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Crankshaft Bearings Stage6 Polymer cage (SKF 6303/TN9-C3)

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Stage6 Item no.: S6-80310C3/TN9

Crankshaft Bearings Stage6 Polymer cage (SKF 6303/TN9-C3)

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Suggested retail price: €35.00

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Especially with high-performance engines you should not be too stingy when it comes to buying crankshaft bearings. This is why Scooter-Attack only collaborates with leading European and Japanese manufacturers of bearings and oil seals such as SKF and Corteco. We offer you these high-quality crankshaft bearing kits in 2 versions, with metal cage or with polymer cage. Both types can, according to SKF, be used up to 20,000rpm and have of course the necessary bearing clearance (C4). Sufficient lubrication and proper installation of crankshaft and bearings are of course paramount for long life.

The version with polymer plastics cage has higher elasticity and a reduced friction coefficient as compared to the metal ball cage. This is also the type of bearing that we prefer for our racing engines. What is important for these bearings are the right ignition timing and carburettor settings, since these bearings should not be subjected to more than 120°C for a longer time in order to prevent damage to the polymer plastics cage. This is also the reason why the TN9 bearings should not be used in engines with catalytic converters. Please also keep in mind that the half-open cage must be inserted so that it faces the crank webs.

The metal cage bearing on the other hand is more resistant than the polymer version, but unfortunately it also generates more friction and hence more heat, which results in a shorter life expectancy.

Attention! The polymer cage bearings can only be used in conjunction with tuning exhausts or original exhausts without catalytic converters.
Additional Information
Name Crankshaft Bearings Stage6 Polymer cage (SKF 6303/TN9-C3)
Item No. S6-80310C3/TN9
Brand Stage6
RPM Range 0 - 16000 RPM
Stroke Original
Conrod Length Standard
Material Polymer
Bearing Ø original
Fits to (78)

Your product goes with the following manufacturers and their models:

AF1 50cc (AM6), MX 50cc (AM6), RS 50cc (AM6) - (after 1999), RS 50cc (AM6) - (before 1999), RX 50cc (AM6), Special Engine AM6, Tuono 50cc (AM6)

RK6 50cc (AM6), RR-T Enduro 50cc (AM6) - (tubular), RR-T SM 50cc (AM6) - (tubular), RR 50cc Motard, RR Alu Enduro 50cc (AM6) - (perimeter), RR Alu SM 50cc (AM6) - (perimeter), RR Enduro 50cc (AM6) - (tubular), RR SM 50cc (AM6) - (tubular)

WSM SM Racing 50cc (AM6, Euro 2), WXE Enduro Racing 50cc (AM6, Euro 2)

Fantic Motor
Caballero SM 50cc, Regolarita Casa 50cc

Trigger SM 50cc (AM6), Trigger X-Enduro 50cc (AM6)

Cre/Baja Enduro 50cc (version 2006) AM6, Cre/Six SM 50cc (version 2005) AM6, Cre/Six SM 50cc (version 2006) AM6, Dérapage SM Compétition 50cc (version 2005) AM6, Dérapage SM Compétition 50cc (version 2006) AM6

CH Racing 50cc (AM6), SM Cross 50cc (AM6), WR 50cc (until 2000 AM6), WSM 50cc after 2000

X-Limit Enduro 50cc (after 2003) AM6 (perimeter), X-Limit Enduro 50cc (before 2003) AM6 - (tubular), X-Limit SM 50cc (after 2003) AM6 - (perimeter), X-Limit SM 50cc (before 2003) AM6 - (tubular), X-Power 50cc (AM6) - (after 2003), X-Power 50cc (AM6) - (before 2003)

Drakon Naked 50cc (AM6), XSM Supermotard 50cc (AM6) - (after 2003), XTM Enduro 50cc (AM6) - (after 2003)

Furia Max Enduro/SM 50cc (AM6) - (tubular), RX Super Racing 50cc (AM6), RYZ Enduro/SM 50cc (AM6) - (perimeter)

NK7, XP6-Enduro 50cc (AM6) - (tubular), XP6-Supermotard 50cc (AM6) - (tubular), XP7, XPS-Enduro 50cc (AM6) - (perimeter), XPS-Street EVO2 50cc (AM6) - (perimeter), XPS-Supermotard 50cc (AM6) - (perimeter), XR6 50cc (AM6), XR7

MRT 50cc, MRT 50cc Pro, MRT 50cc Pro SM, MRT 50cc SM, MRX Enduro 50cc Pro (AM6), MRX Euduro 50cc (AM6), RR Enduro 50cc (AM6), RS-1 Evolution 50cc (AM6), RS2 Matrix 50cc (AM6), RS2 NKD 50cc (AM6), RS3 50cc, SMX SM 50cc (AM6), SMX SM 50cc Pro (AM6), Spike 2 50cc (AM6)

Enduro 50cc (AM6), Enduro SHARK 50cc (AM6), HRD Enduro 50cc (AM6), Supermotard 50cc (AM6), Supermotard Champion Replica 50cc (AM6), Supermotard IPONE Replica 50cc (AM6), Supermotard Shark 50cc (AM6)

DTR Enduro 50cc (after 2003) AM6 - (perimeter), DTR Enduro 50cc (before 2003) AM6 - (tubular), DTX SM 50cc (after 2003) AM6 - (perimeter), DTX SM 50cc (before 2003) AM6 - (tubular), TZR 50cc (AM6) - (after 2003), TZR 50cc (AM6) - (before 2003)