Dozer Undercarriage Parts
The reliability of bulldozer idler is paramount to maintaining track tension and preventing derailment. Our Bulldozer Idler AT305808 is engineered as a precision replacement, manufactured to withstand the static weight and dynamic forces imposed by the 850J in demanding environments.
Product Features:
| Material | 50Mn/ 40MnB/ ZG40Mn/ 35Mn |
| Finish | Smooth |
| Colors | Black or yellow |
| Technique | Forging, Casting, Machining, Heat treatment Quenching |
| Surface Hardness | HRC52-56, deepth: >4mm |
| Warranty time | 2000 hour |
| MOQ | 2 piece |
| Delivery Time | Within 7-30 days after payments |
| HS Code | 8431499900 |

The durability of this Bulldozer Idler is rooted in advanced manufacturing protocols designed to maximize service life and minimize failure risk.
Precision Forging and Machining: The idler shell is forged to provide superior grain flow and density, resisting cracking under high stress. All running surfaces are precisely machined to ensure smooth track link engagement and minimal rolling resistance.
Deep Induction Hardening: Critical running surfaces are treated with deep induction hardening, achieving optimal hardness. This significantly enhances the wear resistance necessary for the John Deere 850J's aggressive operational cycles.
Advanced Sealing System: The internal lubrication is protected by high-integrity floating seals, preventing abrasive contaminants (dirt, mud, water) from reaching the bearing structure, which is vital for preventing premature failure of the Idler AT305808.
Q1: How does your manufacturing process ensure the longevity of the Bulldozer Idler AT305808?
A1: We prioritize material integrity. Our Idler AT305808 is forged from high-grade alloy steel and treated with a differential induction hardening process. This technique ensures the running tread achieves optimal surface hardness to resist abrasion while maintaining a tough, flexible core to absorb the heavy static and dynamic loads of the John Deere 850J.
Q2: Are your Idler AT305808 units interchangeable with the OEM part without modifications?
A2: Yes. Our manufacturing is based on precise OEM specifications. We guarantee dimensional accuracy and seamless fitment for the John Deere 850J Bulldozer. Every unit undergoes strict quality control checks to ensure it is 100% plug-and-play compatible, eliminating costly installation delays.
Q3: What is the main benefit of buying the AT305808 Idler directly from your factory?
A3: The benefit is dual: maximum quality assurance and optimized cost. Buying Factory Direct means you bypass distributor markups to secure genuine wholesale pricing. It also ensures direct accountability, as you receive technical support and warranty protection straight from the manufacturer.
Q4: What are the terms for bulk purchasing the John Deere 850J Idler?
A4: We specialize in wholesale supply for fleets and resellers. While we maintain a flexible Minimum Order Quantity (MOQ), we encourage buyers to submit their required volume for the Idler AT305808 to receive our best tiered pricing and freight optimization proposals.
Q5: How quickly can you ship a large order of the Idler AT305808 internationally?
A5: We maintain substantial ready stock of high-demand parts like the AT305808. Our efficient B2B logistics team ensures that large orders are processed and prepared for global shipment quickly, minimizing your project downtime. Contact us for the current lead time based on your destination port.
Address : Building 17, Block 9, Section D, 27th Road, Chenghui International Hardware and Electrical City, Xiamei Town, Nan'an City, Quanzhou, Fujian Province
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