6 Technical data
All dimensions in mm unless otherwise stated.
6.5
Tightening torques for bolt connections
CAUTION
Use Loctite
®
before fastening.
Do NOT use air powered tools.
M4
M5
M6
M8
M10
M12
M14
M16
M18
M20
M22
M24
3Nm
6Nm
11Nm
26Nm
51Nm
88Nm
141Nm
218Nm
308Nm
439Nm
582Nm
724Nm
6.6
Shaft alignment
Shaft to be aligned in bearing frame or in gear motor.
RPM up to:
50
100
500
1000
2800
U (max radial tolerance, ALS/ALB)
0.4
0.3
0.2
0.1
0.05
U
TD605-106
4303-0056
After propellers has been welded onto the shaft and / or two shaft parts has been welded together - the shaft must be
aligned. If the shafts has been welded according to Alfa Lavals recommendations shown below – the required alignment will
be very little as the amount of introduced heat to the shaft is minimized and due to the fact that all shafts has been aligned
before delivery from Alfa Laval.
“All-weld shaft connections and propellers to shaft with one welding seam at a time, cool with air and continue with one
welding until welding is according to illustration. Use welding procedures which introduce as less heat, tension and bending
to the shaft as possible.”
34
