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Home Catalogue Set - Involute gear cutters for spur wheels, pressure angle 20°, code 890070, module 2
890070.0200 SET
High-speed steel HSS
DIN 3972
Number of teeth (Gears)
Modul
1
2
3
4
5
6
7
8
ZOZ
12-13
14-16
17-20
21-25
26-34
35-54
55-134
135-00
Cutting conditions
e c fz (mm/z) Ø 40Ø 50Ø 63Ø 70Ø 80Ø 90Ø 100
Modul 1-5
P.1 | Free-cutting steels, general construction steels
≤ 600 N/mm²
2,1xm
20
0.01
0.013
0.016
0.018
0.021
0.023
0.026
P.2 | General construction steels, steel castings
≤ 850 N/mm²
2,1xm
15
0.01
0.013
0.016
0.018
0.021
0.023
0.026
K.1 | Cast iron (≤ 240 HB)
≤ 820 N/mm
2,1xm
12
0.011
0.014
0.018
0.02
0.023
0.026
0.029
K.2 | Cast iron (> 240 HB)
> 800 N/mm²
2,1xm
10
0.01
0.013
0.016
0.018
0.021
0.023
0.026
Modul 6
P.1 | Free-cutting steels, general construction steels
≤ 600 N/mm²
2,1xm
20
0.026
0.033
0.041
0.046
0.053
0.059
0.066
P.2 | General construction steels, steel castings
≤ 850 N/mm²
2,1xm
15
0.022
0.027
0.035
0.038
0.044
0.049
0.055
K.1 | Cast iron (≤ 240 HB)
≤ 820 N/mm
2,1xm
12
0.022
0.027
0.035
0.038
0.044
0.049
0.055
K.2 | Cast iron (> 240 HB)
> 800 N/mm²
2,1xm
10
0.021
0.026
0.033
0.037
0.042
0.047
0.053
Calculations of cutting conditions
Product attributes
Straight bore with standard keyway according to DIN 138.
Helix angle = 0°.
Rake angle = 10°.
Universal usage. Suitable for materials up to strength 900 MPa.
High speed steel of average performance, it is applicable especially for cutters of smaller diameters and for milling of materials up to the strength of 900 MPa.
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