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05-02-2021, 11:17 PM #1
Industrial screw compressor thrust bearing checks
Each brand of screw compressor has different recommendations on thrust bearing checks.
Do you follow recommendations by OEM, or do your own thing.Last edited by RANGER1; 06-02-2021 at 09:31 AM.
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07-02-2021, 10:26 AM #2
Re: Industrial screw compressor thrust bearing checks
Hi Ranger1,
I am convinced that the compressor manufacturer has the greatest overview of what kind of repair needs to be done and after how many operating hours. I personally follow the manufacturer's recommendations.
Josef.
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07-02-2021, 10:36 AM #3
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07-02-2021, 10:51 AM #4
Re: Industrial screw compressor thrust bearing checks
In general, yes, I think the same.
Josef.
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07-02-2021, 10:25 PM #5
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08-02-2021, 02:47 PM #6
Re: Industrial screw compressor thrust bearing checks
I dont understand why the different production factory have different example,
SAB 163 0,05 mm.
0n frick 233 its 0.2.0max
and on Sab 202 ,0,15
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08-02-2021, 03:01 PM #7
Re: Industrial screw compressor thrust bearing checks
it is crazy because we have almost same diameter.
Sorry I must say that HOWDEN 255 try to teach 0,05 mm.
What I think is too small.
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08-02-2021, 03:16 PM #8
Re: Industrial screw compressor thrust bearing checks
Concernig overhaul time everybody should have instrument for noise and heating bearings.
To check.
I dont have it is cost a lot off money.
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08-02-2021, 06:48 PM #9
Re: Industrial screw compressor thrust bearing checks
HOWDEN 255 has about 0.1mm to 0.18mm clearance
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08-02-2021, 09:28 PM #10
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08-02-2021, 09:31 PM #11
Re: Industrial screw compressor thrust bearing checks
So would you check thrust bearings every year like manufacture recommends Howden & GEA.
Only ones suggesting it in industrial.
GEA wants face gap check every 5000 hrs.
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10-02-2021, 04:07 PM #12
Re: Industrial screw compressor thrust bearing checks
Ok my mistake , but if HOWDEN 204 try to reach 0.05mm. It is also big difference concerning other compressors.
If others have same diameter on rotors.
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10-02-2021, 06:53 PM #13
Re: Industrial screw compressor thrust bearing checks
I dont think the end clearance is too critical if over-size by a few hundredths of a mm. If it's too smal i could be a problem because of rotors interfering with suction cover.
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10-02-2021, 08:03 PM #14
Re: Industrial screw compressor thrust bearing checks
I think AKI refers to example Howden WRV205 standard discharge end clearance 0.05 to 0.075mm
Frick 193 0.16 to 0.24mm.
big difference but works apparently.
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11-02-2021, 02:54 AM #15
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Re: Industrial screw compressor thrust bearing checks
Hi
In Bitzer Screw
0.03 to 0.05 mm
Mbc
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11-02-2021, 08:48 AM #16
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11-02-2021, 01:02 PM #17
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Re: Industrial screw compressor thrust bearing checks
Hi
I could not attached this file
In Bitzer Docs.
SW-110-2.pdf
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11-02-2021, 01:20 PM #18
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Re: Industrial screw compressor thrust bearing checks
Hi
2.jpg
this is page 3 of that docs
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11-02-2021, 01:28 PM #19
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Re: Industrial screw compressor thrust bearing checks
hi
hope help
sw-170-1.pdf
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11-02-2021, 02:49 PM #20
Re: Industrial screw compressor thrust bearing checks
Is Bitzer have that size of compressor like SAB202 or FRICK193 ?
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11-02-2021, 03:09 PM #21
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Re: Industrial screw compressor thrust bearing checks
Hi
Mainly Bitzer works on Frion compressor
Size up to 320 hp.
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11-02-2021, 08:15 PM #22
Re: Industrial screw compressor thrust bearing checks
mbc,
Thanks, I presume similar for ammonia operation, very open recommendation, but as they say depends on system, use vibration analysis.
Had a semi hermetic run 120,000 hours, nothing wrong, decommissioned, so who knows how long it could have run for. It was regularly checked wih VA.Last edited by RANGER1; 11-02-2021 at 08:36 PM.
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11-02-2021, 09:12 PM #23
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Re: Industrial screw compressor thrust bearing checks
Hi Renger
It depends of
cleaning of system
Oil type .
Oil temperature
Returning of liquid from system
Sound and vibration analysis shows every thing
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02-03-2021, 11:54 PM #24
Re: Industrial screw compressor thrust bearing checks
It's impossible to make anything foolproof because fools are so ingenious...
Don't ever underestimate the power of stupid people when they are in large groups.
Please, don't teach me how to be stupid....
No job is as important as to jeopardize the safety of you or those that you work with.