Infinity IF15-2 New 2-Speed Transmission Set

Infinity has release a new 2-speed transmission set for its World Championship winning IF15-2 1:10 Nitro Touring Car.  Featuring a revised spur gear mounting section, achieved through a mold modification, the newly designed 2-speed housing supports the assembly with two different-sized bearings, providing improved precision and significantly reducing play.  The fixing area between the 2-speed hub and main shaft has also been reinforced by increasing the diameter to 12 mm and adding more material. Despite the increased strength, the total weight of the complete unit remains virtually unchanged, from 24.8 grams for the previous version to 25.1 grams for the new version.  The internal diameter of the 2-speed housing has been reduced by 0.1 mm to improve shifting feel.  The shape of the adjustment openings has also been optimised, while the shoes can be installed in either leading or trailing orientation.  Adjustment openings are intentionally provided on both sides of the housing to improve rotational balance. The 2-speed housing also features a high-hardness plated surface treatment, helping to maintain a stable contact surface with the shoes over a long period of use.  New shoes now feature a roller-type weight system, helping to maintain more consistent shift timing and adjustment screws have also been increased to M4 size, making the adjustment less likely to change during operation.  The mold-revised spur gears are also compatible with the previous 2-speed system.

Source: Creation Model [creationmodel.net]