I am concerned that if you order, and they just send you what they have , what happens if you need a spare/replacement ? will it fit ? or not ?
I am talking about ballnut housings and brackets. You will never need to replace that.
About the spindle, the only thing you could possibly replace there, are the 4 bearings, they sell them cheap at aliexpress. However possibly one day would be cheaper to buy a new one, depends how you value your time. 4 bearings cost ~20eur . I messed once with my spindle, but only because was desperate to finish an order, and because i want a bigger one, otherwise i would have simply bought a new one. Still works like a beast though.
About the ballscrews and nuts, i doubt you will ever need to replace any of them, but they are standard.
However things like HDT belts, HDT pulleys and so, i always buy extra, cause if i mess one, then have to pay extra shipping, they are cheap.
Thanks for your reply ... good info :)
I'm going to buy this one ... as it came up cheapest ... and they have a big feedback ... ?
Fingers crossed ...
Wholesale MATCHING 2.2KW INVERTER + ER20 SPINDLE MOTOR NEW update KM2045-in Other Machinery from Industry & Business on Aliexpress.com
too late :) ... paid :/
any way .. I'd like to try out the "ali" process and see if it works out ok .. the rails and bearings seem very cheap ! :)
one of my routers spun a bearing today (I have a couple of backups).. so it made the spindle issue more urgent :)
so ... to bring this thread back ...
I've bought a 2.2 wc spindle off of Ali
Linear rails/bearings next ..
anything to avoid ? or just go by price ?
Avoid sellers without rating.
Stick to trusted sellers. /Chai or Fred/
Avoid TBR or SBR rails, buy square supported. Chinese, TBI, Hiwin,THK, Rexroth, / ordered by price/. TBI or Hiwin are the usual choice.
The 15 size are strong enough but the usual choice is 20.
I had no reply on my other thread ...
but I'm having trouble with Ali ... and there is no way I am providing them with my full digital identity !!!!!!
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