Sunny brook Impeller taking out right side bearing - The Combine Forum
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post #1 of 25 (permalink) Old 09-22-2019, 06:39 PM Thread Starter
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Sunny brook Impeller taking out right side bearing

Heard of 6 combines this year taking out right side impeller bearing. 2 are ours. All have sunnybrook impellers. Anyone have a fix? 400 threshing hours on ours.

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post #2 of 25 (permalink) Old 09-22-2019, 07:19 PM
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Were the installs done by the same person/company? Possibly not locating the bearing on the shaft properly and placing side load on the bearing??

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post #3 of 25 (permalink) Old 09-22-2019, 07:51 PM Thread Starter
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Same company. Replaced the bearing myself. Not much to go wrong. Bearing did seem wimpy.
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post #4 of 25 (permalink) Old 09-22-2019, 09:23 PM
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The only thing I can think of would be side load on bearing. That is about the most trouble free bearing on the machine IMO. Fortunately, it should be easy to replace as far as I'm aware.
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post #5 of 25 (permalink) Old 09-23-2019, 12:03 AM
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We replaced one bearing on both machines this year. Right side. Have north of 1000 seperator hours on each.

Not a big deal to replace just annoying downtime to get bearings etc.

Last edited by drylandfarmer; 09-23-2019 at 12:06 AM.
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post #6 of 25 (permalink) Old 09-23-2019, 06:25 AM
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My new Lexion had the first one fail at 200hrs and the second bearing at 600hrs. I have heard the same bearing failing on non SB new Lexions as well around the 750xxxx serial number. You could hear a distinct change in running noise in the cab when adjusting the drum speed, that’s what brought it to my attention
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post #7 of 25 (permalink) Old 09-23-2019, 10:01 AM
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The impeller bearing is one of the bearings on a lexion you do not want to over grease of the type of seal. Most of the bearings and bushings can be over greased due to the felt seals. This bearing has a typical bearing seal that will push our if you put to much grease in it. I am guessing the problem is side load. Ball bearings die quickly if there is any side load.
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post #8 of 25 (permalink) Old 09-23-2019, 11:03 AM
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The right hand is the wimpy one so yeah they must have pootched the dimension.
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post #9 of 25 (permalink) Old 09-23-2019, 11:53 AM
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Would a bearing with a wider inner race fit?
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post #10 of 25 (permalink) Old 09-23-2019, 04:13 PM Thread Starter
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Quote:
Originally Posted by SouthernSK View Post
The impeller bearing is one of the bearings on a lexion you do not want to over grease of the type of seal. Most of the bearings and bushings can be over greased due to the felt seals. This bearing has a typical bearing seal that will push our if you put to much grease in it. I am guessing the problem is side load. Ball bearings die quickly if there is any side load.
Hopefully the autogreaser understands that lol.

Clearly a factory screw up. Bearing not beefy enough.

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