| Also known as | 70 1592 |
| Listed in parts books | Not catalogued by year yet |
TIMING SIDE MAIN BRG BALL 1IN BORE - JAPAN
Ball-type main bearing, 1 inch bore, for the timing side of the crankshaft.
This is the timing side main bearing for the crankshaft, a ball bearing with a 1 inch bore. It sits in the timing side of the crankcase and carries the crankshaft where it rotates on that side of the engine, opposite the drive side.
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The catalog notes this one as a Japan-sourced bearing, which just tells you where it was made rather than anything about fitment. We don't have much more history on this part number beyond that description, so if you're rebuilding a crankcase and matching up bore sizes, give us a call and we'll confirm it lines up with what you've got apart on the bench.
Main bearings take the full load of the crank spinning inside the cases, so this isn't a part to guess on. Get the bore size and location right before you order.
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