The Hyundai U-Yoke is a forged undercarriage component that connects the hydraulic track adjuster to the recoil spring assembly on Hyundai excavators.
Dingtai provides factory-direct supply and full OEM manufacturing services for global construction equipment distributors, rental fleets, and undercarriage repair specialists.
It prevents track misalignment and undercarriage downtime by resisting bending, cracking, and pin bore wear under high static and shock loads.
With over 20 years of track component production experience, Dingtai is ISO9001:2015 and SGS certified, supplying consistent metallurgical quality to demanding markets.
Made from 35MnB alloy steel and processed with deep quenching and tempering, every U-Yoke maintains high core strength and surface hardness.
Core Selling Points
- Premium 35MnB Material: Forged from 35MnB steel for high tensile strength, impact toughness, and fatigue resistance under severe track tension loads.
- Deep Quenching/Heat Treatment: Controlled heat treatment creates a hardened surface and tough core, extending service life in abrasive, high-load undercarriage conditions.
- Global Brand Compatibility: Precision-machined to match Hyundai OEM drawings, ensuring direct fit with R-series excavators and other compatible Hyundai equipment without modification.
- 100% QC Inspection: Every U-Yoke passes dimensional checks, hardness testing, and magnetic particle crack detection before shipment to guarantee field reliability.
Our catalog of Hyundai U-Yoke includes various specifications, fully compatible with Hyundai excavators and bulldozers.
Why Choose Dingtai?
Production Technical Parameters
| Parameter | Specification |
|---|---|
| Material | 35MnB / 40Cr alloy steel |
| Surface Hardness | HRC 48-55 |
| Core Hardness | HB 250-320 |
| Heat Treatment Depth | 4-8 mm |
| Manufacturing Process | Forging, CNC machining, heat treatment, surface treatment |
| Certification | ISO9001:2015, SGS |
| Warranty | 12 months / 2,000 hours |
OEM & Customization
We manufacture U-Yokes to customer drawings, samples, or Hyundai OEM part numbers. Custom dimensions, bolt patterns, and pin bore tolerances follow strict OEM standards.
Applicable Models
| Machine Type | Compatible Brands | Popular Series/Models |
|---|---|---|
| Crawler Excavator | Hyundai | R210, R215, R220, R290, R305, R320, R360, R450 |
| Crawler Bulldozer | Hyundai | Hyundai crawler dozer series, confirm OEM part number |
Delivery & Logistics
We provide factory-direct pricing, flexible trial orders, and reliable ocean freight from Quanzhou. Standard export packaging protects components during transport to US ports.
Technical Features
During track adjustment, the U-Yoke transfers hydraulic force into the recoil spring assembly. It must withstand cyclic side loads without bending or cracking.
We precision bore and machine pin holes after forging to ensure alignment. This reduces uneven wear on the adjuster piston, seals, and mounting brackets.
Deep quenching produces a hardened surface layer on high-stress zones while maintaining a tough core, preventing plastic deformation in rock or demolition applications.
Applications
- Mining: Constant rock abrasion and high-impact loading require durable track tension components.
- Road Construction: Long operating hours and graded surfaces demand stable track adjustment.
- Quarrying: Heavy bucket loads and sharp aggregate increase undercarriage stress.
- Demolition: Frequent reversing and uneven ground test U-Yoke structural integrity.
Frequently Asked Questions
1. What is your MOQ for Hyundai U-Yoke?
Trial orders of 1-5 pieces are accepted. Bulk pricing applies to full container quantities.
2. What is the delivery time?
Stock items ship within 7 days. Custom OEM production typically takes 20-30 days depending on quantity.
3. How deep is the heat treatment?
Surface hardening depth ranges from 4 mm to 8 mm depending on part size, with typical hardness of HRC 48-55.
4. What is your warranty policy?
We provide a 12-month or 2,000-hour warranty against manufacturing defects under normal operating conditions.
5. Can you match my Hyundai part number?
Yes. Send the OEM part number, drawing, or sample. We verify dimensions and material before production.
6. What material is used for the U-Yoke?
We use 35MnB or 40Cr alloy steel, forged and heat treated according to OEM requirements.
7. Do you produce U-Yokes for other brands?
We specialize in Hyundai specification U-Yokes but can engineer components for other excavator and bulldozer brands from drawings.
Maintenance Guide
- Before installation, check pin bore and bushing clearance. Clean mating surfaces to ensure full contact and alignment.
- After mounting, grease the tensioner assembly and confirm the U-Yoke articulates freely without binding or side play.
- Inspect for cracks, bending, or pin bore wear every 500 operating hours or during routine undercarriage service.
- Replace the U-Yoke if pin bore clearance exceeds 2 mm or visible deformation occurs to prevent track frame damage.