HPI Racing 10x15x4mm Ball Bearings (2-Pack)

Overview

The HPI Racing 10x15x4mm Ball Bearings (2-Pack) are genuine factory replacement bearings engineered for smooth, low-friction rotation in HPI RC vehicle drivetrains, wheels, and gearboxes.

Replacing worn or contaminated bearings is one of the most impactful maintenance tasks for any RC — restoring efficiency, reducing drag, and protecting drivetrain components.

Key Features

• Genuine HPI Racing replacement bearings
• Precision-ground steel races
• Sealed/shielded for dirt protection
• Standard 10x15x4mm metric size
• Sold as a 2-piece set

Performance Benefits

• Reduces drivetrain drag
• Improves runtime and top speed
• Protects shafts and gears from wear
• Restores factory-smooth rotation

Usage Notes

• Replace bearings in pairs for balanced wear
• Clean and re-oil periodically (or replace if seals fail)
• Use a bearing puller for stuck units

Technical Specs

• Type: Ball Bearing
• Inner Diameter: 10mm
• Outer Diameter: 15mm
• Width: 4mm
• Quantity: 2 pieces
• Manufacturer: HPI Racing

What's Included

• (2) HPI Racing 10x15x4mm Ball Bearings

Fitment

• Compatible with HPI RC vehicles using 10x15x4mm bearings
• Common drivetrain and gearbox applications

Summary

Restore drivetrain smoothness and efficiency with these genuine HPI 10x15x4mm bearings — a simple maintenance upgrade that pays dividends in runtime and performance.