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REXM20/REXT20 ring mounting
•
The REXM/ REXT ring should be flange mounted onto a flat surface to minimise 2-per-rev distortion.
•
Taper mounting is not suitable for thick cross-section REXM/ REXT rings.
•
To avoid distorting the ring, the REXM/REXT should not be interference fitted.
•
Some eccentricity of the ring is acceptable because it will be compensated using two readheads.
Mounting shaft geometry
The shaft must have a flat mounting surface to match the diameter of the mounting face (D2
lower side of the REXM20/REXT20.
The total axial run-out of the mounting surface should be within 10 μm.
1
N holes
× M5 × 10
deep equispaced
1
Refer to
'REXM20/REXT20 specifications'
on page
16
TONiC
REXM20 / REXT20 angle encoder system installation guide
™
(< D1
1
− 0.75)
0.01
A
1
D4
D2
1
14
for dimension and hole information.
1
) on the
A
Ø0.2
A
Dimensions and tolerances in mm
≥ 0.375
D4
1
1
D1
D2
1
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