Fraim ball-bearings

Camphuw · March 15, 2019, 10:52am

I rebuilt half my two-stack system this week, but mislaid a ball-bearing. I have looked high and low for this AWOL item to no avail. I have no sticky fingers to blame either. May I have suggestions from whence I can find a replacement? (P.S. my dealer is no longer in business)

Gazza · March 15, 2019, 10:54am

Try tomtom audio they do mail order or give them a call

Gazza · March 15, 2019, 10:57am

Cymbiosis on their estore has a single bearing for £1.61

Filipe · March 15, 2019, 10:58am

Tom Tom Audio Shop

Phil

raym55 · March 15, 2019, 12:01pm

Got mine from ‘the bay’. I wasnt going to pay that much for a ball bearing. Got 20 SS 1/2” for just over a fiver.

Richard.Dane · March 15, 2019, 12:17pm

The ball bearings need to be mild steel. Stainless balls didn’t sound as good, although they are (were?) available as an option for places of high humidity.

anon23139555 · March 15, 2019, 12:19pm

Bought a set from my local bearing supplier …took a sample one in and they matched it …£1 each but did feel they over charged me a little and I probably could have got a bag full cheaper if I was trade…

Xanthe · March 15, 2019, 12:20pm

Very interesting. Normal ball bearings are hardened cobalt steel, a very different material.

bailyhill · March 15, 2019, 12:33pm

Ball Bearings are usually 52100 Ball Bearing Steel here in the States. Used to also be used for ball less gas bearings for high performance applications. Agree with Richard.

Camphuw · March 15, 2019, 3:00pm

Thanks Gazza

Xanthe · March 15, 2019, 3:37pm

Oops, yes I forgot we were using some rather special ball bearings!

malla · March 16, 2019, 2:18am

How much is it to buy from Naim (via Dealer) ? I am curious now.

Gazza · March 16, 2019, 7:19am

£1.61 for one ball

malla · March 16, 2019, 10:29am

When I get my new Fraim - I’m going to buy a bag of 10 spares! I will definitely lose some!

Abdabs19 · March 17, 2019, 8:19am

Hello Richard,
Can you confirm your comment about “mild steel” bearings please? I cannot find any available. I live in a high humidity environment (at the moment) and can confirm that a number of the balls have surface corrosion.
A “proper spec” for the balls would be most welcome (size, material and grade) please.

Richard.Dane · March 17, 2019, 8:42am

Abdabs, I don’t have that info I’m afraid. IIRC, It was once posted in the old forum, so maybe worth a search in the archive, however, you’re best off contacting Naim for that info.

Abdabs19 · March 23, 2019, 1:05pm

Thanks Richard!

system · May 22, 2019, 1:05pm

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