Anodized Stamping Brass Worm Small Spur Gear

Professional Cheap High Precision Small Spur Gear micro Brass Worm Gear

Worm gear mechanism is often used to transmit the motion and power between two staggered shafts. Worm and worm are equivalent to gears and racks in the middle plane, and worm is similar to screw shape. The gear deceleration of worm gear is 20:1, sometimes up to 300:1 or greater.

If you want to get a larger gear reduction ratio, you need to use a worm gear. The gear deceleration of worm gear is 20:1, sometimes up to 300:1 or greater.

Many worm gears have an interesting feature that other gear sets do not have: worm can easily rotate gears, but gears cannot rotate them. This is because the penetration angle of the screw is very shallow, when the gear tries to rotate the screw, the friction between the gear and the screw will keep the screw in place.

Correct engagement

1. In the middle plane, the modulus and pressure angle of worm and worm gear are equal respectively, that is, the modulus of end face of worm gear is equal to that of axial surface of worm and is the standard value; the pressure angle of end face of worm gear shall be equal to that of axial surface of worm and shall be the standard value.

2. When the interleaving angle of worm gear is, it is necessary to ensure that the spiral direction of worm gear and worm must be the same. [1]

Material Science

The worm gear is usually cast tin bronze and aluminum iron bronze; low speed and unimportant transmission can be made of cast iron.

Cast iron bronze: good friction, good adhesion resistance, expensive price, slightly lower strength.

Cast aluminum iron bronze: friction reducing and anti gluing properties are slightly poor, but the strength is high and the price is both.

Cast iron: gray; ductile iron. Aging treatment should be carried out to prevent deformation.

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FAQ

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