| Also known as | 57-448, T448 |
| Diagram | Fig. 7 — GEAR CLUSTER, CAMSHAFT · ref 15 |
| Listed in parts books | 1960–1962, 1964–1965, 1967–1972 |
High gear bearing
High gear bearing for the gearbox cluster, used in Triumph parts-book listings from 1969–1972.
This is the high gear bearing off the gearbox cluster, listed in the parts books under GEAR CLUSTER, CAMSHAFT figures for the years 1969 through 1972. It carries the earlier factory number 60-3556 before Triumph renumbered it to 57-0448 (also seen written as T448 in older book listings).
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A bearing in this position supports the high gear shaft as it spins inside the gearbox, letting it turn freely under load while the rest of the cluster does its work. If you're rebuilding a box from this era and pulling the gear cluster apart, this is one of the wear points worth checking for play or roughness.
We don't have more detail on this one beyond its place in the catalog record. If you're not sure this is the exact bearing your box needs, call the shop and we'll confirm before you order.
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