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PostPosted: Sat Oct 21, 2017 12:04 pm 
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Location: Orleans, ON, CA
I need to replace a disintegrated thrust plate in a Sony 1350 and which is used in a number of Sony turntables. It was not a metal part though not sure what it was made of but I need to make up and improvise a new one. Any ideas on materials and where to get it?

Couple of pics from the net, which is the same setup.

Bottom of the bearing with the spindle in place.
Image

Bottom of the spindle
Image


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PostPosted: Sat Oct 21, 2017 1:05 pm 
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Location: Markham, ON, CA
That plate looks close to oilight bronze. If so, check your local bearing suppliers...as long as you have accurate dimensions they could be able to help. As it appears the thrust plate is inserted into the bottom of the shaft, how is it held in place? Circlip?

Regardless of what may or may not have been in place, bronze is a good choice. Hard enough to last a long while and, once broken in, it will be polished to a near frictionless surface. Quite musical as well :o


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PostPosted: Sat Oct 21, 2017 5:13 pm 
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Location: Hamilton, ON, CA
You could try here http://www.lencoheaven.net/forum/index. ... ic=12308.0

Similar setup design, perhaps the vendor can help you out


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PostPosted: Sat Oct 21, 2017 7:27 pm 
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brownslane wrote:
That plate looks close to oilight bronze. If so, check your local bearing suppliers...as long as you have accurate dimensions they could be able to help. As it appears the thrust plate is inserted into the bottom of the shaft, how is it held in place? Circlip?

Regardless of what may or may not have been in place, bronze is a good choice. Hard enough to last a long while and, once broken in, it will be polished to a near frictionless surface. Quite musical as well :o


Good and interesting idea, thanks. Just a bit of extra from a bronze sheet. It has a kind of circlip that goes inside the shaft.


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PostPosted: Sun Oct 22, 2017 5:15 am 
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Rog50 wrote:
You could try here http://www.lencoheaven.net/forum/index. ... ic=12308.0

Similar setup design, perhaps the vendor can help you out


Thanks. I got registered on the site and got access to the thread. Nice drawing and info there.


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PostPosted: Sun Oct 22, 2017 5:52 am 
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I use a synthetic bearing grease from a racing group called Red Line. If you PM you address I'll put a little bit in a baggie and mail it to you.


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PostPosted: Sun Oct 22, 2017 12:26 pm 
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Location: Whitby, ON, CA
if you are going to make out of bronze,i'd suggest finding a piece of Ampco bronze and have someone or machine shop with a lathe machine you the piece. Ampco is tuff as nails as it will take any load and won't wear out.


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PostPosted: Sun Oct 22, 2017 7:45 pm 
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i should add if you have no idea where to get any of the materials said here,try Metal Supermarket if there is one near you.


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PostPosted: Mon Oct 23, 2017 7:09 am 
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GRC1959 wrote:
i should add if you have no idea where to get any of the materials said here,try Metal Supermarket if there is one near you.


Metal Supermarket does not sell pre-manufactured bronze shim stock or thrust pads. They are good for sourcing bar stock, but if the OP is looking for an off-the-shelf source for a thrust washer/plate, then bearing supply companies will have exactly what he needs. Canadian Bearing have warehouses all over Canada and can source anything made....

Metal Supermarket are the most expensive place I have ever purchased steel from. North York sells a full 22 footer of 1 X 1 .065 mild steel for $13.80 a length. Metal Supermarket is $28.85. If you want it cut in half they charge $2 a cut. Crazy!...but it is the place to go if you only want 8 inches of something.

Machine shops charge between $90 and $150 an hour for simple work (we charge $120)....it would be much better to source something pre-manufactured. In terms of bronze, oilight is a super good choice as it is self-lubricating and can withstand high point-pressures. Remember this stuff is subjected to loads of hundreds of tons of force....the weight of a turntable platter means nothing.


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PostPosted: Mon Oct 23, 2017 10:58 am 
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brownslane wrote:
I use a synthetic bearing grease from a racing group called Red Line. If you PM you address I'll put a little bit in a baggie and mail it to you.


Appreciate the offer, right now I am trying to figure out a replacement thrust plate.


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PostPosted: Mon Oct 23, 2017 11:34 am 
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brownslane wrote:
GRC1959 wrote:
i should add if you have no idea where to get any of the materials said here,try Metal Supermarket if there is one near you.


Metal Supermarket does not sell pre-manufactured bronze shim stock or thrust pads. They are good for sourcing bar stock, but if the OP is looking for an off-the-shelf source for a thrust washer/plate, then bearing supply companies will have exactly what he needs. Canadian Bearing have warehouses all over Canada and can source anything made....

Metal Supermarket are the most expensive place I have ever purchased steel from. North York sells a full 22 footer of 1 X 1 .065 mild steel for $13.80 a length. Metal Supermarket is $28.85. If you want it cut in half they charge $2 a cut. Crazy!...but it is the place to go if you only want 8 inches of something.

Machine shops charge between $90 and $150 an hour for simple work (we charge $120)....it would be much better to source something pre-manufactured. In terms of bronze, oilight is a super good choice as it is self-lubricating and can withstand high point-pressures. Remember this stuff is subjected to loads of hundreds of tons of force....the weight of a turntable platter means nothing.


I had not checked but suspected the kind of info you have posted. I was wondering about a small piece of sheet bronze or other metal just cut round to fit inside the sleeve. I don't think it needs to be fancy, but sufficient for a base for the bearing to spin on.

Alternatively if a type of plastic does the trick that would be good to, but I have no idea what a good plastic/synthetic material would be or where to find it.


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PostPosted: Mon Oct 23, 2017 12:13 pm 
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brownslane wrote:
That plate looks close to oilight bronze. If so, check your local bearing suppliers...as long as you have accurate dimensions they could be able to help. As it appears the thrust plate is inserted into the bottom of the shaft, how is it held in place? Circlip?

Regardless of what may or may not have been in place, bronze is a good choice. Hard enough to last a long while and, once broken in, it will be polished to a near frictionless surface. Quite musical as well :o
+1


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