24
Rossi
Operating instructions − UTD.045.06-2013.00_TR_EN
TR
EN
Painting table
Table of tightening torques for axial fastening bolts and shrink disc
2)
1) For worm gear reducers UNI 5931-84.
2) The bolts of shrink disc must be gradually and uniformly tightened, with continuous sequence (not diagonally!) and in several phases up to the reaching of maximum tightening torque stated on table.
1) For servo gear reducers (cat. SR) the final colors is matt black RAL 9005.
2) Integrated low backlash planetary servogearmotors.
3) Before adding further coats of paint, properly protect the seal rings and carefully degrease and sand the gear reducer surfaces.
Note
- Class 8.8 is usually sufficient.
- Before tightening the bolt be sure that the eventual centering of flanges are inserted properly
- The bolts are to be diagonally tightened with the maximum tightening torque.
Table of tightening torques fastening bolts (foot,
flange, hub clamps and flexible half-coupling bolts)
Table of tightening torques for plugs
Product
Size
Internal painting
External painting
Notes
Final color
Blue RAL 5010
Features
Worm
32 … 81
Epoxy powder
(prepainted)
Epoxy powder
(prepainted)
Resistant to atmospheric and
aggressive agents
(atmospheric corrosivity category
C3
according to ISO 12944-2)
Suitable for further coats of
dual-compound paints only
3)
Machined parts remain
unpainted and are protect-
ed with an easily removable
anti-rust oil (before painting
remove the protective oil)
Helical and
bevel helical
40 … 81
Coaxial type
32 … 41
Worm
100 … 250
Single-compound
ester epoxy or
phenolic resin
basis primer
(prepainted)
Single-compound ester
epoxy or phenolic resin
basis primer
(prepainted)
+
Water-soluble
polyacrylic
dual-compound enamel
Resistant to atmospheric
and aggressive agents
(atmospheric corrosivity category
C3
according to ISO 12944-2).
Suitable for further coats
of dual-compound paints
only
3)
Machined parts are pain-
ted wih water-soluble
polyacrylic dual-compound
enamel
The internal painting does
not resist polyglycol syn-
thetic oils (polyalphaolefines
synthetic oils are suitable).
Remove by a scraper or
solvent the possible paint
of gear reducer coupling
surfaces
Coaxial type
50 … 81
Helical and
bevel helical
100 … 631
Coaxial type
100 … 180
Right angle
(cat. L)
160 … 320
Right angle
(cat. L)
80 … 125
–
Water-soluble
polyacrylic
dual-compound enamel
Remove by a scraper or
solvent the possible paint
of gear reducer coupling
surfaces
Shaft mounted
Coaxial
2)
56 … 142
–
Dual-compound epoxy
polyamide primer
+
Water-soluble dual-com-
pound polyacrylic enam-
el (matt black RAL 9005)
Resistant to atmospheric
and aggressive agents
(atmospheric corrosivity category
C3
according to ISO 12944-2).
Suitable for further coats of
dual-compound paints only
3)
Machined parts remain
unpainted and are protect-
ed with an easily removable
anti-rust oil (before painting
remove the protective oil)
Bevel helical
2)
85 … 142
Worm gear
reducer size
32 40 50
– 63,
64 –
80,
81 100
125,
126 160 161 – 200 – 250 –
–
–
–
–
–
–
–
–
Helical and bevel
helical size
40 50
–
63 64 80 81 100 125 140 – 160 180 200 225 250 280 320,
321 360
400,
401
450,
451
500,
501
560,
561
630,
631
Bolts for axial fastening
UNI 5737-88
class 10.9
M8
1)
M8
1)
M10
1)
M10 M10 M10 M10 M12 M14 M16 M16 M20 M20 M24 M24 M30 M30 M36 M36 M30 M30 M36 M36 M36
M
s [N m]
for rings or bush
29 35
43
43 43 51 53
92 170 210 210 340 430 660 830 1350 1660 2570 3150 –
–
–
–
–
Bolts for axial fastening
UNI 5737-88
class 10.9
–
M5
–
M6 M6 M6
–
M8 M8 M8
– M10 M10 M12 M12 M16 M16 M16 M16 M20 M20 M20 M20 M24
M
s [N m]
for shrink disc
–
04
–
12 12 12
–
30
30
30
–
60
60 100 100 250 250 250 250 490 490 490 490 840
Bolt
Ms [N m]
UNI 5737-88, UNI 5931-84
cl. 8.8
cl. 10.9
cl. 12.9
M4
2,9
4
–
M5
6
8,5
10
M6
11
15
20
M8
25
35
40
M10
50
70
85
M12
85
120
145
M14
135
190
230
M16
205
290
350
M18
280
400
480
M20
400
560
680
M22
550
770
930
M24
710
1000
1200
M27
1000
1400
1700
M30
1380
1950
2350
M33
2000
2800
3400
M36
2500
3550
4200
M39
2950
4200
5000
M42
4100
5800
6900
M45
5000
7000
8400
M48
6100
8600
10300
M56
9800
13800
16500
Thread
dimension
M
s [N m]
G 1/4’’
7
16 MB
14
G 1/2’’
14
G 3/4’’
14
G 1’’
25
Attention!
Before tightening, carefully degrease the bolts.
For strong vibrations, heavy duties, frequent motion
reversals apply a thread-braking seal type Loxeal 23-18 or
equivalent.
