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Most engines use pulley and belt mechanism to transfer motion from the crankshaft to the camshaft. However, there are other engine designs that feature gears instead of pulleys. Crane cam gears are aftermarket automotive parts that can be purchased to replace the original cam gears of the engine. Although there are many advantages of using pulleys, cam gears allow more engine strength or power to be transferred. On the other hand, pulleys allow bigger engines to be designed. Furthermore, pulleys let the engine camshaft to be more versatile but simpler in design. However, engine cam gears require lesser maintenance compared to pulleys.

However, there are engine designs that feature cam gears that utilize chain belts similar to bicycle chains. Automobile engines with cam gears can work as effectively and efficiently as rubber belt-operated cams. Nonetheless, these types of cam mechanisms are comparatively noisier than the rubber belt-operated cams. Cam gears permit more compact but powerful engines. Cam gears are also less susceptible to wear and tear compared to engine rubber belts. Cam gears can better withstand extreme temperature, friction and mechanical stress. Crankshaft output is directly transmitted to the cam gears. Typically, the crankshaft gear has twenty teeth while the cam gear has forty teeth. Consequently, the camshaft rotates at half the rotational rate of the crankshaft.

Since the crankshaft gear only has half the number of teeth of the cam gear, one complete turn of the crankshaft gear is only equivalent to half turn of the camshaft gear. There are at least two camshafts in a typical engine. One camshaft drives the exhaust valves while another camshaft drives the intake valves. Cam gears may be durable but they are not totally invulnerable. Corrosion, overheating and friction may cause the cam gears to deteriorate. Here at Parts Train, we offer high quality cam gear replacement products for various types, models and makes of automobile engine.

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