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WmY |
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WmY Renault 5 Driver
Joined: 21 May 2018 Karma :
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Posted: 17:58 - 21 May 2018 Post subject: Peugeot Kisbee 50cc woes. |
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Well, there doesn't seem to be an "Introduce yourself" subforum; please correct me if I'm wrong and I'll write something there.
So my son, 16, wanted a moped/scooter (licence class AM). So, we thought, oh, no, no, not one of those Chinese things... it would be better to get a European one. HOLLOW LAUGH. The Peugeot Kisbee bought second-hand, if it isn't actually made in China, has a Chinese 139QMB-E engine. Bother.
So, at 9,500-odd Km, about 400Km after buying it, it started to rattle....
Stripping the thing shows that the alternator-side main bearing's bearing cage has collapsed. The big end seems OK. So, replacement main bearings are needed.
The drive side bearing is a standard & popular 6304 deep groove ball bearing, unshielded, standard clearance.
The alternator side bearing is similar, but a funny one - it's got "SC03A39CS" stamped on the outer race, and measures 17-42-13 (mm).
Any ideas on where to get good quality replacement bearings, please? |
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Octapode |
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Octapode Two Stroke Sniffer
Joined: 04 May 2018 Karma :
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WmY |
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WmY Renault 5 Driver
Joined: 21 May 2018 Karma :
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Posted: 20:21 - 21 May 2018 Post subject: |
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Wow, I found the "123bearing" bearing just before I read this! They've also got a 6302-17P53-NTN which seems to be the same. Any idea what the difference might be (unsure what "CS20" at the end of the first link is)?
Thanks very much for the "pedparts" link. It's a good price considering it comes with seals and both bearings, but they're out of stock. I e-mailed them to ask when they're likely to get more in.
It's odd - they muct churn these scooters out in huge numbers. One would think bearings would be easier to come by (and not made of cheese...). |
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WmY |
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WmY Renault 5 Driver
Joined: 21 May 2018 Karma :
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Posted: 12:19 - 22 May 2018 Post subject: |
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OK, for completeness:
Pedparts say new stock will take 2/3 weeks to arrive. Their kit ( Bearing & Seal Kit - Chinese GY6 50cc 4T #P3192 £24.95 ) is a good price including both bearings and seals.
In view of this I ordered from 123bearing. The cost is rather higher though (about £32 without seals BUT including VAT and 2day delivery (from France) ).
Notes:
Bearing (alternator side):
The Pedparts 6204 bearing has C4 clearance[1]. This is "slightly loose" apparently to cater for big bore conversion kits.
123bearing recommended a C3 bearing for this application (above 70 degrees C, high speed). This clearance is not so "loose" as C4. I ordered this one.
Bearing (drive side):
123bearing was again extremely helpful. They carry two equivalent bearings: SC03A39CS20 and 6302-17P53, both made by NTN. I include these numbers since they are not easy to find "from scratch".
[1] For more information on bearing clearances see: https://www.skf.com/uk/products/bearings-units-housings/ball-bearings/deep-groove-ball-bearings/designation-system/index.html?WT.oss=c2%20c3%20c4&WT.z_oss_boost=0&tabname=All&WT.z_oss_rank=1 and elsewhere. |
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WmY |
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WmY Renault 5 Driver
Joined: 21 May 2018 Karma :
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Old Thread Alert!
There is a gap of 5 years, 267 days between these two posts... |
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Gcardale |
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Gcardale L Plate Warrior
Joined: 18 Feb 2024 Karma :
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MCN |
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MCN Super Spammer
Joined: 22 Jul 2015 Karma :
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