1989 Yeh Der Enterprise Co., Ltd. was established to provide plastic gears, gearboxes, and accessories. Professional manufacturer of various metal gears, plastic gears, plastic injection molded parts, and gearboxes. All procedures from moldflow analysis, mold design, mold making to injection molding are accomplished under one roof.
YEH DER, certified with ISO 9001, ensures that each step of manufacturing process is under stringent quality control.
Straight-toothed and have radial teeth used to transmit power and motion between parallel axes. Spur gears are widely used ...
read moreThe meshing between a helical gear and a worm is smoother and quieter than spur gears since the teeth on helical gears are ...
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High efficiency with irreversible motion and good for compact design. High load capacity and reduced vibration and noise.

The smallest gear in the gear train at the input and handles the least amount of torque. It is usually be mounted onto a shaft and transmit power indirectly to the output gear.




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