Gear Cutting Tools
Hobs - Torion
Hobs - Torion
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High-precision rack tooth gang cutters<br />
for tooth racks to module pitch<br />
b 1<br />
20° pressure angle<br />
basic profile I to DIN 3972<br />
with additional grinding slots,<br />
with offset keyways<br />
1 2 3 4<br />
d 2 d 1<br />
KHSS-E EMo5Co5<br />
consecutively numbered as: cutter no. 1, 2, 3, 4<br />
Cat.-No.<br />
Dimensions in mm<br />
2561 relief ground<br />
m d 1 b 1 d 2<br />
Number of<br />
gashes<br />
3 140 9,425 40 20<br />
3,25 10,210<br />
3,5 10,995 18<br />
3,75 11,781<br />
4 150 12,556<br />
4,5 14,137<br />
5 15,708 16<br />
5,5 17,279<br />
6 18,849<br />
6,5 160 20,420 50<br />
7 21,991<br />
8 25,133<br />
9 28,274 14<br />
10 31,416<br />
Rack tooth gang cutters for the simultaneous machining of several tooth gaps are made up of several<br />
single-profile circular-type milling cutters. Through the continual offsetting of the gashes in relation to the<br />
drive slot the individual cutters are successively coming (helically) to the point of cutting addition.<br />
This feature particularly promotes quiet running of the milling machine under heavy chip loads.<br />
To allow regrinding combined in a gang, the individual cutters are provided with an additional closely<br />
tolerated keyway (grinding slot), so that an axially parallel position of the cutting faces on the arbor is<br />
guaranteed.<br />
Rack tooth gang cutters are profile relief ground with parallelly flat lapping of the contact faces.<br />
To improve tool life, these milling cutters are made exclusively of cobalt alloyed super high speed steel.<br />
For extreme precision requirements the tolerances for pitch, flank form, gash spacing, cutting face<br />
position as well as cutting edge concentricity lie within quality grade AA to DIN 3968.<br />
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