LIEBHERR-R974- front idler(P/N:5000127,5601867,7490851)China under carriage parts manufacture/idler factory/guide wheel customization

Product Specifications

LIEBHERR-R974- front idler(P/N:5000127,5601867,7490851)China under carriage parts manufacture/idler factory/guide wheel customization

Liebherr 974 Idler Specifications

• Type: Front idler (track tensioning)

• Material: Forged steel with hardened wearing surfaces

• Bearing Type: Sealed roller bearings (grease-lubricated)

• Mounting Type: Adjustable for track tensioning

• Weight: Approximately 150-200 kg (varies by model)

Common Part Numbers

(Always verify with your machine serial number)

• Complete Idler Assembly:

  • Liebherr P/N: LH544 ,41408940,950371,5000127,561876,7365656,7490851,1416646

  • Aftermarket equivalents available

• Idler Components:

  • Bearings: 22320 CC/W33 (common size - verify)

  • Seals: TC 80x110x12 (example)

Where to Get Technical Drawings

1. Liebherr Parts Portal (https://parts.liebherr.com)

   • Enter your machine serial number

   • Navigate to "Undercarriage" > "Idler" section

2. Liebherr Dealer Support

   • Contact your local Liebherr dealer with your serial number

   • Request "exploded view diagram" of idler assembly

Aftermarket Options

1. Quality Aftermarket Suppliers:

   www.cqctrack.com

2. Considerations When Buying Aftermarket:

   • Verify exact dimensions match OEM

   • Check bearing specifications

   • Confirm steel hardness ratings

Maintenance Tips

1. Regular Inspection:

   • Check for cracks or worn flanges

   • Monitor bearing play (should be < 2mm radial movement)

   • Look for grease leaks

2. Proper Adjustment:

   • Maintain correct track tension (typically 1-1.5" sag at mid-span)

   • Follow Liebherr's tensioning procedure

3. Lubrication:

   • Use high-quality lithium complex grease

   • Grease every 50-100 operating hours

Troubleshooting Common Issues

Symptom	Possible Cause	Solution
Excessive track sag	Worn idler bushings	Replace idler assembly
Track running off	Misaligned idler	Adjust alignment
Grinding noise	Failed bearings	Replace bearings/seals
Grease leakage	Damaged seals	Rebuild or replace idler