
VIONiC REXM20/REXT20 installation guide
4
R > 30 Dynamic bend radius
R > 10 Static bend radius
Ring and readhead
optical centreline
Ø4.25 ±0.25
0.6
35
23
11.5
6 min
Forward direction of ring
(increasing count)
4.6
18
0.25
29
Optical centreline
(incremental and reference mark)
0.08
(Roll tol. ±0.5°)
13.5
6.75 ±0.5
Set-up LED
8.75
*
10
Mounting faces
4.15
4.25
(Yaw tol. ±0.4°)
Rideheight: 2.1 ±0.15
(Pitch tolerance: ±1°)
2 mounting holes M2.5 through, counterbored Ø3 × 2.3 deep both sides
NOTE:
The recommended thread engagement is 5 min (7.5 including counterbore)
and the recommended tightening torque is between 0.25 and 0.4 Nm.
VIONiC readhead installation drawing
Dimensions and tolerances in mm
* Extent of mounting face.
NOTES:
Ring centreline refers to the centre of the ring based on the full thickness, i.e., including the raised flat portion.
External magnetic fields greater than 6 mT, in the vicinity of the readhead, may cause false activation of the limit and reference sensors.