Various types of cam followers are shown in Fig. 24.1.
Knife-edge followers are restricted to use with slow-moving mechanisms, due to their rapid rates of wear. Improved stability can be obtained from the roller follower, and increased surface area in contact with the cam can be obtained from the flat and mushroom types of follower. The roller follower is the most expensive type, but is ideally suited to high speeds and applications where heat and wear are factors.
Fig. 24.1 Plate cams (a) Plate cam with knife-edge follower (b) Plate cam with roller follower (c) Plate cam with flat follower (d) Plate cam with oscillating knife-edge follower (e) Plate cam with oscillating flat follower
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