RGH20 installation drawing (RESR ‘A’ section ring shown)
Dimensions and tolerances in mm
2 mounting holes
M3 x 0.5 through
15.6 (for RGH20 variants D, X, Z, W, Y, H, I, O, B)
11.3 (for RGH20 variant F)
13.5
6.75
3
7.8
0.09
(Roll tol. ±1°)
Ring and readhead
optical centreline
0.6
(Pitch tol. ±1°)
0.3
(Yaw tol. ±0.5°)
12.8
5.5
Set-up LED
(except RGH20F)
4 min
36
22.5
16.5
11.6
9.5
3.8
4.8
0.8 ±0.08
>R20 dynamic bend radius
>R10 static bend radius
Ø4.2 ±
0.2
Reference mark sensor /
limit switch sensor position
Ring and readhead
optical centreline
A-9559-0650
9.75
4.1
1.5
11.6
10
5
3
Limit switch installation
A-9531-0251*
* Mount limit switch actuator with dimple facing readhead
A
A
Datum A passes through
RESR centre of rotation
0.8 -0.1
+0.2
See note
✝
( )
✝
Required nominal 0.8 gap can be set using blue readhead spacer (supplied) positioned between readhead and actuator when positioning/fi xing the actuator.
‘Forward’ direction of ring (increasing count)