The nut rotates inside bearings and moves along the fixed long lead screw shaft. The drive motor moves with the nut, so inertia and critical speed problems associated with a long rotating shaft, are minimised.
Nominal screw diameter
d0 [mm]
32
Lead
Ph [mm]
20
d1
[mm]
30
Preload
Axial play
Nut inertia
Inn [kgmm2]
1 935
Max. nut transmissible torque
[Nm]
209
Max. nut transmissible axial load
[kN]
107
Screw dynamic capacity
Ca [kN]
49,8
Screw static capacity
141,2
Bearing dynamic capacity
78
Bearing static capacity
76,5
Ø1
50
Ø2
82
Ø3
119,5
Ø4
150
Ø5
120
Ø6
76
Ø7
56
L
132,4
L1
L2
3,8
L3
27,5
L4
89
L5
2,2
L6
17,4
L7
L8
15
L9
R1
0,8
R2
J1
135
J2
68
Z1xH1
6 x Ø9
Z2xH2
6 x M6
H3
M6 x 1
Note : Nut inertia can be optimised with an aluminium pulley support.