Tamiya TB04 Precision Delrin 48P 66T Spur Gear DTB4066T by GPM  [DTB4066T]

Tamiya TB04 Delrin Spur Gear 48 Pitch 66T - 1pc - GPM DTB4066T
Price:
USD$5.50
Brand:
GPM
Model:
DTB4066T
GTIN:
4894538053197
Condition:
Brand New
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Precision Delrin Spur for TB04 Chassis

This single-piece Delrin spur gear is engineered as an aftermarket replacement for the Tamiya TB04 chassis, cut at 48 pitch with a 66-tooth profile for the TB-04 large spur position. Supplied as 1 pcs, it is intended to serve as a direct service spare where a durable acetal alternative is desired.

Delrin (acetal) was selected for its low friction coefficient and dimensional stability under typical RC torque and thermal conditions, supporting repeatable mesh and predictable wear characteristics on 48 pitch gear trains. Confirm tooth count and pitch against the motor pinion before installation to maintain correct gear engagement and gearbox reliability.

Service notes: install as a TB-04 spur replacement, verify axial alignment and backlash, inspect gearbox bearings and the pinion for wear prior to reuse, and manually rotate the drivetrain to confirm smooth operation before final assembly. This part is intended for model use only.

What inspection points ensure correct fitment?

Confirm 48 pitch and 66 tooth count, check axial runout on the shaft, and verify pinion tooth condition to prevent uneven loading on the Delrin spur.

How should I set gear mesh with Delrin?

Start with minimal backlash, use a thin shim if needed to achieve even tooth contact across the mesh, and rotate under hand load to confirm uniform contact patterns.

Are there torque limits to consider?

Delrin performs well for standard hobby power levels; for sustained high torque or heavy brushless setups evaluate wear frequently and consider a metal spur if recurring deformation appears.