An open ball or roller bearing can receive grease from _______

An open ball or roller bearing can receive grease from _______

• A. the inner race
• B. the end cap
• C. either side
• D. the outer race

Answer: (C)

Open bearings lack shields or seals, so grease can be fed into the bearing from either end. This access lets the lubricant reach the raceways from whichever side you inject it, helping ensure the inner and outer races are properly lubricated. If a bearing had seals, the lubrication path would be more restricted, but for an open bearing the two ends provide entry points for greasing.

Open bearings lack shields or seals, so grease can be fed into the bearing from either end. This access lets the lubricant reach the raceways from whichever side you inject it, helping ensure the inner and outer races are properly lubricated. If a bearing had seals, the lubrication path would be more restricted, but for an open bearing the two ends provide entry points for greasing.