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J635_201403 - Fan Hub Bolt Circles and Pilot Holes

Details
Document Number: J635_201403
Revision Number:
Title
Fan Hub Bolt Circles and Pilot Holes
Scope
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.
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