Perma Star Control Time - Examples for Determining Proper Dip Switch Settings to Achieve Optimal Lubrication

perma STAR CONTROL TIME
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7.3.1 Examples for determining proper dip switch settings to achieve optimal
lubrication
In the “normal mode” (per 100 operating hours)
Example 1:
A roller bearing is to be provided with 14 cm
3
of lubricant every 500 hours of
operation: 14 cm
3
÷ 500 h = 0.028 cm
3
per h = 2.8 cm
3
per 100 h
The discharge table in chapt. 7.3 on page 14 shows that 3 different settings are
possible for each LC unit size
Variation I:
2.78 cm
3
/100 h for a 60 cm
3
LC unit (S60)
Variation II:
2.78 cm
3
/100 h for a 120 cm
3
LC unit (M120)
Variation III:
2.89 cm
3
/100 h for a 250 cm
3
LC unit (L250)
At this point, you can calculate the total discharge life of the LC unit (and the ex
change date). Proceed as following:
The roller bearing to be lubricated is installed in a machine which runs 5 days per
week 8 hours per working day.
To Variation I: 60 cm
3
LC unit (S60)
2.78 cm
3
/100 h = 0.0278 cm
3
/h
60 cm
3
: 0.0278 cm
3
/h = 2158.3 h
2158.3 h : 40 h/week = 54 weeks
The lubricant is sufcent for more than 1 year, not including additional operational
breaks or any other machine standstills.
Vol.Time
3
4
1 2
Vol.Time
3
4
1 2
Vol.Time
3
4
1 2