1 pitch? 12.7

② Drum diameter? 8.5 1

③ Link width? 7.75

(4) Chamfer width? 1.6

⑤ Chamfering depth? 6.4

⑥ Chamfer radius? 13.5

⑦ Single row tooth width? 7.2 1

8 Double row tooth width? 7. 1

Pet-name ruby spacing? 13.92

Second, the sprocket parameter calculation formula:

① Diameter of dividing circle:

D = p/sin (180/z) p = pitch lookup table z= number of teeth.

② Tooth top circle (outer diameter):

D=p×(0.54+cot 180 /z)

③ Common sprocket pitch:

3/8=9.525 1/2= 12.7 5/8= 15.875 3/4= 19.05

Three points, four points, five points and six points.

④ Diameter of dividing circle:

d=p/sin( 180 /z)

⑤ Diameter of addendum circle:

dmax=d+ 1.25p-d 1

dmin = d+( 1- 1.6/z)p-d 1

⑦ Diameter of root circle:

df=d-d 1

note:

① pitch of p chain

② Number of teeth of Z sprocket

③ Diameter of chain roller D 1