
52
Operating Instructions – Explosion-Proof AC Motors DR63/eDR63, DVE250/280
9
Permitted ball bearing types
Technical Data
Motor constants for
overhung load
conversion
2nd motor shaft
end
Contact SEW-EURODRIVE regarding the permitted load for the 2nd motor shaft end.
9.2
Permitted ball bearing types
9.2.1
Category 3
The following table shows the permitted types of ball bearings:
9.3
Tightening torques
The following table shows all the tightening torques required for this procedure:
Size
a
[mm]
b
[mm]
c
f
[mm]
d
[mm]
l
[mm]
4-pole
[Nmm]
6-pole
[Nmm]
DR63, eDR63
161
146
16.8 • 10
3
19 • 10
3
13
14
30
DVE250
658
588
630 • 10
3
-
0
65
140
DVE280
658
588
630 • 10
3
-
0
75
140
Motor type
A-side bearing
(AC motor)
B-side bearing
(foot and flange-mounted motors,
gearmotors)
Gearmotor
Flange- and foot-
mounted motor
AC motor
DR63, eDR63
6303 2RS J C3
6203 2RS J C3
6202 2RS J C3
DVE250/280M
6316 2RS J C3
6315 2RS J C3
Key num-
ber
Screw
Applies to
Tightening
torque in Nm
[113]
Pan head screw DIN rail connection
DR63/eDR63
3
[117]
Hexagon screw grounding inside
DR63/eDR63
3
[123]
Hexagon screw terminal box cover
DR63/eDR63
3.5
[140]
Hexagon screw grounding outside
DR63/eDR63
3.5
[119]
Hex head screw terminal box lower part
DVE250/280
55
[123]
Hex head screw terminal box upper part
DVE250/280
55
P
i
f
kVA
Hz
n