A ratchet is a mechanical device which allows continuous linear or rotary Ratchets Wheel movement in mere one direction while preventing motion in the opposite direction. Ratchets are widely used in machinery and tools. A rachet includes a round gear or a linear rack with the teeth, and a pivoting, spring-loaded finger called a pawl (or click, in clocks and watches[1][2]) that engages one’s teeth. One’s teeth are uniform but asymmetrical, with each tooth having a moderate slope using one edge and a much steeper slope on the other edge.

When the teeth are moving in the unrestricted (i.electronic. forward) path, the pawl quickly slides up and over the softly sloped edges of the teeth, with a spring forcing it (frequently with an audible ‘click’) into the depression between the teeth as it passes the suggestion of each tooth. When the teeth move in the opposite (backward) direction, nevertheless, the pawl will catch against the steeply sloped advantage of the initial tooth it encounters, thereby locking it against the tooth and stopping any further motion in that direction.

Specifications

Angle of teeth 60°

Material S45C

Heat treatment Induction hardened teeth

Tooth hardness 50 ～ 60HRC