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A.0500.551 – IM-TGMAG/02.00 EN (02/2008)
3.11 Mass moment of inertia
TG MAG pump size 15-50 23-65 58-80 86-100 185-125
J (10-3 x kgm²) 3.5 6.8 32 54 200
Inner parts:
Idler
Rotor shaft
Axial rotor bearings
Shaft sleeve
Inner magnetic rotor
Outer parts:
Pump shaft
Outer magnetic rotor
Mass moment of inertia J [ 10
-3
x kgm
2
]
TG MAG outer parts per lenght of magnets inner parts per lenght of magnets
type 40/60 80 100 120 40/60 80 100 120
15-50
22 26 - - 8 9 - -
23-65
22 26 - - 10 12 - -
58-80
66 80 93 - 46 52 58 -
86-100
72 85 99 - 65 70 76 -
185-125
248 303 358 413 230 247 264 280
3.12 Axial and radial clearances
TG MAG pump size
15-50 23-65 58-80 86-100 185-125
radial clearance max (µm)
310 320 370 380 420
min (µm)
250 260 300 300 340
axial clearance max (µm)
200 215 250 275 320
min (µm)
120 125 150 165 190
3.13 Extra clearances
To handle extra clearances following clearance classes are defined:
C0 = Pump cover axial clearance set at minimum
C1 = Standard clearance (not indicated because standard)
C2 = ~2 x standard clearance
C3 = 3 x standard clearance
To indicate required clearances a code of 4 digits, xxxx, is given on the order.
The figure ‘‘1’’ stands always for ‘‘normal’’ and no special action is considered.
The indicated numbers in the tables below are average values in microns (µm).
Outer parts
Inner parts