The Nimrod Blackbird 39K series motors are built from durable materials. The 39K is an extremely high-speed motor, and thanks to its high RPM, it can also be used in short-stroke builds with 0.5 Joules or under 1 Joule setups. Make sure to manage the spring and sector gear properly to prevent pre-engagement, which can cause piston or sector gear damage.
Nimrod motors feature a cooling port at the bottom of the motor, which improves heat dissipation and reduces the risk of overheating. The CNC-machined end bell, made from highly heat-conductive aluminum, provides more efficient cooling and a more stable structure compared to traditional motors, enhancing the durability of the internal bearings, especially in case of gearbox malfunctions. The motor pinion gear is made of steel using MIM technology. The motor shaft and pinion gear are connected with a D-shaped fitting, allowing easy gear replacement without special tools.
We recommend using it with:
- Gear ratios: 32:1 / 18:1 / 16:1
- Springs: M100-M140
Specifications:
- RPM @ 11.1V: 39000
- TPA: 14
- Pinion gear shaft shape: D
- Weight: 160 g
- Shipping weight: 180 g
