Glossary entry (derived from question below)
German term or phrase:
Fangbohrung
English translation:
Locating/mounting hole
Added to glossary by
rjbemben
Jan 24, 2004 21:15
20 yrs ago
3 viewers *
German term
Fangbohrung
German to English
Tech/Engineering
DC Motors
"Lieferant der Eingangswelle auf Fehlermerkmal 'Rundlauf Fangbohrung' reklamieren...". The same 'Bohrung' is mentioned here: "Der Wellenschlag der Motorwelle betraegt __mm, die Bohrung der Eingangswelle zu deren Aussendurchmesser ___mm."
'Indexing hole' is all I come up with, but this meaning seems to relate to the registration holes used on PC boards.
"Lieferant der Eingangswelle auf Fehlermerkmal 'Rundlauf Fangbohrung' reklamieren...". The same 'Bohrung' is mentioned here: "Der Wellenschlag der Motorwelle betraegt __mm, die Bohrung der Eingangswelle zu deren Aussendurchmesser ___mm."
'Indexing hole' is all I come up with, but this meaning seems to relate to the registration holes used on PC boards.
Proposed translations
(English)
| 3 +1 | locating/mounting hole |
John Jory
|
| 4 | the drill of a pumpbox to fit a valve |
Brandis (X)
|
| 4 | borehole diameter vs.whip of shaft |
Wolf Brosius (X)
|
Proposed translations
+1
11 hrs
Selected
locating/mounting hole
As I read it, there is a locating/mounting hole at the end of the driving shaft, which is used for a shaft-to-shaft coupling.
Because the hole is slightly off-center by xx mm, the coupled shaft does not run true (Wellenschlag), which is the subject of the fault notice to the supplier.
"Shaft runout:
Radial shaft runout is the total variation in a direction perpendicular to the axis of rotation of a reference surface from a surface of revolution. Radial runout includes both eccentricity and out-of-roundness.
If runout is large, misalignment of shaft-to-shaft couplings or fixtures may occur. Misalignment, in turn, may subject the couplings, shafts, and bearings to excessive loads and premature wear."
(see ref)
Because the hole is slightly off-center by xx mm, the coupled shaft does not run true (Wellenschlag), which is the subject of the fault notice to the supplier.
"Shaft runout:
Radial shaft runout is the total variation in a direction perpendicular to the axis of rotation of a reference surface from a surface of revolution. Radial runout includes both eccentricity and out-of-roundness.
If runout is large, misalignment of shaft-to-shaft couplings or fixtures may occur. Misalignment, in turn, may subject the couplings, shafts, and bearings to excessive loads and premature wear."
(see ref)
4 KudoZ points awarded for this answer.
Comment: "Thanks John! At first I wasn't sure whether this hole was some sort of 'key' perpendicular to the shaft or concentric to the shaft - no photo - but the 'Wellenschlag' appears to clear that up. I used 'circular runout' prior to seeing your answer. That's the term I found at a GD&T web site. I wonder why they don't use 'Concentricity' where a hole and an outer diameter are involved? Well anyways you're answer was a big help! "
5 hrs
the drill of a pumpbox to fit a valve
the drill of a pumpbox to fit a valve = parts in Online.Dicts. took some detective work. It just fit. (Nautical Engg)
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Note added at 5 hrs 25 mins (2004-01-25 02:41:22 GMT)
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The indexing hole could be a marking hold to fit a valve.
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Note added at 5 hrs 26 mins (2004-01-25 02:41:50 GMT)
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clicked too fast, the confidence level should be 3
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Note added at 5 hrs 25 mins (2004-01-25 02:41:22 GMT)
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The indexing hole could be a marking hold to fit a valve.
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Note added at 5 hrs 26 mins (2004-01-25 02:41:50 GMT)
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clicked too fast, the confidence level should be 3
Peer comment(s):
| neutral |
Wolf Brosius (X)
: can't see where the valve come in.
5 hrs
|
|
I was not very sure of the valve aspect, but I had typed thinking loudly, hence also the adjustment to conf.3. "to fit whatever"if not valve, may be a threaded pipe of some sort. But that where the question leads to.
|
10 hrs
borehole diameter vs.whip of shaft
sounds to me that whip /Wellenschlag of a shaft can or has damaged a borehole,that may act as a safety feature or has dimensions that are smaller than the permissible whipping action of a shaft.HTH
Cheers
Wolf
Cheers
Wolf
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