Life; How To Calculate Operaition Life - IAI ROBO Cylinder RCP2 Series Operating Manual

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.
3
C
M
L = URL
M
L : Operaition life (km)
M : Moment to work (N m)
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.
C
M
L =
M
L : Operaition life (km)
M : Moment to work (N m) f
f : Load coefficient
w
URL : Standard rated life (km)
Explained below is regarding the standard operational coefficient f
coefficient f and Standard rated life URL.
Refer to the contents below to set them up.
[Standard operational coefficient f
For ROBO Cylinders described in this manual, f
models such as RCS3 high-speed type is 1.35.
C : Dynamic allowable moment (N m)
M
URL : Standard rated life
3
f
1
ws
URL
f
f
w
C : Dynamic allowable moment (N m)
M
: Standard operational coefficient
ws
f : Attachment coefficient
]
ws
= 1.2. It is a coefficient defined for each model, some
ws
, load coefficient f , attachment
ws w
33