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| Bearing help needed |
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| CHA5:
Help, I've never worked with bearings. All of my previous parts have been simple 2d/3d single items but this one is going to be very complex. From the Solidworks image. I need to fit a roller bearing & a plain bearing into the blue highlighted lever. The lever can be anything from 6mm-10mm but I have no idea how to fit a bearing in there. Will I have to ream the hole then press or loktite in the bearing? Won't the nut & bolt lock it all up anyways? The lever needs to be able to move freely, the black item is a hydraulic master cylinder which needs to be operated by a thumb activated lever. |
| Manxmodder:
CHA5, I think you probably need to provide us with a bit more detail of the speed and loads the bearings are going to be encountering and is this just for providing a couple of pivot points in a lever mechanism or is there high speed high rpm involved. Initially looking at your application there may be a simple solution by fitting plastic polymer bush bearings,such as the ones sold by igus bearings in their thin walled bush selection. Link to igus below,have a browse to see if you can find similar applications on their site.....OZ. http://www.igus.co.uk/iglidur |
| CHA5:
It'll need to move in an arc of approx 30deg. It's just a thumb operated lever activating a brake MC, used infrequently with very little pressure applied. It needs to be a roller bearing for 'feel' rather than an engineering reason. |
| Jonny:
Design in and fit one of these for the pivot MR106ZZ which is 6mm bore x 10 o/d x 3mm thick. Tension up to get the feel guaranteed to work. Just drill through for the bore and counterbore with a 3 flute 2.8mm deep, easy. |
| Manxmodder:
--- Quote from: CHA5 on April 10, 2014, 05:04:25 PM ---It'll need to move in an arc of approx 30deg. It's just a thumb operated lever activating a brake MC, used infrequently with very little pressure applied. It needs to be a roller bearing for 'feel' rather than an engineering reason. --- End quote --- CHA5, I don't understand why you believe you will get better feel using a roller bearing than a plain low friction bush. I use ball bearings,roller bearings and plastic polymer bearings quite frequently on projects and I don't see anything within your application that would persuade me to fit a roller bearing. |
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