A ratchet is a mechanical gadget that allows continuous linear or rotary motion in mere one direction while Ratchets Wheel avoiding motion in the contrary direction. Ratchets are trusted in machinery and equipment. A rachet contains a round equipment or a linear rack with tooth, and a pivoting, spring-loaded finger known as a pawl (or click, in clocks and watches[1][2]) that engages the teeth. The teeth are uniform but asymmetrical, with each tooth having a moderate slope on one advantage and a much steeper slope on the various other edge.

When one’s teeth are relocating the unrestricted (i.e. forward) direction, the pawl easily slides up and over the carefully sloped edges of one’s teeth, with a springtime forcing it (often with an audible ‘click’) in to the depression between your teeth since it passes the tip of every tooth. When one’s teeth move in the contrary (backward) direction, however, the pawl will capture against the steeply sloped edge of the first tooth it encounters, therefore locking it against the tooth and avoiding any further motion for the reason that direction.


Angle of teeth 60°

Material S45C

Heat therapy Induction hardened teeth

Tooth hardness 50 ~ 60HRC