Track Support Wheel - AM16

Track Support Wheel (Roller) – AM16

Genuine replacement track support wheel (top roller) for the AM16 1.6T mini excavator undercarriage. Supports and guides the upper track run, reducing friction and wear on the boom structure.

Specifications

• Type: External-mount support wheel (sealed roller)
• Wheel Diameter: 90mm
• Bore Diameter: 20mm (sealed axle)
• Material: Ductile iron hub, sealed bearing
• Bearing Type: Double-row deep-groove ball bearings (sealed, grease-lubricated)
• Width: 72mm (matches track pitch)
• Weight: Approx. 2.5 kg

Compatibility

Fits: AM16 1.6T mini excavator

Track Size: 230 × 72 × 44 rubber tracks

Mount Type: Bolt-on bracket (two M10 fixing bolts)

Wear Indicators

• Flat spots or visible wear on wheel surface
• Grinding or squealing noise during track movement
• Difficulty rotating wheel by hand (bearing seizure)
• Track rubbing or tilting during operation

Installation Notes

• Remove old wheel by unbolting M10 bracket fasteners
• Inspect bracket for cracks or bending (replace if damaged)
• Ensure wheel spins freely before installation
• Tighten mounting bolts to 40–50 Nm (hand-tight + half turn)
• Check wheel alignment with track centerline
• Test track movement through full range; listen for smooth rotation

Maintenance

• Sealed bearings — no grease point required
• Inspect for wear at 500-hour service intervals
• Typically replaced when tracks are renewed (paired replacement recommended)
• Check bracket bolts weekly during heavy-use seasons