3RACING CRA-117 Crawler Ex Real 16T Pinion Gear - Race Setup Focus  [CRA-117]

3RACING Crawler Ex Real Pinion Gear 16T - CRA-117
Price:
USD$2.30
Brand:
3Racing
Model:
CRA-117
Condition:
Brand New
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Technical note on 3RACING CRA-117 integration

The 3RACING Crawler Ex Real 16T pinion, model CRA-117, is specified for tuned crawler applications that require consistent gear mesh and repeatable torque response. It is designed to interface cleanly with Ex Real pinion mounts and gearbox geometry.

Performance considerations for tuning

The 16T choice provides a compromise between wheel torque and track speed that suits technical competition stages. When setting up for timed runs, pair the pinion choice with motor KV, ESC settings and wheel diameter to achieve target crawl speed and thermal limits.

Fitting and verification procedure

Install the pinion following standard setup practices: secure the pinion to the motor shaft, check axial play, and fine tune mesh with shims if required. Verify contact pattern under low load then perform short system checks before extended runs.

What gear combinations pair well with CRA-117 for competition?

For competition, match the 16T pinion to a spur gear that yields a crawl speed target based on course layout; lower overall ratio for technical sections and slightly higher for sections requiring pace.

Any thermal or torque limits to note?

Monitor motor temperature under competition loads; the CRA-117 affects torque at the wheels, so ensure your motor and ESC are rated for continuous loads expected in timed stages.

Recommended checks after high stress runs?

Inspect tooth faces for wear, confirm gear mesh, and check pinion set screw torque. Replace or service components showing deformation to maintain competitive reliability.