Monorail Guidance Systems

Load carrying capacity and life
Static load safety factor The static load safety factor S 0 is the security against permanent
deformation at the rolling contact:
Application-oriented static load
safety factor
Application in machine tools
C
S0
= 0
P0
S
M
0 = 0
M
S0 –
Static load safety factor
C0 N
Basic static load rating in the load direction (for KUSE: C0I, C0II, C0III) according to dimension tables
P0 N
Equivalent static bearing load in load direction
M0 Nm
Basic static moment rating in load direction (M0x, M0y, M0z) according to dimension tables
M Nm
Equivalent static moment in load direction
P N
Equivalent dynamic load.
The equivalent static bearing load is determined in approximate
terms from the maximum loads:
P F
0 = max
M M
0 = max
Attention! Static load safety factor S 0 for design of linear guidance systems,
see tables starting page 24.
For the design of linear guidance systems, the static load safety
factor S 0 according to the following tables must be taken into
consideration.
Precondition S0 Critical case
8 to 12
■ High dynamic loading with one axis stationary
■ Severe contamination
■ Actual load parameters are not defined
■ Catalogue specifications for accuracy of adjacent
construction are not observed
Normal case
■ Not all load parameters are completely known
or:
■ Cutting forces are estimated from the performance data
of the machine
24 PF 1 Schaeffler Group Industrial
5 to 8
■ All load parameters are known 4 to 5
■ All load parameters are known
(and definitely correspond to reality)
3 to 4