15 kg

42 kg

62 kg

100 kg

Ratio of pitch diameter to number of teeth

Ratio of addendum to dedendum

Ratio of pitch circle diameter to land of the teeth

Ratio of pitch diameter to chordal addendum

0.1

0.05

0.95

1.05

Tin, copper and antimony

Tin, Phosphorous and copper

Copper, zinc and lead

Aluminium, lead and zinc

Sometimes provide clearance and sometimes interference

Provide transition from clearance to interference along the axis of shaft

Provides clearance in one end and interference in other end

Provides always clearance