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Assembly and Operating Instructions – Gear Units R..7, F..7, K..7, K..9, S..7, SPIROPLAN® W
5
Helical-worm and SPIROPLAN
®
W gear units
Startup
5.3
Helical-worm and SPIROPLAN
®
W gear units
5.3.1
Run-in period
SPIROPLAN
®
and helical-worm gear units require a running-in period of at least 48 h
before reaching their maximum efficiency. A separate run-in period applies for each
direction of rotation if the gear unit is operated in both directions of rotation. The table
shows the average power reduction during the run-in period.
Helical-worm gear
units
SPIROPLAN
®
gear units
Worm
i range
η
reduction
1-start
approx. 50 ... 280
approx. 1 %
2-start
approx. 20 ... 75
approx. 6%
3-start
approx. 20 ... 90
approx. 3%
4-start
-
-
5-start
approx. 6 ... 25
approx. 3%
6-start
approx. 7 ... 25
approx. 2%
W10 / W20 / W30
W37 / W47
i range
η
reduction
i range
η
reduction
approx. 35 ... 75
approx. 15%
approx. 20 ... 35
approx. 10%
approx. 10 ... 20
approx. 8%
approx. 30...70
approx. 8%
approx. 8
approx. 5%
approx. 10 ... 30
approx. 5%
approx. 6
approx. 3%
approx. 3...10
approx. 3%
0
0
I
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