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Carbide Gear Hob With Extended Multi-Head Shank M1.5-M5
Gear Hob
Small module gear hob M0.2-M1 Ø20-Ø32 AA, A grade
Standard gear hob M1-M12 Ø55-Ø180 AA, A grade
Front shaving gear hob M1-M12 Ø55-Ø180 AA, A grade
Grinding gear hob M1-M12 Ø55-Ø180 AA, A grade
Top cut gear hob M0.2-M12 Ø15-Ø180 AA, A grade
Chamfering gear hob M0.8-M12 Ø15-Ø180 AA, A grade
When the knife rotates, the gear rotates one tooth around its axis; when the multi-head hob rotates, the number of teeth rotated by the gear is equal to the number of hob heads. The hob of the worm gear hob is often made into a straight chip groove when the helix angle is less than 5°, which is convenient for manufacturing and sharpening; the hob with a large helix angle is often made into a spiral chip groove, so as to avoid Disadvantage of cutting edges with large negative rake angles. The small and medium modulus gear hob made of high-speed steel generally adopts an integral structure. In order to save high-speed steel, avoid forging difficulties and improve the metallographic structure, the hob with a modulus of more than 10 mm often adopts an insert structure.