For the American 9220 crawler crane, the idler (also known as the front tumbler or guide wheel) is a crucial undercarriage component that maintains track tension and guides the track chain.
- Material: High-strength alloy steel (SCSiMn2H, ZG40Mn, or 35SiMn).
- Technique: Casting, followed by whole quenching, tempering, and surface hardening for wear resistance.
- Color: Standard black or per customer requirement.
Maintenance Components
When replacing a front idler on an American 9220, related components often required include:
- Shafts and Bushings: Cast Steel Products lists replacement shaft parts and bushings specifically for American front idler tumblers.
- Track Adjusters: Idlers are typically mounted to a yoke and track adjuster system; these are often sold as separate components but are critical for proper idler function.
Technical Details:
| Material | ZG40Mn2, SCSiMn2H |
| Technology | Casting |
| Heat Treatment | Whole Quenching and Tempering, then Surface Hardening |
| Advantage | Superior Material; Strict Quality Control; OEM Quality; Large Stock |
| Color | Black / Customer Requirement |
| Brand Name | EG |
| Warranty | 2500 Working Hours / One Year |
Pictures for American 9220 Idlers Details:
Do you need the weight and dimensions for shipping purposes, or are you looking for a service manual for idler replacement?
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