Kubota Carrier Roller Overview
Dingtai manufactures top carrier rollers that support the upper track chain on Kubota compact excavators, maintaining alignment and reducing track sag.
We operate factory-direct manufacturing with complete OEM production services for distributors and equipment fleets across North America and global markets.
Our rollers prevent premature track wear and costly downtime by resisting impact loads, abrasion, and seal failure in demanding jobsite conditions.
With over 20 years of engineering experience and ISO9001/SGS certified processes, Dingtai delivers consistent quality for every production batch.
Each roller uses 35MnB steel and deep quenching to achieve hard tread surfaces, extending service life under continuous heavy-duty operation.
Core Advantages
- Global Brand Compatibility: Direct-fit replacement for Kubota KX, U, and SVL series, ensuring correct mounting dimensions and stable track alignment.
- Premium 35MnB Material: High-strength alloy steel provides greater tensile strength and wear resistance than standard carbon steel carrier rollers.
- Deep Quenching/Heat Treatment: Tread surfaces are hardened to HRC 50-56, delivering superior impact and abrasion resistance under harsh jobsite conditions.
- ISO9001/SGS Certified: Complete quality control from raw material inspection to final assembly meets international procurement and quality standards.
Kubota Carrier Roller Catalog
Our catalog of Kubota Carrier Roller includes various specifications, fully compatible with Kubota excavators and compact track loaders.
Why Choose Dingtai?
1. Production Technical Parameters
| Parameter | Specification |
|---|---|
| Material | 35MnB alloy steel / 40Mn2 forged steel |
| Tread Hardness | HRC 50-56 |
| Heat Treatment | Deep quenching and tempering |
| Manufacturing Process | Precision forging, CNC machining, grinding |
| Certification | ISO9001:2015, SGS |
| Warranty | 12 months / 2,000 hours, whichever first |
2. OEM & Customization
We produce exact-fit carrier rollers based on customer drawings, OEM part numbers, or physical samples, with strict dimensional and tolerance control.
3. Applicable Models
| Machine Type | Compatible Brands | Popular Series/Models |
|---|---|---|
| Mini Excavators | Kubota | KX71-3, KX91-3, KX161-3, KX057-4 |
| Compact Excavators | Kubota | U35, U45, U55, U56 |
| Compact Track Loaders | Kubota | SVL75, SVL90, SVL97 |
4. Delivery & Logistics
We offer factory-direct pricing, flexible MOQ, and reliable ocean or air shipping with strong export packaging for North American distribution.
Technical Features
The roller shell is precision forged from 35MnB steel and deep hardened to HRC 50-56, preventing flat spots and uneven wear.
Floating seal design retains lubrication and blocks dirt, water, and fine abrasives from entering the bearing cavity.
CNC-machined bores and shafts ensure concentric rotation, reducing vibration and distributing track loads evenly across the roller.
Applications
- Mining and quarrying
- Road construction
- Demolition and site clearing
- Utility and pipeline projects
- Landscaping and agricultural operations
Frequently Asked Questions
What is the minimum order quantity for Kubota carrier rollers?
MOQ depends on part number. Trial orders are accepted for first-time buyers to verify fitment and quality.
What is the delivery time?
Standard specifications ship in 15-25 days after deposit confirmation. Custom orders typically require 30-40 days.
How deep is the heat treatment?
Tread surfaces are hardened to HRC 50-56. Effective depth is controlled according to roller size and application requirements.
What warranty policy applies?
We provide a 12-month or 2,000-hour warranty against material and workmanship defects, whichever occurs first.
Can you match Kubota OEM part numbers?
Yes. Provide the OEM part number, drawing, or sample and we supply an exact-fit aftermarket replacement.
Do you offer samples for testing?
Sample orders are available for evaluation before bulk procurement.
How do I confirm fitment for my machine?
Provide your Kubota model, serial number, or existing roller dimensions and photos for technical verification.
What materials are used in production?
Roller shells use 35MnB or 40Mn2 steel. Shafts use heat-treated alloy steel for durability.
Maintenance Guide
- Inspect roller tread and flanges monthly for uneven wear, cracking, or oil leakage around seals.
- Check mounting bolts to Kubota specified torque every 250 hours to prevent loosening.
- Replace carrier rollers when tread wear exceeds 30 percent or when bearing play is noticeable during service.
- Sealed rollers require no daily greasing, but damaged seals demand immediate replacement to avoid bearing failure.