Brass gears.
Brass characteristics are its good strength and durability, as well as shaking transmission comfort, in the application range brass gears are suitable for some as a high load, pay attention to the wheel body rigidity needs of the reel; but the disadvantage is that brass gears are relatively heavy, in today's many pay attention to more lightweight and flexible reel obviously will increase its weight, so most are used in some more need high load needs of the reel.
In terms of processing technology, brass gears are mature and relatively difficult to process, the price of raw materials is also cheap, and the hardness is relatively soft. Such as: brass (C3604) Vickers hardness of ≥ 80, common brass for copper and zinc alloy, hardness is not very high so processing difficulties are relatively small, (higher strength brass hardness is too high, such as C6782 but this type of brass is not suitable for use as a pinion because too hard will damage other gear parts not discussed), so brass gears are mostly used in some of the needs of high-intensity fishing high load Reel or some entry-level reel used above.

Hard aluminum gears.
Hard aluminum gears are generally high-strength aluminum alloy material, aluminum alloy is lighter, although its strength is basically the same as brass, the operation of the reel winding sense is also high, but its durability is not as good as brass gears, normal use generally will not make any difference, but when the continuous use of its high load as time gets longer its durability will be reduced, once the aluminum teeth have some small problems, the gear bite part of a small Once the aluminum teeth have some small problems, the gear bite part of the small wear or defect will be very rewind winding comfort significantly reduced, which is what we call the tooth feeling (of course, generally not serious tooth feeling does not affect the use, but in the use of experience will have a slight discount), which is now a lot of people for the aluminum teeth heart stigma, and aluminum teeth surface will also let the gear grease drying time becomes shorter, so if out of fishing frequently, the need for frequent oiling maintenance cycle becomes shorter. However, the advantage of aluminum teeth is that it can make the reel's weight significantly lighter, and the winding sensation is also improved, which is the best choice for some reels that require a less strong fishing environment and demand, such as many common small and medium-sized reels for bass fishing, and fine fishing reels (spinning reels), using aluminum teeth will significantly improve the physical comfort of use.
Processing:
Although the super hard aluminum teeth are very light, it is more difficult to process and the material cost is more expensive. Take A7075 for example (other hard aluminum processing process is slightly the same) its Vickers hardness of 170, specific gravity of 2.8 very light (brass specific gravity of 8.5 heavier), hardness is much higher than brass, so in the processing is relatively more difficult, and hard aluminum processing process is more tedious, so the cost goes up, so that we will basically rarely see in the entry-level or cheap spooler Super hard aluminum teeth of the spool (entry and cheap spool generally use copper teeth or zinc alloy teeth), this kind of aluminum teeth are basically used in some high-end spool above, because the cost is relatively high.

Maintenance.
Copper teeth side because its surface (relatively microscopic perspective) is relatively rough, bringing the benefits of lubricant grease adhesion will be better, grease is not easy to use in the loss of gear set protection is better, extend the use and maintenance cycle.
The aluminum tooth side because the surface is relatively smoother, lubricating grease adhesion in the above relatively weak, in the use of grease will lose more, resulting in weaker protection of the gear set, grease is easy to dry, once the grease deterioration speed becomes faster, the use will feel uncomfortable, because the aluminum teeth on the sense of higher so the user caused by the discomfort will also be magnified, which is why many equipped with aluminum gear reel in This is why many reels equipped with aluminum gears are found to have a little noise after a period of use. This also shortens the maintenance cycle, if the fishing frequency is high, it needs frequent maintenance, of course, now some manufacturers have developed a high viscosity grease for aluminum teeth, adhesion will be relatively strong, so there is some improvement in this area.








 

Previous page: vs steel            Next page: welding