XRAY 355154 Classic 42T Active Center Spur Gear  [XR-355154]

XRAY 355154 Active Center Differential Spur Gear 42T
Price:
CAD$76.24
Brand:
XRAY
Model:
XR-355154
Condition:
Brand New
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Engineered 42T Spur Gear for XRAY XB Classics

The XRAY 355154 Active Center Differential Spur Gear is a replacement part tailored to older XB series RC cars. Machined from HUDY steel, this 42-tooth component focuses on long service life and accurate tooth engagement.

HUDY Steel Strength and Treatment

The gear uses HUDY steel formulated for drivetrain parts and receives a controlled hardening process that fortifies both surface and core for reduced wear during regular use.

Precision Machining for Reliable Fit

Each unit is produced on precise German machining equipment to ensure consistent tolerances that match differential outdrives for a clean, dependable fit.

Clear Laser Marking

The part carries a laser-engraved "Active 42T" marking for quick identification and a neat finished look on your car's drivetrain.
Remark :
Due to limited stock availability, please notice that some XRAY items may have to order from the factory and the ready time is around 4-6 weeks. Customer purchases the item is assumed to accept the waiting time which allows us to order directly from the manufacturer if the item is out of our warehouse.

Will this gear fit all older XB differentials?

This spur gear is intended for legacy XB series cars that use the XRAY 42T center spur format; check your car's parts list or measure tooth count and bore before fitting.

How should I check gear mesh after installation?

Install the gear, secure the differential, and rotate the drivetrain while observing tooth contact; aim for even contact across the tooth face with a small clearance to avoid binding.

Does HUDY steel need a break-in?

A short running period under light load helps mating gears seat together; this can reduce initial noise and ensure smoother operation without aggressive bedding procedures.

Can I upgrade bearings when fitting this gear?

Upgrading to good quality bearings is a sensible complement to a new spur gear, as it reduces friction and helps maintain precise alignment under load.

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