JK Products 48P Plastic Pinion Gear (3.17mm Bore) (23T)
About this part
JK Products plastic pinion gears are offered in a common 48P design with a wide array of teeth to suite the needs of performance R/C enthusiasts looking to get every last ounce of performance out of their vehicles. Thanks to its lightweight polymyer gear, enthusiasts will not only notice a smoother wear pattern with reduced friction on their drivetrain, but boosted performance thanks to lower rotating mass that provides incredible acceleration. Increased performance has never been so cost effective.
Features:
- Ultra Lightweight Hybrid design Aluminum/Polymer
- Molded teeth for ultra smooth gear mesh
- Thinner profile
- Quicker Motor RPM
- Must have for Stock racing
- Color coded for tooth count identification
- Purple: 26 Tooth
- Blue: 27 Tooth
- White: 28 Tooth
- Red: 29 Tooth
- Green: 30 Tooth
- Yellow: 31 Tooth
- Pink: 32 Tooth
- Black: 33 Tooth
CA Residents Prop 65 Warning
WARNING: This product can expose you to chemicals including Di(2-ethylhexyl)phthalate (DEHP), which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov Details...Reviews3.4 · 18 reviewsacross all options
The set screw is not 1.5mm like it should be. None of my standard RC tools work with it.
Grate lite gear. If you need a set screw it is a 4-40 x 1/8"
These gears work great if you run on carpet or use a transmission gear cover...if you run in dirt ouside they may pick up small particles and chip the teeth.
Installed in a Kyosho Javelin re re. 17.5T HW motor and ESC, Kyosho upgrade spur gear. The good: This gear works as advertised. Just by rolling the buggy on a flat surface, I could tell that rolling resistance was greatly reduced. Tested under power, the car was noticeably quicker. The bad: The gear is strangely noisy. It may be an imperial and not metric pitch. It also is very thin and I am not sure how long it will last, or whether it will cause my spur gear to develop weird wear patterns. The baffling: Why did JK make the grub screw imperial and not metric?
Works awesome with 17.5 class and a slipper eliminator. Have 0 issues for months now.
Reviewers are divided on this 48P plastic pinion. Many report smooth running, reduced rolling resistance, a slight speed gain, and little wear on carpet or clay with a slipper eliminator, especially in 17.5 and 21.5 classes. Others report early failures: the set screw strips easily, the shaft can be thin, and the teeth can chip in dirt. Several reviewers note the set screw is imperial (0.050 inch or 4-40) rather than the 1.5mm metric size they expected. Complaints about stuck pinions and a poor fit on a Traxxas BL-2S shaft also appear. Some one-star reviews name no variant, and the 1-star reviews span several tooth counts.
- + Smooth running and reduced rolling resistance
- + Reported speed gain under power
- + Little visible wear on carpet or clay
- + Lightweight design
- − Set screw strips easily
- − Set screw is imperial, not 1.5mm metric
- − Thin shaft and narrow tooth face
- − Teeth may chip in dirt; fit problems on some motor shafts