Dingtai manufactures replacement Kubota sprockets, transferring final drive torque to track chains while maintaining accurate crawler alignment in undercarriage systems.
Factory-direct production covers OEM manufacturing, custom dimensions, CNC machining, and export packing, serving global distributors with consistent supply.
These sprockets resist tooth wear, breakage, and pitch elongation, preventing premature track failure and reducing costly downtime on compact excavators.
With over 20 years of undercarriage manufacturing and ISO9001/SGS-certified processes, Dingtai ensures repeatable metallurgy, hardness, and dimensional accuracy.
Sprockets are forged from 35MnB steel and deep quenched to HRC 50-55, producing hard tooth surfaces with tough impact-resistant cores.
Core Selling Points
- Premium 35MnB Material: Forged from 35MnB alloy steel, our Kubota sprockets deliver high core strength and excellent wear resistance under heavy cyclic loading.
- Deep Quenching/Heat Treatment: Computer-controlled deep quenching achieves HRC 50-55 on tooth surfaces while preserving a ductile core to resist impact and cracking.
- Global Brand Compatibility: Direct replacement for Kubota KX, U, and SVL series undercarriages, with OEM part number cross-referencing and dimensional verification.
- 100% QC Inspection: Every sprocket passes dimensional inspection, hardness testing, and magnetic particle checks before shipment, ensuring zero-defect delivery.
Product Range
Our catalog of Kubota Sprockets includes various specifications, fully compatible with Kubota excavators and bulldozers.
Why Choose Dingtai?
Production Technical Parameters
| Parameter | Specification |
|---|---|
| Material | 35MnB / 40MnB alloy steel |
| Tooth Surface Hardness | HRC 50 – 55 |
| Core Hardness | HRC 30 – 40 |
| Heat Treatment Depth | 3 – 6 mm depending on part section |
| Manufacturing Process | Forging, CNC machining, deep quenching, tempering |
| Certification | ISO9001:2015, SGS material report |
| Warranty | 12 months against manufacturing defects |
OEM & Customization
We produce from customer drawings or samples, matching tooth profile, bore, bolt pattern, and hardness to OEM specifications.
Applicable Models
| Machine Type | Compatible Brands | Popular Series/Models |
|---|---|---|
| Mini Excavators | Kubota | KX018, KX040, KX057, KX080 |
| Compact Excavators | Kubota | U17, U25, U35, U55 |
| Compact Track Loaders | Kubota | SVL65, SVL75, SVL90 |
Delivery & Logistics
Reliable shipping from Quanzhou Port with export-grade packing; factory-direct pricing and flexible MOQ support both stock and custom OEM orders.
Technical Features
The sprocket tooth profile is precision machined to distribute track load evenly across engagement surfaces, reducing localized stress and premature chain wear.
Deep quenching transforms the tooth surface into martensitic steel at HRC 50-55, while the tempered core remains tough enough to absorb bucket impacts.
Optional induction hardening on tooth flanks further improves abrasive wear life in sandy or rocky ground conditions without increasing brittleness.
Applications
- Utility and underground construction
- Road repair and municipal works
- Landscaping and trenching
- Demolition and site preparation
- Agricultural drainage and forestry
Frequently Asked Questions
What is the MOQ for Kubota sprockets?
Standard MOQ is 10-20 pieces per specification depending on size and customization.
How long is delivery?
Standard production takes 25-35 days; custom OEM orders require 35-45 days after drawing confirmation.
What material do you use?
We use 35MnB or 40MnB alloy steel, quenched and tempered for strength and wear resistance.
How deep is the heat treatment?
Tooth surface hardness is HRC 50-55; effective hardening depth is typically 3-6 mm depending on part section.
What warranty do you provide?
12 months against manufacturing defects under normal operating conditions.
How do I match my part number?
Send the Kubota part number, drawing, or sample. We cross-reference dimensions and confirm fitment before production.
Can you produce non-standard sprockets?
Yes, we accept drawings and samples for custom bore, bolt pattern, tooth count, and hardening specifications.
Do you provide samples?
Yes, sample orders can be arranged for first-article inspection and field evaluation.
Maintenance Guide
- Clean mounting surfaces and inspect bolt holes; torque bolts to Kubota specifications during installation.
- Check tooth wear every 500 hours; look for hooked, sharpened, or uneven teeth.
- Replace sprocket and track chain together if tooth wear exceeds 20% or chain pitch elongation exceeds 3%.
- Maintain correct track tension; over-tensioning increases sprocket tooth load and accelerates wear.
- Store spare sprockets with rust inhibitor in dry, ventilated conditions.