🔍 Key Concepts

• How a disk-oiled (slinger disk) bearing actually moves oil from the reservoir to the shaft/bearing surface • Whether the disk must rotate with the shaft or be free/loose on it for proper operation • Difference between wick lubrication, scraper, and ring-oiling methods

💭 Think About

• Visualize the setup: a shaft passing over an oil reservoir with a disk partly submerged. For the oil to reach the bearing, what has to move, and how does the oil get flung or carried? • Ask yourself: in real machinery, would a disk that fits loosely on the shaft reliably rotate and lift oil every time, or do we want positive rotation? • Compare the listed oil-distribution methods: which one is classically associated with a rotating disk dipping into oil, and which are more typical of other lubrication designs?

✅ Before You Answer

• Check which answers say the disk is clamped to the shaft versus fits loosely; consider which is more reliable for constant rotation with shaft speed • Identify which oil-feeding method (wick, scraper, ring-like action) is normally paired with a disk immersed in oil that rotates with the shaft • Eliminate any choice that pairs an improbable combination of disk attachment and oil-distribution method for a typical disk-oiled line shaft bearing