XRAY 385621 Steel 21T/48P Pinion Gear Hardened Upgrade  [XR-385621]

XRAY 385621 Steel Pinion Gear 21T/48
Price:
CAD$20.53
Brand:
XRAY
Model:
XR-385621
Condition:
Brand New
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alt="XRAY 385621 Steel Pinion Gear 21T/48" title="XRAY 385621 Steel Pinion Gear 21T/48"
alt="XRAY 385621 Steel Pinion Gear 21T/48" title="XRAY 385621 Steel Pinion Gear 21T/48"

XRAY 385621 Steel Pinion Gear for reliable drivetrain performance

The XRAY 385621 steel pinion is a straightforward choice for hobbyists who need a tough 21-tooth, 48-pitch gear. Machined from durable steel, its precision-cut teeth reduce play and help maintain consistent gear mesh under load. This makes it suitable for both track days and weekend fun.

Chamfered edges and run-in finish for smooth mesh

Factory chamfering reduces initial binding and limits premature wear, while the run-in finish helps the gear seat quickly in your drivetrain. Those features combine to cut down setup time and keep noise and backlash to a minimum.

Simple replacement and routine maintenance

This pinion is useful for replacing worn parts or stepping up durability in an existing build. Regular inspection and correct pinion-mesh setup will maximise service life and maintain reliable shifting and acceleration response.
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 pinion fit my 48-pitch gearbox?

If your model uses a 48-pitch pinion, the XRAY 385621 21T will physically mesh with standard 48-pitch spurs; check shaft diameter and mounting method to ensure fit.

Do I need to bed in the gear?

The gear comes run-in from the factory, but a short, controlled running period at low load helps confirm smooth contact and seating in your specific drivetrain.

How should I maintain a steel pinion?

Keep the gear free of grit, check mesh and mounting screws regularly, and replace if teeth show chips or excessive wear to avoid damaging the spur.

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