SAE J635_201806
SAE J635_201806
Fan Hub Bolt Circles and Pilot Holes (Stabilized: Jun 2018)standard by SAE International, 06/02/2018
standard by SAE International, 06/02/2018
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.