Gear Cutting Tools

For module range
Item
no.
Measurement
Symbol
Quality
grade
above above above above above above above above above
0,63–1 1–1,6 1,6–2,5 2,5–4 4–6,3 6,3–10 10–16 16–25 25–40
Tolerances in µm
AA –25 –28 –32 –36 –40 –50 –63 –80 –100
13
Tooth thickness on the
reference cylinder
fs –
A –25 –28 –32 –36 –40 –50 –63 –80 –100
B –50 –56 –63 –71 –80 –100 –125 –160 –200
AA 4 4 5 6 8 10 12 16 20
2
start
A 7 8 9 10 12 16 20 25 32
B 14 16 18 20 25 32 40 50 63
14
Hob lead
from cutting edge to
cutting edge in the
direction of spiral
+
f HF –
3–4
start
AA 4 5 6 8 10 12 16 20 25
A 8 9 10 12 16 20 25 32 40
B 16 18 20 25 32 40 50 63 80
AA 5 6 8 10 12 16 20 25 32
5–6
start
A 9 10 12 16 20 25 32 40 50
B 18 20 25 32 40 50 63 80 100
AA 6 6 8 10 12 14 18 22 28
2
start
A 11 12 14 16 20 25 32 40 50
B 22 25 28 32 40 50 63 80 100
15
Hob lead
in the direction of spiral
between
any cutting edges in one
axial pitch
3–4
start
AA 6 8 10 12 14 18 22 28 36
A 12 14 16 20 25 32 40 50 63
B 25 28 32 40 50 63 80 100 125
18
Pitch deviation
between adjacent
threads of a tooth
segment
F HF
+
fpx –
2–3
start
4–6
start
A 7 8 9 10 12 16 20 25 32
B 14 16 18 20 25 32 40 50 63
AA 6 7 8 11 13 16 20 25 32
A 9 10 12 16 20 25 32 40 50
AA 8 10 12 14 18 22 28 36 45
5–6
start
A 14 16 20 25 32 40 50 63 80
B 28 32 40 50 63 80 100 125 160
AA 5 5 6 7 8 11 13 16 20
B 18 20 25 32 40 50 63 80 100
AA 8 8 8 11 14 17 20 25 31
19
Pitch deviation
between any two
spirals of a tooth
land within
the hob lead
Fpx
2–3
start
4–6
start
A 14 15 17 20 22 28 35 45 56
B 28 31 35 39 45 56 70 88 112
AA 10 10 10 13 16 19 22 29 35
A 16 18 19 22 26 32 40 51 64
B 32 35 40 45 51 64 80 101 128
129