| 1. | The main bearings were of two types at first, ball and roller.
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| 2. | The lower crankcase assembly supported the crankshaft without conventional main bearing caps.
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| 3. | Camshaft bearings are similar to crankshaft main bearings, being pressure-fed with oil.
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| 4. | This was due to the tight tolerances of the engine main bearings.
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| 5. | The crankshaft is made of alloy steel, with five main bearing caps.
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| 6. | The main bearings are shared with the 3VZ-E, but little else.
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| 7. | The crank cheeks were used as main bearing journals, and were in diameter.
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| 8. | These were cast iron engines, and used just three main bearings.
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| 9. | Large main bearing and crankpin journals assure long bearing life ."
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| 10. | This new powerplant featured five main bearings with an unusual ball bearing system.
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