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Installation drawing: EVOLUTE readhead
Orientation of scale
determines count direction
Moving head
increases count
direction
Moving head
increases count
direction
16.5
6.4
17.2
7.8
0.75 ±1
*Extent of mounting faces.
Recommended thread engagement 5 mm (8 mm including counterbore). Recommended tightening torque 0.5 to 0.7 Nm.
†
EVOLUTE RTLA50/FASTRACK installation guide
(Yaw tol. ±0.75°)
18
Note: Reversing head orientation
has no effect on count direction.
R>20 Dynamic bend radius
R>10 Static bend radius
(Roll tol. ±0.5°)
0.05
Scale and optical centreline
0.47
6.5 min
36
18
12
3
Optical centreline
Set-up LED
Rideheight 0.6 ±0.25 from
FASTRACK top surface
14
10 typ*
2 mounting holes M3 through,
counterbored each side, 3 deep
6 typ*
A
(Pitch tol. ±0.5°)
0.31
Dimensions and tolerances in mm
Detail A
0.4 FASTRACK
thickness
†
3
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