3 608 878 300
Tightening Technology |
Bosch Rexroth AG
67
System 350
| 3 608 878 300/2019-03
Angle head with
integrated
measurement
transducer
With the angle heads with integrated measurement transducer 3WMC and 4 WMC, the torque is
measured directly on the output drive shaft. This further increases the reliability of the tightening system
and, thus, the process reliability.
Feed output drive
Feed output drives are suitable for e. g. deep-set tightening positions or when using automatic bolt feeds.
With bolt feeds, a pneumatic cylinder with two adjustable limit switches enables the "up" movement for
the bolt feed and the "down" movement for the spindle guide.
Side-by-side
arrangement of
several spindles
The following diagrams help to check whether the spindles can be lined up in bolt-hole circles. The
tightening distance d
min
is the minimum tightening position diameter in a circular arrangement of spindles.
For special applications, the dimensional drawings of the output drives (e.g. accessible via the Internet at
www.boschrexroth.com/tightening
) are decisive.
The following table shows the available output drives and the resulting minimum circle diameters for all
sizes.
Table 4–3: Angle head
Code
2W011
3W027
3W050
3W090
4W130
4W220
Order number
0 608 810
041
0 608 810
042
0 608 810
043
0 608 810
044
0 608 810
045
0 608 810
046
Max. permissible axial force F (see
table
)
[N]
I
II
I
III
IV
IV
Table 4–4: Permissible axial forces
Characteristic number for axial
force
Max. permissible axial force F [N]
1
Currently existing torque T [Nm]
1
No axial force may be exerted in the tightening step where T = 0!
I
F = M
2,7 m
–1
II
F = M
2,9 m
–1
III
F = M
1,7 m
–1
IV
F = M
1,0 m
–1
Table 4–5:
Minimum spindle distances for size 2 to 5 spindles with various output drives
Number of tightening
spindles
and corresponding
smallest circle diameter-Ø
d
min
[mm]
Size
Type
2
3
4
5
6
Straight output drive
2
2G...
35
40
55
66
74
3
G...
42
52
65
80
89
4
G...
59
69
89
109
119
5
G...
86
100 131
162
172
Offset output drive
2
2VN...82
23
27
33
41
52
3
VN52 -152
29
33,5
41
49,5
58
4
VN...
44
51
63
75
88
VU...
57
66
81
97
114
VUK2D242 48
56
68
82
96
5
VN...
61
71
87
104
122
VU...
94
108 133
159
187
Summary of Contents for Rexroth Tightening System 350
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