SAE J635-2018
SAE J 635-2018
Fan Hub Bolt Circles and Pilot Holes
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- 标准号
- SAE J635-2018
- 发布日期
- 2018年06月01日
- 实施日期
- 2018年06月05日
- 废止日期
- 无
- 中国标准分类号
- /
- 国际标准分类号
- /
- 发布单位
- SAE - SAE International
- 引用标准
- 6
- 适用范围
- This Recommended Practice applies to engine cooling fans up to 2000 mm in diameter with a mounting interface consisting of a pilot hole and a circular bolt pattern. Most of these fans are belt@ gear@ clutch@ hydraulically@ or electrically driven. Purpose The purpose of this SAE document is to encourage the standardization of mounting patterns for engine cooling fans. A secondary purpose is to encourage adoption of SI metric units@ although a listing of existing common English unit mounting patterns (legacy patterns) is provided. It is specifically not the objective of the specification to address the soft metric conversion of existing mounting patterns on engines designed in English units. Adherence to this specification should result in cost savings through reduction of part numbers and inventory@ and more robust fan design. Failure to comply with this specification will result in the need to release and carry in inventory parts of identical blade geometry and construction@ but with different mounting patterns.