XRAY 385621 21T/48P Steel Pinion Gear Precision Part  [XR-385621]

XRAY 385621 Steel Pinion Gear 21T/48
Price:
£11.02
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"

Precision steel pinion XRAY 385621 for steady drivetrain mesh

The XRAY 385621 pinion is a 21-tooth, 48-pitch steel gear made to provide consistent tooth contact and dependable wear characteristics. Its precision machining helps reduce vibration and keeps the drivetrain running smoothly under load.

Reduced wear with chamfered teeth and run-in finish

Chamfered profiles reduce edge stress and the run-in treatment means less break-in is required, helping the gear settle into correct mesh faster than untreated parts.

Maintenance friendly replacement for regular builds

Use this pinion to refresh a drivetrain or upgrade for better durability. Regular mesh checks and keeping the gear free of debris will maximise service life and performance stability.
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 cope with higher power setups?

Steel pinions like the XRAY 385621 generally handle higher torque better than softer materials, but confirm compatibility with your motor and spur before sustained high-power use.

Can I lighten this pinion for weight savings?

This model is a solid steel component and is not intended for lightening; if weight is a priority consider purpose-designed lightweight pinions rather than modifying steel parts.

What is the best way to set mesh with this gear?

Use a thin feeler or paper method to set a small clearance, then rotate the drivetrain to confirm even contact across the tooth faces before tightening the pinion.

Are replacement pinions widely available?

XRAY parts like the 385621 are commonly stocked by hobby retailers; keep a spare on hand if you run frequently to minimise downtime.

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