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| Steenkamp:
Hi guys Here is a pic of the spindle outside done, bearing journals polished to size, with bearing on to test fit. Inside is drilled through with 16mm bit. Had to use a long masonry bit to finish the last little bit in the centre to break through. Still have to cut the 2 morse taper and threads for retaining everything. |
| Steenkamp:
Hi All. After a long silence on the Tom Senior vertical spindle front i have started some work on it again. In the time between i have acquired a Chipmaster lathe and have been refurbishing it. As luck would have it, as soon as i started work on it I stumbled across a Maho MH600P vertical mill spindle assembly! At a cost less than what the matched pair of angular contact bearings for the shop built spindle was! Well sofar i have cleaned up everything and saw the power feed issues the previous owner had with it after dissasembly. The first issue was that the powerfeed wouldnt move at high speed settings. I removed the small gearbox that drives it and dismantled it I immediatly found tje problem... the little gearbox was opened before and who ever put it back together again never seated the key properly and thus minimal torque was transmitted The second issue was that the dog clutch transmitting drive to the gear rack on the quill refused to stay engaged. That problem was caused by a tube that is supposed to have 4 ballbearing detents in them didnt have the balls in it. I found the balls in the pack of odd and ends the previous owner had thought had come from the assembly. Unfortunately my phone battery died by then so i could take no pictures. I want to mount it in a similar way as the pic For the horisontal bar i want to use a section of hollow bar and a flangeso i can use the heads rear drive to drive the spindle. Drive would be transmitted from the motor via belt and pulley arrangement to a driveshaft running in the hollow horisontal bar. I hope it comes across clearly. Any advice? |
| Steenkamp:
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| hanermo:
Fwiw.. Using the proper grease Kluber Isoflex NBU 15/ NCA15 - light loads, vertical or horizontal applications >500000 dN The critical speed dN with 30 mm inner D bearings, is 30 mm x 16.000 rpm = 480.000. So you can use kluber grease and it will work at 15.000 rpm for a 30 mm bearing (like Bridgeport M head). |
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