Does anyone recommend a supplier of about 2 metres of approx 60mm od steel pipe with a wall thickness of at least 5mm? It is a repair project on an old tractor winch. The pipe that fits the bill appears to be 2" schedule 80 but schedule 160 may be better.
I am hoping to get spend below £100 and most of the metal supermarket type outlets are a bit expensive.
Thanks for that i will check the wall thickness and look for a damaged one, propshafts and scaffold pipe not thick enough walls. I need to machine and fit bearings
I guess you don't need to fit bearings into a 2 metre length? That would require a fairly big lathe. Another option might be to machine bearing carriers with a suitable spigot from solid, and simply weld them to scaffold / acrow tube.
Yes that water pipe would do at a squeeze but probably wouldn't stand the abuse, I'd put a picture up of a failed one but not sure what free picture hosting exists anymore.
Tim's idea worked, it will be slightly over budget with VAT and 10quid carriage but a smooth bore pipe from hydraulic services 60mmOD 45mmID cut into two pieces for posting is £45. I just have to work out the best place to cut now.
Eight of them are going to blow the budget. I did wonder about just using solid bar with flanged bearings or plummer blocks / pillow blocks but same point applies.
Although Alibaba seems to offer flanged bearings with 30mm bore for under $5.
It might well be. The standard wall is notionally 3/16" thick, but there are thick and extra thick wall versions, to take higher pressures. The OD stays at 2 3/8", so they can all use the same fittings, but the bore reduces to suit.
Tempting to try but traveling would make a dent in the saving. There can be up to 4 tonnes loading on these rollers and if they jam the wire rope cuts into them swiftly.
The rollers are different lengths with the vertical ones at about 200mm and the horizontal about 150mm so the actual length required is
4*150+4*200=1400mm so 2m gives a bit to play with or I can just order 1.5m
The bearing at each end is a rubber shielded greased for life SKF 6205 and they last used to last about 5 years when we used the machine regularly but it has lain idle and they have all rusted up. Cheap ones cost about £3.50 each so if I replace them all that adds £28. Then I just need to have 0.2mm turned off the inner face of each roller to take the 15mm width of bearing.
I was tempted to drill a grease hole and nipple in the axle shaft and pack the space between axle and roller with grease
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