Dingtai manufactures track rollers for Kubota undercarriages as critical components supporting machine weight and maintaining precise track chain alignment in compact excavators.
As a factory-direct ISO9001 manufacturer, we provide complete OEM services including custom dimensions, material upgrades, and private labeling for Kubota undercarriage distributors worldwide.
Our rollers resist flange wear, seal failure, and shaft pitting, reducing unplanned downtime and lowering total operating costs for rental fleets and earthmoving contractors.
With 20+ years of undercarriage manufacturing and ISO9001/SGS certified processes, we deliver consistent hardness, dimensional accuracy, and traceable quality for heavy-duty applications.
Each roller employs 35MnB steel, deep quenched to HRC 52-58, with precision-machined contact surfaces and sealed lubrication to withstand high-impact excavator loads.
Core Selling Points
- Premium 35MnB Material: Roller shells and shafts are forged from 35MnB steel for high tensile strength, impact resistance, and reduced deformation under continuous excavator load.
- Deep Quenching/Heat Treatment: Induction hardening penetrates 4-8 mm depth, achieving HRC 52-58 surface hardness while retaining a tough core to resist cracking and wear.
- ISO9001/SGS Certified: Manufacturing follows ISO9001 quality systems with SGS material inspection, ensuring every batch meets international chemical and mechanical property standards.
- OEM Capabilities: We match original Kubota drawings, dimensions, and part numbers, providing exact fitment for KX and U series machines without field modification.
Product Grid
Our catalog of Kubota Track Roller includes various specifications, fully compatible with Kubota KX, U, and SVL series excavators and compact track loaders.
Why Choose Dingtai?
1. Production Technical Parameters
| Parameter | Specification |
|---|---|
| Material | 35MnB alloy steel |
| Surface Hardness | HRC 52-58 |
| Quenching Depth | 4-8 mm |
| Manufacturing Process | Forging, CNC machining, induction hardening, precision grinding |
| Seal Type | Lifetime-lubricated floating seal |
| Certification | ISO9001, SGS |
| Warranty | 12 months / 1,500 operating hours |
2. OEM & Customization
We manufacture from customer drawings or original samples, customizing dimensions, hardness, and branding to meet Kubota replacement specifications without compromise.
3. Applicable Models
| Machine Type | Compatible Brands | Popular Series/Models |
|---|---|---|
| Mini Excavator | Kubota | KX018, KX121, KX040, KX057, KX080, U17, U35 |
| Compact Track Loader | Kubota | SVL75, SVL95 |
| Compact Excavator | Kubota | U55, KX033, KX015 |
4. Delivery & Logistics
We offer factory-direct pricing, flexible MOQ, and reliable sea or air shipping with reinforced export packaging to shorten lead times for US buyers.
Technical Features
Floating seal system: paired metal seal rings rotate under pressure and maintain an oil film, blocking abrasive dirt and moisture from entering the roller cavity.
Bimetal bushing design: steel-backed bushings reduce friction between shaft and roller shell, ensure uniform load distribution, and prevent galling under high radial stress.
Induction-hardened tread: deep martensitic surface layer resists spalling and wear, while the ductile core absorbs impact shock in rock and uneven ground.
Applications
- Mining
- Road Construction
- Quarrying
- Demolition
- Utility Contracting
- Landscaping
- Agricultural Drainage
Frequently Asked Questions
- Q: What is the minimum order quantity for Kubota track rollers?
- A: Standard MOQ is 20 pieces per specification. Sample orders are accepted for quality verification.
- Q: How long is delivery after order confirmation?
- A: Stock sizes ship within 7-10 days. Custom production typically requires 25-35 days depending on order volume.
- Q: What heat treatment depth do your rollers achieve?
- A: Induction hardening depth ranges from 4 to 8 mm, with surface hardness HRC 52-58.
- Q: What warranty policy applies?
- A: We provide 12 months or 1,500 operating hours against manufacturing defects, whichever comes first.
- Q: Can you match Kubota OEM part numbers?
- A: Yes. Supply your part number or drawing; we cross-reference and manufacture to original dimensions.
- Q: Are these direct replacement rollers for Kubota excavators?
- A: Yes, they are aftermarket replacement rollers designed for direct fitment on specified Kubota KX, U, and SVL models.
Maintenance Guide
- Installation: Clean mounting bores, apply specified torque, and verify track sag after installing new rollers to prevent uneven loading.
- Inspection: Every 250 operating hours, check for oil leakage, flange wear, and axial play, especially in sand, clay, or rocky conditions.
- Replacement: Replace rollers when flange thickness wears by 25% or leakage appears; this prevents track chain misalignment and drive motor overload.