Gear Cutting Tools
Hobs - Torion
Hobs - Torion
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Circular type gear roughing cutters<br />
stepped-up type<br />
Basic profile IV DIN 3972<br />
20° pressure angle<br />
alternate cutting<br />
with keyway<br />
DIN 138<br />
d 2<br />
d 1<br />
b 1<br />
KHSS-E EMo5Co5<br />
Radial-rake 8°<br />
Cat.-No.<br />
Dimensions in mm<br />
m d 1 b 1 d 2<br />
Series I cutter<br />
2630 relief turned<br />
Number of<br />
gashes<br />
Ident Nr.<br />
12 145 28 40 16 2122085<br />
14 160 32 2129266<br />
16 170 37 2125036<br />
18 180 42 50 2125037<br />
20 200 46 2125005<br />
22 210 50 2125006<br />
24 220 54 2125007<br />
26 240 58 60 2129268<br />
28 250 63 2121680<br />
30 260 68 2129276<br />
Series II cutter<br />
12 160 28 50 18 2125874<br />
14 175 32 2129267<br />
16 190 37 2121701<br />
18 210 42 60 2126898<br />
20 225 46 2122883<br />
22 240 50 2127500<br />
24 250 54 2127501<br />
26 275 58 80 2129269<br />
28 290 63 2129275<br />
30 300 68 2129277<br />
Stepped-up pre-machining is a process well-tried in practice for gear sizes above 10 module.<br />
An advantage of this cutter design is the relatively low power requirement as the chips are at the<br />
steps only formed in the direction of the circumference and hardly any lateral loads are occurring.<br />
Another feature is the relatively simple maintenance by tool face grinding.<br />
When enough machine power is available, these cutters can also be used as gang cutters for<br />
simultaneous machining of two adjacent tooth gaps.<br />
Two overall dimension series have been established in practice for stepped-up roughing cutters.<br />
Special dimensional requirements can however also be taken into account with these cutters.<br />
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