Stober PK - Permitted Shaft Loads for the Output Shaft

6.6.2 Permitted shaft loads for the output shaft
The values specified in the tables apply to the permitted shaft loads:
• For shaft dimensions in accordance with the catalog
• For output speeds n
2m*
≤ 20 rpm (F
2axN
= F
2ax20
; F
2radN
= F
2rad20
; M
2kN
= M
2k20
)
• Only if radial forces on the gear unit are stabilized by its pilots for the pitch circle diameter and flange
housing design
6.6.2.1 V shaft design
Permitted shaft loads for V shaft design (solid shaft)
Type z
2
F
2ax20
F
2rad20
F
2rad,acc
M
2k20
M
2k,acc
[mm] [N] [N] [N] [Nm] [Nm]
F1 35.0 1100 4200 4200 260 260
F2 41.0 1400 5400 5400 400 400
F3 43.0 1900 7500 7500 600 600
F4 44.0 2350 9250 9250 800 800
F6 44.0 3100 12500 12500 1200 1200
For other output speeds, download diagrams at https://configurator.stoeber.de/en-US/
.
The following applies to output speeds n
2m*
> 20 rpm:
2ax 20
2axN
2m*
3
1
F
F
n
20min
-
=
rpm
2rad20
2radN
2m*
3
1
F
F
n
20min
-
=
rpm
2k 20
2kN
2m*
3
1
M
M
n
20min
-
=
rpm
The values for F
2ax20
, F
2rad20
and M
2k20
can be found in the table "Permitted shaft loads" in this chapter.
Fig.2: Force application points for solid shaft
The specified values for F
2rad20
and F
2rad,acc
refer to an application of force at the center of the output shaft: x
2
= l/2.
Shaft dimensions can be found in the "Dimensional drawings" chapter.
The following applies to other force application points:
( )
× × + × +
=
2ax * 2 2rad,acc* 2 2
2k,acc*
2 F y F x z
M
1000
For applications with multiple axial and/or radial forces, you must add the forces as vectors.
In the event of EMERGENCY OFF operation (max. 1000 load changes), you can multiply the permitted forces
and torques for F
2ax20
, F
2rad20
and M
2k20
by a factor of two.
Also note the calculation for equivalent values:
× × + + × ×
=
× + + ×
3 3
2m,1* 1* 2k,acc,1* 2m,n* n* 2k,acc,n*
3
2k,eq*
2m,1* 1* 2m,n* n*
n t M ... n t M
M
n t ... n t
6 Foffset helical geared motors 6.6 Project configuration
181