🔍 Key Concepts

• Line shaft steady bearing lubrication systems • Function of an oiling ring on a rotating shaft • What could cause bearing failure if not observed during inspection

💭 Think About

• Think about how an oiling ring is supposed to behave in normal operation on a horizontal shaft. • Ask yourself what motion of the ring would allow it to pick up oil from the sump and deliver it to the bearing surface. • Consider which option, if neglected, would most quickly lead to loss of lubrication at the bearing itself.

✅ Before You Answer

• Confirm how an oiling ring actually transfers oil from the sump to the shaft/bearing. • Verify whether the ring should move with the shaft or remain relatively stationary while riding on it. • Identify which choice is directly related to the mechanical action of the ring rather than system pressure or tank flow.