Gearbox, layshaft bush, driveside

Information relating to the Matchless G5 or AJS Model 8 350cc Lightweight
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Re: Gearbox, layshaft bush, driveside

Postby vigo » Wed Feb 12, 2020 9:23 am

Gents,
Maybe I am the most recent lightweight sufferer to need the subject bearing. Here are a few facts from my experience with Simply Bearings: I ordered my RNU205 for £43 inc p&p it arrived promptly. This SKF made in Germany bearing contains no "Kunstoff" and in particular the roller cage is ferrous based metal (magnet check). The dimensions are correct and it fits. The only other stamps are W12R on the outer race.
I cannot see any specific technical reasons why this item is not fit for purpose.
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Re: Gearbox, layshaft bush, driveside

Postby Ozmadman » Wed Feb 12, 2020 2:07 pm

The bearing is correct if it has the metal cage but where did the £43 inc V.A.T come from? as there is no bearing at that price on their site now, unless they have bumped up the price recently..
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Re: Gearbox, layshaft bush, driveside

Postby vigo » Wed Feb 12, 2020 3:54 pm

I can't really comment on that and because I'm in Germany the next 3 weeks I don't have the invoice to hand. I'll have a look on SB's site and follow this up but it could be 3 weeks.

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Re: Gearbox, layshaft bush, driveside

Postby vigo » Wed Feb 12, 2020 4:06 pm

Well I've looked at my paypal account and I paid £43,32 on 16th Jan. I can only suggest you mention my price and ask for a deal, it is the very same bearing.

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Re: Gearbox, layshaft bush, driveside

Postby SPRIDDLER » Wed Feb 12, 2020 5:05 pm

This one? Currently on SB's website.

https://simplybearings.co.uk/shop/advan ... ds=RNU205+

Bearing RNU205 Simply Bearings (640x272).jpg


vigo wrote:No that's the wrong one denoted by the E, the internal diameter is too small

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Last edited by SPRIDDLER on Wed Feb 12, 2020 5:19 pm, edited 4 times in total.
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Re: Gearbox, layshaft bush, driveside

Postby vigo » Wed Feb 12, 2020 5:10 pm

No that's the wrong one denoted by the E, the internal diameter is too small

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Re: Gearbox, layshaft bush, driveside

Postby ajscomboman » Wed Feb 12, 2020 6:32 pm

I'm afraid you L/W owners are going to have to struggle on your own. For the last 2 days I've been trying to resolve their inability to quote for the correct bearing and they have simply closed the enquiry case as resolved! It clearly wasn't as I'd not heard back and I've been trying to get through on the landline as well to no avail.
I'm not bothering with them if that's the best service they can provide.

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Re: Gearbox, layshaft bush, driveside

Postby ajscomboman » Thu Feb 13, 2020 4:49 pm

Finally I heard back from Simply Bearings, SKF were not available in any quantity (ie only 1 available) however other branded ones were so we've ordered a batch.

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Re: Gearbox, layshaft bush, driveside

Postby Ozmadman » Thu Feb 13, 2020 11:55 pm

ajscomboman wrote:Finally I heard back from Simply Bearings, SKF were not available in any quantity (ie only 1 available) however other branded ones were so we've ordered a batch.

I hope they are the right size?? what do you reckon the chances are? based on their performance so far
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1960 Model 8
1974 Yamaha RD250B US Model 6 speed

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Re: Gearbox, layshaft bush, driveside

Postby ajscomboman » Fri Feb 14, 2020 8:46 am

Well the quotation did say 32mm and not 31.5mm as well as stating steel cage. If they come in wrong I'll have wasted 1hr of my life yesterday on the phone talking them through our requirements!

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