HPI Racing 5x11x4mm Ball Bearings (2-Pack)

Overview

The HPI Racing 5x11x4mm Ball Bearings (2-Pack) are genuine factory replacement ball bearings designed for smooth, low-friction rotation in HPI RC drivetrains, wheel hubs, and gearboxes.

Bearings are wear items — keeping spares on hand restores drivetrain efficiency and helps protect shafts and gears from premature wear.

Key Features

• Genuine HPI Racing replacement bearings
• Precision-ground steel races
• Standard cylindrical outer race
• Sealed/shielded against dirt
• Sold as a 2-piece set

Performance Benefits

• Reduces drivetrain drag
• Improves runtime and efficiency
• Protects shafts and gears
• Restores factory-smooth rotation

Usage Notes

• Replace in pairs for balanced wear
• Clean and oil periodically
• Use a bearing puller for stuck units

Technical Specs

• Type: Ball Bearing
• Inner Diameter: 5mm
• Outer Diameter: 11mm
• Width: 4mm
• Quantity: 2 pieces
• Manufacturer: HPI Racing

What's Included

• (2) HPI Racing 5x11x4mm Ball Bearings

Fitment

• Compatible with HPI RC vehicles using 5x11x4mm bearings
• Drivetrain, gearbox, and shaft support applications

Summary

Restore smooth, efficient rotation with these genuine HPI 5x11x4mm ball bearings — a simple, high-impact maintenance item for any compatible HPI build.