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General Bobcat Skidsteer Forum
Line Boring my Quicktach Bores
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<blockquote data-quote="TriHonu" data-source="post: 34953" data-attributes="member: 897"><p>Thanks OldMachinist.</p><p>Tazza - the bearings themselves are not self aligning, however the bearings have a spherical outer race. There is no "keeper" in the flange. The bearing is set on edge in the bearing insertion slot and rotated into the spherical groove. This groove allows the bearing to be placed out of square with the flange. There is a limit to the amount. I would guess it is 5-10 degrees retaining full radial support.</p><p>There is an anti-rotation pin that should stay within the bearing insertion slot.</p><p>The actual bearing is a UC205 series. The -16 is 16 sixteenths of an inch or 1 inch.</p><p><a href="http://www.thebigbearingstore.com/servlet/the-249/UC205-dsh-16-1%22-Insert-Bearing/Detail" target="_blank"><span style="color: #0000ff">The Big Bearing Store</span></a> has quite a selection. These are a general duty bearing.</p><p>The pic below should fill in the gaps. I would think you would be able to get the metric equivalent locally.</p><p> <img src="https://www.skidsteerforum.com/Portals/57ad7180-c5e7-49f5-b282-c6475cdb7ee7/TTTGallery/LineBoring/BearingInfo.jpg" alt="" class="fr-fic fr-dii fr-draggable " style="" /></p><p>My friend who helped me has a magnetic drill. I thought about using it however the problem remained of how to insure the bit would accurately pass through both ears. </p><p>I had considered welding in my bores and re-boring to factory size. However this is not a large hole and clearance and rigidity of the boring bar become a concern, especially when machining through a weld with slag inclusions. My backup plan was if the bore was bored too oversize, I would just machine my own bushings out of some 4140.</p></blockquote><p></p>
[QUOTE="TriHonu, post: 34953, member: 897"] Thanks OldMachinist. Tazza - the bearings themselves are not self aligning, however the bearings have a spherical outer race. There is no “keeper“ in the flange. The bearing is set on edge in the bearing insertion slot and rotated into the spherical groove. This groove allows the bearing to be placed out of square with the flange. There is a limit to the amount. I would guess it is 5-10 degrees retaining full radial support. There is an anti-rotation pin that should stay within the bearing insertion slot. The actual bearing is a UC205 series. The -16 is 16 sixteenths of an inch or 1 inch. [URL='http://www.thebigbearingstore.com/servlet/the-249/UC205-dsh-16-1%22-Insert-Bearing/Detail'][COLOR=#0000ff]The Big Bearing Store[/COLOR][/URL] has quite a selection. These are a general duty bearing. The pic below should fill in the gaps. I would think you would be able to get the metric equivalent locally. [IMG]https://www.skidsteerforum.com/Portals/57ad7180-c5e7-49f5-b282-c6475cdb7ee7/TTTGallery/LineBoring/BearingInfo.jpg[/IMG] My friend who helped me has a magnetic drill. I thought about using it however the problem remained of how to insure the bit would accurately pass through both ears. I had considered welding in my bores and re-boring to factory size. However this is not a large hole and clearance and rigidity of the boring bar become a concern, especially when machining through a weld with slag inclusions. My backup plan was if the bore was bored too oversize, I would just machine my own bushings out of some 4140. [/QUOTE]
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Line Boring my Quicktach Bores
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