Page 213 - The Tribology Handbook

Cams and followers E310

ANGLE FROM CAM CENTRE LINE. deg
la:l

600
TYPE B

400
e
c

200

0
60 50 40 30 20 10 0
ANGLE FROM CAM CENTRE LINE, deg
(bl TYPE C

7000 100
E
4
m 6000
vi 80
;
0)
5000
Li 0
5 4000 60 p
2 N X
$3000 .-
V 40 -
5 2000
E 20
2 loo0
I
0 0 TYPE D
60 50 40 30 20 10 0
ANGLE FROM CAM CENTRE LINE, deg Figure 10.4 Classification of cams and tappets for
(Cll determination of contact stresses. Type A: flat
follower faces. Type B: spherical faced tappers. Type
Figure 70.3 Typical variation for an automotive cam C: curved and roller followers with flat transverse
of: (a) irrstantaneous radius of curvature; (b) cam/ faces. Type D: curved tappets with transverse radius
tappet force; (cl maximum contact stress of curvature
B10.3