Difficulty: Easy
Correct Answer: Correct
Explanation:
Introduction / Context:
Gears require precise definition of tooth form, mounting datums, tolerances, and inspection criteria. The American Gear Manufacturers Association (AGMA), often in collaboration with ANSI, publishes recognized standards that unify terminology and ensure interoperability among designers, manufacturers, and inspectors.
Given Data / Assumptions:
Concept / Approach:
Standards cover nomenclature, tooth geometry relationships, allowable deviations, materials/heat treatment guidance, and recommended drawing notes, enabling clear procurement and quality control. Using these references reduces ambiguity and supports reliable performance and interchangeability.
Step-by-Step Solution:
1) Select tooth system and size (module/DP, pressure angle, helix).2) Specify accuracy grade per relevant AGMA standard.3) Add drawing notes for heat treatment, hardness, and inspection method.4) Reference applicable AGMA/ANSI document numbers in the title block or notes.
Verification / Alternative check:
Procurement and inspection documents align when both parties cite the same AGMA standard, minimizing disputes and rework.
Why Other Options Are Wrong:
Incorrect denies a fundamental industry fact. Limiting standards to spur gears or education ignores the breadth and industrial adoption of AGMA publications. Partially correct understates their scope.
Common Pitfalls:
Quoting a standard without using the corresponding accuracy grade or inspection method; mixing modules and diametral pitch within a set.
Final Answer:
Correct
Discussion & Comments