Linear guideways ( complete program ) - HIWIN - #69

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Text version of the page
Hiwm
G99TE13-0809
13 io
L= (-pj-l • 100km=( 62mile
Eq. 2.4
P
If the environmental factors are taken into consideration, the nominal life will be influenced greatly by the motion conditions, the hardness of the raceway, and the temperature of the linear guideway. The relationship between these factors is expressed in Eq.2.5.
L-(fh • ft • c
fh • ft • c
l
Eq. 2.5
100km=
62mile
L : Nominal life
P : Calculated load
C : Basic dynamic load rating
fh : Hardness factor ft : Temperature factor fw : Load factor
Where, the hardness factor, the temperature factor and the load factor are the same as a ball-type guideway. Compared with conventional linear ball-type guideways, the RG series linear guideway has a higher load capacity that allows it to achieve a longer service life.
(5) Durability test
H
©
a
JL.
1
f JL.
T
©
[
L
1
1
Model of the test system
Table 2.56
Tested model 1: RGH35CA
Preload: ZA class Max. Speed: 60m/min Acceleration: 1G Stroke: 0.55m
Lubrication: grease held every 100km
External: 15kN
Traveling distance: 1135km
Test results:
The nominal life of the model is 1000km.
After the traveling distance, fatigue flaking did not
appear on the surface of the raceway or rollers.
Tested model 2: RGW35CC
Preload: ZA class Max. Speed: 120m/min Acceleration: 1G Stroke: 2m
Lubrication: oil feed rate: 0.3cm3/hr External load: 0kN Traveling distance: 15000km
Test results:
Fatigue flaking did not appear on the surface of the raceway or rollers after a distance of (15000km).
Note: The data listed are from these samples.

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