D sub-hole gear 3mm12 teeth + rack and pinion rack and pinion N20 reduction motor gear plastic gear DIY

Note: This product includes gears and racks

012DF gear, the hole is D-shaped, suitable for D-axis motors, such as N20 geared motor

[Aperture]: 3mmD hole [number of teeth]: 12 teeth

[Outer diameter]: 7mm [Thickness]: 5mm

[Material]: POM plastic gear

[Weight]: 0.12 grams

[Fit to match]: All spur gears with 0.5 modules

The rack is a special gear type transmission part, which is straight. As shown in the figure above, when the circular pinion rotates, the rack does not rotate, but moves left and right, so the rack can change the rotation of the gear into a linear motion. This effect can be used to make telescopic or reciprocating mechanisms.

The rack and pinion should be used in conjunction with the gear. If you don’t know which gear to match, you can buy a gear package. Click here to select the gear package.

[Rack modulus]: 0.5, the modulus can be simply understood as the size of the tooth, the larger the modulus, the larger the tooth, and the gears of the same modulus can coincide with each other.

【Rack Length】: 125mm

[Rack height]: 7mm

[Tooth surface width]: 4mm

[Fixed Aperture]: Small hole 2.05mm, large hole 2.55mm

[Delivery List], 0.7 yuan 1 piece (the price refers to the price of the rack, excluding gears), can be cut off and used.

Large quantity can be wholesaled (more than 100 pieces per time)