HBM U10M, Mounting Instructions, Page: 20 / 128

U10M, U10S
20
A1385-6.2 en/de/fr HBM
Installation is facilitated by centering aids on the top and bottom sides of the
transducer. The admissible centering depth on the bottom side is equivalent to
the dimension Z (see Page 38). In order to transfer the lateral forces specified
in the data sheet, we recommend using the centering aids.
The customers's own structural elements (contact surfaces) must meet the
following conditions:

They must be in parallel to each other.

They must be paint‐free.

They must be oil and grease‐free, cleaning can be implemented e.g. with
RMS-1 (HBM order number 1-RMS1).

They must be sufficiently hard (minimum HRC 40).

They must be sufficiently rigid so that they do not warp.

The flatness of the contact surface is ideal when a tolerance of 0.005 mm
is not exceeded under load.

The screws used must comply with the property class specified in the
following table and tightened with the specified tightening torque. The
strength of the threaded holes must be high enough so that screws of the
specified property class can be used.
Nominal
(rated)
force
in kN
Tightening torque
M
B
*)
in N

m
Screws for transducer mounting
Number Metric
Property
class
UNF Grade
1.25 - 5 9 8 M6 x 40 8.8
1/4
"
5
12.5 - 25 15 8 M6 x 40 10.9 1/4
"
8
50 - 125 76 12 M10 x 1.25 x 55 10.9 3/8
"
8
225 - 250 150 16 M12 x 1.25 x 80 12.9
1/2
"
9
450 - 500 380 16 M16 x 1.5 x 100 12.9 5/8
"
9
*)
Screws lightly oiled
M
B
M
B
Fig. 5.2: Installation without adapter
Mount the screws in diagonally opposite sequence: After tightening one
screw, continue with the screw opposite. Do not apply the specified torque
immediately, increase the tightening torque in several steps. Initially, the