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
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
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In clearance fits, the maximum clearance is calculated as the difference between the maximum hole size and the minimum shaft size.
Updated On: Dec 26, 2025
- 0.04
- 0.05
- 0.08
- 0.10
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The Correct Option is C
Solution and Explanation
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.
- 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.
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