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bearings
What is ment when shopping for bearings.... half, three quarter, and full groove? and what are the fillet depth differences.100/.175 440source.com.
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Full groove means the oil groove in the middle of the bearing goes 360 around the bearing, generally used on race motors for maximum oiling but may lower oil pressure. 1/2 groove means only one shell has the groove, typically the block side bearing. never heard of 3/4. Filet depth must be talking how big the filet, or radius of the bearing surface and thrust bearing surface junction. A filet here creates a stronger crank as it does not promote a stress riser as the stock crank has almost a notch. a large filet measurement means the bearing has more of the edges taken off to clear the larger filet.
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