Nidec RINDCODE NRX Series Instruction Manual page 14

NRX - -G
with planetary reducer
NRX - -W
with worm reducer
● When reassembly of the speed change and reduction sections is complete after disassembly, adjust pressure contact force
according to the following procedure.
● When reassembling the speed change section, move the ring to the low speed end (output shaft) in advance.
● Procedure
(1) Remove the top cover in the speed change section, look into the inside, and adjust pressure contact force according to the following procedure.
(2) Only for W type (with worm reducer), loosen the hexagon socket set screw. *Refer to the disassembly and reassembly diagram for the worm reducer section on page 19
NRX □ -200B to 2200-G □
NRX □ -200B to 2200-W □
Adjust by cam retainer backlash
(3) Hold the cam retainer with pliers, etc., and check that the total
backlash is within the range of values in the table below.
If backlash is too large or small, remove the bearing cover (HS blind
cover for W type), and adjust to the normal value by increasing or
decreasing the shim (0.1 mm to 0.2 mm thick).
Model
200B/400B
750/1500
2200
1° to 3°
(4) Only for W type (with worm reducer), tighten the hexagon socket set screw after shim (pressure contact force) adjustment.
(5) Set the dial.
* Refer to the procedure for the standard NRX □ on page 12.
Cam retainer backlash
1° to 3°
After adjusting to 1º to 3º,
add a shim 0.2 mm thick.
Cam retainer
Cam disc
NRX □ -3700 or larger -G □
NRX □ -3700 or larger -W □
NRX □ -11K to 18K-C □ H/L
Adjust by clearance between the cam disc and input cam
(3) Look into the inside of the speed drive, and check that clearance between
the cam disc and input cam is within the range of values in the table below.
If clearance is too large or small, remove the bearing cover (HS blind cover
for W type), and adjust to the normal value by increasing or decreasing the
shim (0.1 mm to 0.2 mm thick).
Model
Adjust clearance to 0 to 0.1 mm, and add a
3700 to 18K shim 0.1 mm to 0.15 mm thick (0.05 mm to 0.1
mm thick when applying pressure).
Cam retainer
Input cam
13
Clearance of the cam disc
Clearance
Cam disc