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CoroMill 177 Versatile gear milling

CoroMill® 177 is an indexable carbide insert hob for large gear wheels. The new hobbing concept is optimized for high productivity when manufacturing gear wheels used in gear boxes and transmissions for wind power and other heavy industry applications. The polygon-shaped interface between the segments ensures precision and high torque transfer capability.

 

Benefits 

  • Secure and stable insert seats give reliable performance
  • Easy and accurate insert mounting with easy-accessible insert screws
  • Long tool life and low cost per component thanks to state-of-the-art carbide grades
  • Cutter body that can be used for both roughing and finishing applications for excellent versatility

 

Features

  • Finishing inserts for DIN 3972-2 profiles and roughing inserts with protuberance
  • High-precision interface ensures cutter body accuracy and rigidity for high component quality
  • Designed to handle aggressive cutting data without compromising process security and reliability
  • Tailored to customer-specific profiles

 

 

 



CoroMill 177 features a new polygon-shaped interface between the segments that ensures precision and high torque transfer capability

​Application 

  • Module range 7‒30 (DP 3.62‒0.85)
  • Roughing, semi-finishing and finishing applications
  • Spur- and helical gears
  • Tolerance class B in accordance with DIN 3968
  • Gear wheels used in gear boxes and transmissions for wind power and other heavy industry applications  
ISO application area



 

​Product range

Cutter bodies
 Module sizes,
mm (DP)
Diameter Coupling types​ Coupling sizes​
7–30
(3.62–0.85)​

185–400 mm
7.283–15.748 inch​

Bore with keyway

50, 60, 80 and 100 mm
2-4 inch​

 

Inserts
 Module sizes,
mm (DP)
Profile types Insert geometry Insert grade​
7–30
(3.62–0.85)​
For finishing according to DIN 3972-2

For roughing with protuberance​

-M

GC1030​

 

 
 
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