This SRB pinion gear is an RC-scale replacement part intended for SRB transmission assemblies. The 14T marking denotes the tooth count, which directly affects gear ratio and meshing behavior within the SRB system. Treat the component as a precision drive element for model helicopter SRB drives.
Installation notes: confirm the motor shaft diameter and the pinion's bore and mounting method before fitting, ensure the pinion slides onto the shaft cleanly, and secure any set screw or clamp fastener used by your SRB motor assembly. After installation, rotate the drive by hand to verify smooth engagement and to detect any binding or misalignment.
Tuning and mesh: the 14-tooth pinion changes the final gear ratio compared with other tooth counts, so expect variations in rotor rpm and torque. Adjust pinion-to-spur mesh to achieve minimal backlash without tight contact that raises friction; small axial or radial shifts can improve mesh. Re-check mesh under load if possible and inspect for even tooth contact along the face.
Maintenance: keep mating gears free of grit and excess lubricant, inspect teeth for wear and burrs after each flight session, and replace the pinion if excessive wear or tooth damage appears. As with all RC-scale drive parts, regular inspection ensures consistent performance and reduces secondary wear on the SRB assembly.
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