6. Life
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6. Life
The mechanical life of the actuator is represented by the guide that receives the moment load mostly.
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.
6.1 How to Calculate Operation Life
For the operation life of the linear guide, use the dynamic allowable moment stated in 1.2 Specifications,
and figure out with the formula below.
L = • 5,000km
L: Operation life (Km)
C
M
:
Allowable dynamic load moment (N•m)
M: Moment to work
(N•m)
5,000km: Standard rated life of ROBO Cylinder
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.
L =
• • •
5,000km
L: Operation life (Km)
C
M
:
Allowable dynamic load moment (N•m)
M: Moment to work
(N•m)
f
ws
: Standard operational coefficient
f
ws
: Load coefficient f
Į
: Attachment coefficient
5,000km: Standard rated life of ROBO Cylinder
Explained below is regarding the standard operational coefficient f
ws
, load coefficient f
w
and attachment
coefficient f
Į
.
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
ws
f
w
1
f
Į