🔍 Key Concepts

• Study the B section view where the shaft is shown horizontally and clearances are marked vertically and horizontally. • Match the labeled dimensions in the illustration (g, G, k, i₁, i₂, h, etc.) with the values given in the Principal Clearances Crankshaft and Thrust Bearing table. • Focus on the column labeled Max. play (worn) to find the maximum allowable clearance along the vertical axis between the bearing and the shaft.

💭 Think About

• In the B view, which dimension actually represents the vertical gap between the bearing surface and the shaft, not the housing or the cap thickness? • Once you identify that dimension symbol in the drawing, where do you see the corresponding maximum allowable value for that symbol in the table? • Does the exam ask for normal running clearance or the limit at which the bearing is considered too worn—how does the wording "maximum allowable" guide you to the correct column in the table?

✅ Before You Answer

• Be sure you are using the B section view, not the thrust (axial) clearance shown in the left-hand figure. • Confirm that the dimension you choose is a radial/vertical clearance between shaft and bearing, not an axial thrust clearance or housing dimension. • Verify that you read the value from the Max. play (worn) column that corresponds exactly to the symbol from the drawing.