Interference Fit Method - Renishaw TONiC FS T40x1 Series Functional Safety Manual

Step 4
Step 5
Diameter Tightening
(mm) torque range
(Nm)
≤115 1.5 to 2.1
150 to 255 0.8 to 1.1
300 to 413
0.5 to 0.7
≥417 1.2 to 1.7
TONiC RESM20 Functional Safety installation guide and safety manual
X Insert screws into the remaining mounting holes.
X Rotate the RESM20 ring, measuring the radial
displacement at all of the screw locations.
X Tighten the screw with the lowest radial displacement so
that it matches the average radial displacement, whilst
ensuring the maximum torque specified in the table is
not exceeded.
X Again, rotate the RESM20 ring and re-check the radial
displacement at all of the screw locations, tightening
the screw with the lowest radial displacement so that it
matches the average.
X Repeat this process until the radial displacement at all
of the screw locations is within ±3 µm and that all screw
torques are within the specified range.
X Excessive tightening of screws can have a small effect
on accuracy. Please contact your local representative for
more details.
Interference fit method
Mounting shaft specifications
DO
DS
X Remove protective film from surface of RESM20.
X Clean the mounting faces of shaft and RESM20 as recommended
in 'Storage and handling' on page
NOTES:
X Do not lubricate the screws.
X Do not use a thread locking compound.
X Ensure that all screws are tightened to 1.6 Nm.
X Minimum thread engagement 6 mm.
X Recommended screw type M3 × 0.5 and must comply with:
ISO 4762/DIN 912 grade 10.9 minimum/
ANSI B18.3.1M.
Original instructions
DO (mm)
*
52
57
75
100
103
104
5.
115
150
200
206
209
229
255
300
350
413
NOTES:
X 417, 489 and 550 mm rings should
be taper mounted only.
X DO = Nominal external diameter.
DS = Recommended shaft
X
diameter to enable interference fit.
*
52 mm 'B' section ring =
DS (mm)
30.033
30.017
37.033
37.017
55.039
55.020
80.045
80.023
80.045
80.023
80.045
80.023
95.045
95.023
130.052
130.027
180.052
180.027
186.060
186.031
186.060
186.031
209.060
209.031
235.060
235.031
280.066
280.034
330.073
330.037
392.073
392.037
32.033
32.017.
11