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Implement Alley Discussion Forum

New Bearings

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Arnie

02-15-2004 06:00:42




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Have to put new bearings on gear shaft and have heard about heating so they slid on shaft is there any truth to this method? if so do you heat the bearing in an over and slid on shaft or how is this done? temp of oven and how long to keep bearing or shaft in the oven. thanks for any help given as i have never try thisor should I just press or pound them on




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Bill_SC

02-17-2004 05:41:35




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 Re: New Bearings in reply to Arnie, 02-15-2004 06:00:42  
I recently replaced mower deck shaft sealed bearings. I set the bearing on a dry waffle iron (smooth side of the grill up). 300 deg F, top open , 10 minutes. Dropped right on. Put anti-seize on the shaft ahead of time. Be sure it's fully seated. Push on inner race only. Good luck. Bill



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Dean

02-15-2004 19:21:42




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 Re: New Bearings in reply to Arnie, 02-15-2004 06:00:42  
Not sure what you're working on but if they are unsealed bearings heating them up works very well. At work we use an electric induction heater made by SKF and usually run them up to 250 to 300 deg F. I have known of guys to use a household electric skillet to heat up bearings with hot oil but there would be some obvious safety issues. The oven works too, or you can pack the shaft in dry ice or fit it into a freezer. You'll definitely need some good gloves for handling hot bearings or dry ice and take some careful measurements to make sure you get things where you want before the temperatures even out. Best of luck, Dean

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Arnie

02-17-2004 06:32:59




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 Re: Re: New Bearings in reply to Dean, 02-15-2004 19:21:42  
thanks to all for bearing installation. they were unsealed bearings, heated them and cooled shaft & they went right on thanks for help Arnie



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