Mounting; General Installation Guidelines; Installation For Compressive/Tensile Loading - HBM U1A Notice De Montage

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11.2 Mounting

11.2.1
Three force introduction variants are available:
• Force introduction Code A: centre−pin (for compressive loading and
• Force introduction Code B: external thread
• Force introduction Code C: internal thread
Forces must pass into the transducer vertically, though the particular force
introduction and the load−bearing plate. Torsional and bending moments,
eccentric loading, or side forces are disturbance variables and falsify the
measurement result. Side forces also include the relevant components of
forces introduced diagonally.
If you wish, you can mount the transducer by using one of the three holes in
the base of the housing (starting torque: 4Nm).
11.2.2
Compressive forces can be introduced directly without additional assistance.
The hardness of the upper load−introduction surface should be > 42 HRc, so
that a pressure mark is not made at the point of contact.
Force introduction
Code A
centre pin Ø2.5
compressive loading
(tensile loading with
coupling piece)
Fig. 4.4: Force introduction variants
HBM

General installation guidelines

tensile loading only with coupling)
(for compressive or tensile loading)
(for compressive or tensile loading)

Installation for compressive/tensile loading

Force introduction
Code B
external thread M5
tensile/compressive loading
Force introduction
Code C
internal thread M5
tensile/compressive loading
a0279-4.0 de/en/fr
U1A