NOTES

METRIC USES 'FOR OPERATING CONDITIONS, SUCH AS OPERATING CD-a'

METRIC USES 'REFERENCE DIAMETER' FOR GENERATED PITCH DIAMETER, 'REFERENCE CIRCLE' FOR GENERATED PITCH CIRCLE ETC.

METRIC USES LETTER FOR ARC THICKNESS, s; LETTER WITH OVERLINE FOR CHORDAL THICKNESS s

US USES AXIAL SECTION, METRIC USES CRITIC SECTION, AS WELL AS AXIAL SECTION.

METRIC USES BASIC SYMBOL OF PRESSURE ANGLE, FOR NORMAL PLANE (NO SUBSCRIPT)

METRIC USES CONE ANGLE,TIPCONE ANGLE ETC INSTEAD OF PITCH ANGLE, FACE ANGLE ETC.

US USES SUBSCRIPT P - PINION:, G-GEAR.

METRIC USES SUBSCRIPT 1- PINION, 2, GEAR.

US USES ARC OF ACTION, ETC.

METRIC USES LENGTH OF CONTACT, ETC.

US USES 'm' FOR RATIO (GEAR, CONTACT ETC.)

METRIC USES i FOR GEAR RATIO,& FOR VARIOUS CONTACT RATIOS

REFERENCES:

AGMA

112.04

MAAG GEAR BOOK

111.03

MAAG GEAR-WHEEL, CO. LTD

ZURICH, SWITZERLAND