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07-03-2018 #1
Ok worked al little with Fred from BST.
Something changed in their design / stock
Earlier they would ship sealed bearing and sealed blocks... In mine neither are sealed.
Fred agreed to send me new seals block vs ballscrew.
Now waiting for postman
Grtz Bert.
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07-03-2018 #2
Makes you wonder why they would even bother putting the block together with unshielded bearings?
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07-03-2018 #3
Well he said it had something to do with a bulk order from a client and complaints about resistance from double seals and getting things mixed up.
Anyway i am glad i bought from him instead of some shady guy. Its a big advantage you guys know trust worthy sellers.
It is not how someone makes a mistake, its the way they solve stuff that sets them apart.
Grtz Bert.
Verstuurd vanaf mijn SM-A320FL met Tapatalk
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01-04-2018 #4
Ok so Fred is really a good guy,
I received the replacement seals this week.
So now my bearings are protected.
So for anyone that recieved bf bk type bearings from Fred lately.. it dont hurt to check ...
You should have sealed bearings inside or good seals in the bearingblocks.
I had neither.
Grtz Bert.
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02-04-2018 #5
Bert can you post a pic with the old seals and with the new ones on the bearings?
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02-04-2018 #6
Hi Nickhofen,
I can post the before.
I can make a few pictures of the after later today.
Seal vs ring.
Look at the gap between the seal and ring.
And the opened bearingblock.
No seal in the bearing.
Fred explained there was change in his inventorie... sealed and non sealed bearings. And a customer that did not want the bearing block seals to touch the rings because of the resistance this has.
This was a big customer and he had left over stock.
Grtz Bert
Verstuurd vanaf mijn SM-A320FL met Tapatalk
The last picture shows the old seal icw rings from 20mm ballscrew.
And the ring in the bearingblock with a new sealLast edited by driftspin; 02-04-2018 at 09:47 AM.
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