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3. Life
3. Life
The mechanical life of the actuator is represented by that of the guide receiving the greatest moment
load.Operation life of the linear guide is to be determined by the total driving distance which can reach
without having 90% flaking (peeling on rail surface).
Operation life can be figured out with the calculation method shown below.
3.1 How to Calculate Operaition Life
For the operation life of the linear guide, use the dynamic allowable moment stated in 2. Specifications, and
figure out with the formula below.
㻌㻌L =㻌 㻌㻌㻌
䞉URL
㻌㻌㻌㻌L : Operaition life (km)㻌 C
M
: Dynamic allowable moment (N䡡m)
㻌㻌㻌㻌M : Moment to work (N䡡m)㻌 URL : Standard rated life
In addition, have a calculation for the drop of life with the formula below if there is a concern that the life
could drop due to the condition of vibration or way to be attached.
㻌㻌㻌㻌
L = 㻌㻌㻌㻌䞉㻌㻌㻌㻌䞉㻌㻌㻌㻌㻌䞉URL
㻌㻌㻌㻌L : Operaition life (km)㻌 C
M
: Dynamic allowable moment (N䡡m)
M : Moment to work (N䡡m)㻌 f
ws
: Standard operational coefficient
f
w
:Load coefficient㻌 f䃐 : Attachment coefficient
㻌㻌㻌㻌URL : Standard rated life (km)
Explained below is regarding the standard operational coefficient f
ws
, load coefficient f
w
, attachment
coefficient f
䃐 and Standard rated life URL.
Refer to the contents below to set them up.
[Standard operational coefficient f
ws
]
For ROBO Cylinders described in this manual, f
ws
= 1.2. It is a coefficient defined for each model, some
models such as RCS3 high-speed type is 1.35.
C
M
M
3
C
M
M
3
f
w
f
ws
1
f
䃐
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