Question

In a shaft-hole assembly, the hole is specified as \( 30.040^{0.000} \) mm. The mating shaft has a clearance fit with minimum clearance of 0.01 mm. The tolerance on the shaft is 0.03 mm. The maximum clearance in mm between the hole and the shaft is

• A. 0.04
• B. 0.05
• C. 0.08
• D. 0.10

Hint:

In clearance fits, the maximum clearance is calculated as the difference between the maximum hole size and the minimum shaft size.

Answer 1

The Correct Option is C

In a clearance fit, the clearance is the difference between the hole's maximum size and the shaft's minimum size. Given:
- The hole is \( 30.040^{0.000} \) mm, so the maximum size of the hole is \( 30.040 \) mm.
- The shaft has a minimum clearance of 0.01 mm and a tolerance of 0.03 mm.
The maximum clearance between the hole and the shaft will be the maximum size of the hole minus the minimum size of the shaft: \[ \text{Maximum clearance} = 30.040 \, \text{mm} + 0.03 \, \text{mm} - 30.000 \, \text{mm} = 0.08 \, \text{mm}. \] Thus, the correct answer is (C) 0.08.