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2.
INSTALLATION
２－１．
Installation to the axis
A Bore diameter tolerance of h6 or h7 for installing the Shock Guard to the shaft is
recommended. Use a JIS 1301-1996
（
New JIS standards
）
parallel key. Allow some
clearance between the top of the key and keyway.
When installing the cam actuating plate to the shaft, tighten bolts in three places.
（
For
the key, 1 place; for the shaft, 2 places
）
When mounting the Shock Guard to the end face of the shaft, depending on the
installation method, the cam actuating plate set screws cannot be used. In this case use
the tap holes on the mounting seat side.
Set screws for these tap holes are not included, so use bolts with a length that fits the
bore diameter. (Table 2) Take care to ensure that the head of the set screws do not come
out from the outer diameter of the camshaft.
If the head of the screws come out, they will interfere with the inner diameter and lateral
side of the mounting seats when the Shock Guard trips.
If during operation there is a chance vibration will cause the screws to loosen, apply
Loctite 242 or an equivalent for anti-loosening.
Model No.
Bore size
Set screw size
For the key, 1 place
For the shaft, 2 place
TGM3
TGM6
10~12
M4×8
M4×10
13~14
M4×6
M4×8
TGM20
14~16
M4×10
M4×12
17~20
M4×8
M4×10
TGM60
20~22
M5×16
M5×20
22~28
M5×12
M5×16
29~30
M5×12
M5×12
TGM200
28~30
M6×25
M6×30
31~40
M6×20
M6×25
41~50
M6×16
M6×20
TGM400
TGM800
38~45
M8×25
M8×30
46~55
M8×20
M8×25
56~60
M8×16
M8×20
Table 2
