🔍 Key Concepts

• Thrust bearing construction – identify the thrust shoes, running surfaces, and how the cap holds them in place. • Clearances and measurements – note the dimensions i1, i2, g, g1, and the note about maximum difference with bearing bolts taken up. • Good maintenance practice – think about cleanliness, torque sequence, and when clearances are supposed to be checked.

💭 Think About

• From the illustration, when does the manual expect you to check dimensions – before or after tightening the cap? • Looking at the thrust shoes and bearing halves, what condition must exist before the cap goes on so they aren’t damaged or misaligned? • Which options would contradict standard practice about reassembling machinery that has been contaminated with abrasive material?

✅ Before You Answer

• Compare each choice to the note in the figure about difference i1–i2 = max 0.2 mm with bearing bolts taken up and decide when that check is made. • Ask whether proper procedure would ever allow reassembly if the bearing was covered with abrasive material or contaminants. • Think about a uniform torque pattern on bearing caps – would you normally torque one side fully at a time, or bring both sides up evenly?