating of a coaxial gearbox with a worm gearbox, offers the possibility to have higher reduction ratios without significant losses in performances. Ratios up to 1:600 can be reached with a minimum price increase compared to the worm gearbox alone.
 
Transmissible torque: up to 4000 Nm
Transmissible Power: up to 7 Kw
Transmission ratios: 1/60 – 1/600

Model
Material
Torque Nm
BHW 30
Alluminium
30
BHW 40
Alluminium
80
BHW 50 e BHP 50
Alluminium
191
BHP 5
Cast Iron
191
BHW 63 e BHP 63
Alluminium
325
BHP 7
Cast Iron
325
BHW 80 e BHP 80
Alluminium
600
BHP 8
Cast Iron
600
BHW 90
Cast Iron
788
BHW 100
Cast Iron
1060
BHW 125
Cast Iron
1867
BHW 150
Cast Iron
3353

Input configuration:
BHW : hollow output shaft
BHW-W: extended cilyndric shaft
Input flange for IEC motor or hydraulic input
E: complete motor reduction unit

Output configuration:
BHP: output shaft reduced dimensions
Hollow output shaft with keyway
Extended or double extended cilyndric shaft

Other connected products:
BW BW-W Series
BW-BW Double Worm Geared Motors
Maximum Safety MS® device
Series TM electric Motors
 
Optional versions:
 
 

 
 
BHW/BHW-W Series
TECHNICAL DESCRIPTION
 
 
CONSTRUCTIVE BHW/BHW-W CHARACTERISTICS
 
Position and rotation
The constructive characteristics of the reducers series BH, allow several fixing options (with feet and with flange) and can rotate in both directions.
Casing
From size BHW30 to size BHW80 the case is made of aluminium UNI5076 with high resistance and perfectly watertight.
From size BHW90 to size BHW150 the case is made of cast iron G25 with high resistance and water tight.
On request also BHP5, BHP7 and BHP8 interchangeble with center distance 50, 63 and 80 can be produced in cast iron G25.
The casing is suitably finned to favour heath exchange with the external atmosphere and maintain the lubricant and moving parts operating temperature within admissible values, resulting in improved efficiency.
Worm shaft – wheel
The worm is made of steel 18NiCrMo4 cemented, tempered and ground. The precision mechanical works allow to reach optimal efficiency and noise levels.
The wheel is composed of a special bronze alloy on a cast iron hub.
Oil seals
Special sealing components keep water and dust from getting into the wormbox’s inner parts and they guarantee optimal results also in the roughest working field.
  
 
MOTORIZATIONS
 
- TM Series Electric motors with high performaces.
 
 
 
OPTIONS BHW/BHW-W
- Calibra® System highly customizable.
- MS ® option – Torque limiter and slip detector
- Hydraulic Motor Input