Mounting Preparations; Before Designing The Mounts - Sony Magnescale SR118 Series Instruction Manual

3-2. Mounting Preparations

3-2-1. Before designing the mounts

If the mounting surfaces of the scale unit are machined
surfaces which satisfy the parallelism requirement noted
below, the scale unit may be mounted as is.
The parallelism of surfaces A, B and C with respect to the linear
movement axis (the slide reference axis of the linear guide,
etc.) should be 0.1 mm (0.004 in) or less.
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Surface A in the figure above is the setting surface. If a
surface A cannot be secured, a special jig or block should
be prepared beforehand in accordance with the mounting
conditions. (See the figure below.)
B
A
Mounting the scale unit improperly may shorten the service
life or result in poor performance. The mounting surfaces
and mounting tools should be designed according to the
following procedures.
C
Jig block Block gauge