This Standard specifies the backlashes of bevel gears which satisfy the following specifications.
a)Gear accuracy grade: B2 to B11 (see JIS B 1704)
b) Outer normal module: 0.5 mm to 25 mm
c) Outer pitch circle diameter: 3 mm to 1600 mm
This Standard applies to normal backlashes to the tooth flank of steel bevel gear pairs mounted at the designed position on a gear roll test machine. This Standard is also applicable to the bevel gears made of cast iron or sintered metal.
JIS B 1705:2013 Referenced Document
JIS B 0102-1 Vocabulary of gear terms .Part 1: Definitions related to geometry