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Bearing Crankshaft flywheel

for Vespa PK50/SS/XL N/PK50
-125 S/PK125 N/XL Plurimatic
INA, 22x34x16 mm

Various types of roller bearings are used in the Vespa's engine: Thrust bearings, Tapered roller bearings and needle roller bearings. We refer to them collectively as engine bearings. They all possess minimal friction values and therefore produce little heat, require less lubrication and are virtually maintenance-free. The only thing that can shorten their life-span are contamination, a heavier than average work-load or a lack of adequate lubrication with a suitable oil. The stronger the state of tune or the higher the mileage a motor has achieved, the more frequently the engine bearings require replacement. We recommend engine bearing renewal during every major engine service or 10000 km (6250 mls.)

Most of the engine bearings we have available are original PIAGGIO items and in order to extend the range , we also have most types of bearings available, that we buy directly by the various manufacutrers.


SIP-TIP : Do not forget to order new crankshaft oil seals and gasket set when replacing the bearings of your Vespa's engine. For a quicker and more professional job there are also specialist tools available specifically for this purpose.


If your flywheel can be moved up and down while completely installed it's time, at least, to replace the flywheel side crankshaft bearing. A new crankshaft should never be used in combination with the used, existing bearings.

Small-frame riders have the choice between C3 and C5 grade bearings. C3 are the standard items and the C5 have larger expansion tolerances, so allowing enough play at higher temperatures for high revving motors. If you are aiming for a power output of 15HP or more we recommend the use of pin-roller bearings or bearings of a race standard.

For all those who wish to use an ETS models crankshaft in their small-frame an ETS conversion bearing and special shaft oil seal will also be necessary.

OEM Numbers (for the purpose of comparison)  222666 (PIAGGIO)

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Product forums
icon scootermodels This product fits the following models
divider Producer/Model divider cc divider Type divider Engine divider Yr. of Const. divider Extra
VESPA PK 50 / S Automatica / Elestart 50 VA51T 2T AC `84-`86
VESPA PK 50 SS Automatica / Elestart 50 VAS1T 2T AC `84
VESPA PK 50 XL N Plurimatic / Automatica 50 V5P1-2 2T AC `89-`90
VESPA PK 50 XL Plurimatic / Elestart 50 VA52T 2T AC `86-`90
VESPA PK 80 S Automatica / Elestart 80 VA81T 2T AC `84
VESPA PK100 S Automatica 100 VA91T 2T AC `84
VESPA PK125 N NUOVO (FL) Automatica 125 VVM2T 2T AC `90
VESPA PK125 S Automatica / Elestart 125 VAM1T 2T AC `83-`84
VESPA PK125 XL Plurimatic / Elestart 125 VVM1T 2T AC `87-`90

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