This gear set is precision made using injection molded POM (Polyoxymethylene aka Delrin or Acetal).
POM is the perfect material for gears as it has high mechanical strength and rigidity, toughness and high resistance to repeated impacts and long-term fatigue endurance. It also has excellent resistance to moisture, gasoline, solvents, and many other neutral chemicals.
Bottom line is that this is the right material for gears over what other makers are using such as Nylon or ABS plastic. Not to mention these are super quiet.
The set comes with the following:
52,53 and 54 tooth spur gears
9,10,11 and 12 tooth pinions
This set is compatible with PN Racing's ball differentials (upgrade to 48 pitch MR2048, replacement for 64 pitch diffs: MR2050, MR2049 and F1005) and an upgrade to Kyosho's adjustable ball differential MZW436.
While we haven't verified, it should also fit GL Racing's GLR-006 & GLF-S-017 with the addition of a radial bearing. The gears may fit other manufacturer's differentials as well.
这款齿轮组使用赛钢材料精密注塑加工
POM赛钢由于其的机械强度，硬度，韧性，以及耐冲击和抗疲劳强度高的特性，非常适合用来制作齿轮。同时，赛钢耐酸碱腐蚀的特性也非常出色。
与其它齿轮所用的尼龙，ABS等塑料相比，赛钢更适用于制作齿轮部件，特别是其静音性能。
这个齿轮套装两部分组成：
52，53，54 大齿
9，10，11，12 马达齿
齿轮组兼容PN Racing的珠差（升级 48P MR2048到64P 差速需要： MR2025， MR2049，F1005），同时升级京商珠差需要：MZW436）
同时，我们没有确认是否通过额外的轴承可以适合GLR－006&GLF－S－017。这款差速器也可能适用于其它品牌的珠差