Catalogue LM Guide Actuator KR
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Conditioi
Model to be evaluated LM guide section Ball screw section Supporting bearing
Mass
Velocity
Acceleration
Stroke
Gravitational acceleration Velocity chart
: KR5520A (C=38100 N, C0=61900 N) (Ca=3620 N, C0a=9290 N) (Ca=7600 N, P0a=3990 N) m=30 kg v=500 mm/s a=2.4 m/s2 R S=1200 mm
=9.807 m/s2
g
See figure below.
(mm/s) v
m.-»m
193
0.21
2.19
0.21
(s)
52.5
1095
52.5
(mm)
2.61
(s)
1200
(mm)
Thrust force center
40,
O Evaluations
Q Evaluating the Rated Life Span of the LM Guide ^
* Imposed load of the nut block
* Since one nut block is used, the MA and MB moments are multiplied by the moment equivalent coefficient (Ka=Kb=8.63x10-2) to convert to the imposed load.
* Since one shaft is used, the acting MC moment is multiplied by the moment equivalent coefficient (Kc=2.83x10-2) to convert to the imposed load.
During uniform motion
P1=mg+KC«mgx40=627 N During acceleration
P1a=P1+KA*max 193=1826 N
P1aT=1KB«max40=-249 N During deceleration
P1d=P1-KA*max193=-572 N
P1dT=KB'imax40=249 N * P1aT and P1d are taken to be zero as the load groove is different from the evaluated groove.
Combined radial and thrust load
During uniform motion
P1E=P1= 627 N During acceleration
P =P +P =1826 N
1aE 1a 1aT
During deceleration P1dE=P1d+P1dT=249 N
11 TKIK
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