I don't know if the heavy 10 is like the 10K spindle, but I wouldn't be surprised. On the 10K, the oil goes into reservoirs under the spinde bearings. Spring-loaded wicks from the reservoirs take the oil up to the bearing surfaces. From there, the oil gradually disperses out the ends of the bearings. Ultimately, it's a "total loss" system.
At least that's my understanding of it.
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