| Also known as | T3646, TC 2233, TC-2233 |
| Diagram | Fig. 14 — PRIMARY TRANSMISSION AND OIL PUMP DRIVE · ref 14 |
| Subsystem | engine bottom |
| Listed in parts books | 1969–1974 |
BEARING,THRUST NEEDLE TRI T150
Clutch thrust needle bearing for Triumph triples, also cataloged as TC 2233.
This is the thrust needle bearing that sits in the clutch assembly on Triumph's three-cylinder machines. It's a small roller-type bearing that takes the thrust load where the clutch operating mechanism pushes against the rotating clutch assembly, letting that pressure work smoothly instead of grinding metal on metal.
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The part carries the legacy number TC 2233 in older parts books, so if you're working from an early triples manual and see that reference, it's the same physical bearing as 57-3646. Our records show this part turning up specifically in Triumph triples catalog listings.
It's a cheap part to overlook and an easy one to replace while you've got the clutch apart. If you're not certain whether your clutch uses this bearing, check your parts book diagram or give us a call before ordering.
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