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Allowance in limits and fits refers to
[ME 2001]
  • a)
    Maximum clearance between the shaft and hole
  • b)
    Minimum clearance between the shaft and hole
  • c)
    Difference between the maximum and minimum size of hole
  • d)
    Difference between the maximum and minimum size of shaft
Correct answer is option 'B'. Can you explain this answer?
Verified Answer
Allowance in limits and fits refers to[ME 2001]a)Maximum clearance bet...
Allowances is always the difference between Maximum material limits.
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Most Upvoted Answer
Allowance in limits and fits refers to[ME 2001]a)Maximum clearance bet...
Explanation:

The concept of limits and fits is used to ensure that two mating parts have the required degree of tightness or looseness. Allowance is an important aspect of limits and fits that determines the minimum and maximum clearance or interference between the mating parts.

Definition of Allowance:

Allowance is the intentional difference between the maximum material limits of mating parts. It is the minimum clearance or maximum interference between the shaft and hole, which is determined by the designer based on the desired fit.

Types of Allowance:

There are two types of allowance in limits and fits, which are:

1. Minimum Allowance: It is the minimum clearance or maximum interference between the mating parts that ensure the required fit. The minimum allowance is calculated by subtracting the maximum limit of the hole from the minimum limit of the shaft or vice versa.

2. Maximum Allowance: It is the maximum clearance or minimum interference between the mating parts that still ensure the required fit. The maximum allowance is calculated by subtracting the minimum limit of the hole from the maximum limit of the shaft or vice versa.

Significance of Allowance:

The allowance is an essential parameter in limits and fits that determines the clearance or interference between the mating parts. The correct allowance ensures that the parts can be assembled easily while maintaining the required degree of tightness or looseness. If the allowance is too small, the parts may not fit together, and if it is too large, the parts may have excessive play or looseness.

Conclusion:

In conclusion, allowance in limits and fits refers to the minimum clearance or maximum interference between the mating parts. It is an important parameter that ensures the required degree of tightness or looseness between the parts. The designer determines the allowance based on the desired fit, and it is calculated by subtracting the maximum or minimum limit of the hole from the minimum or maximum limit of the shaft.
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Allowance in limits and fits refers to[ME 2001]a)Maximum clearance between the shaft and holeb)Minimum clearance between the shaft and holec)Difference between the maximum and minimum size of holed)Difference between the maximum and minimum size of shaftCorrect answer is option 'B'. Can you explain this answer?
Question Description
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