| Gallery, Projects and General > How do I?? |
| What grease for all metal oldhamn coupling |
| (1/2) > >> |
| PekkaNF:
There is a miniscule oldhamn coupling between electric motor 1500 or 3000 rpm and 0,55 or 0,75 kW. The coupling part is really small 14/10 mm diameter and looks like hardened steel. What kind of grease goes for it? Pekka |
| awemawson:
What ever spec it needs to be a very 'clingy' grease to not be flung out at that speed. I've recently bought a tube of specially formulated 'chuck grease' that probably has the right characteristics - basically a white lithium grease but made to be very tenacious. Downside is it's a very silly price - that standard grease cartridge was £27.70 plus carriage and VAT http://www.schunk.com/schunk/schunk_websites/products/products_level_3/product_level_3_lathe_chucks/product_level_3_lathe_chucks_accessories_2.html?product_level_1=245&product_level_2=264&product_level_3=7776&country=INT&lngCode=EN&lngCode2=EN |
| PekkaNF:
Jeah, I know what you mean. I do have some very adhessive grease that does not separate, but NLGI is only 1, it's not very viscous. I think that pressures are very large, but movement is very small even close to fretting/scuffing. Effective dia is only 13-14 mm and "key" is 4,52 x 8,00 mm and 7,1 x 5,12 mm. Electric motor shaft is D14 mm and key 5x5 mm. Pekka |
| awemawson:
If we could think of a way of safely getting it to you, you'd be welcome to a little squeeze of it. |
| tom osselton:
Would a chain lube work better? |
| Navigation |
| Message Index |
| Next page |