E70B Track Roller Durable Bottom Roller for Caterpillar CAT Mini Excavators
Robust E70B track roller designed for CAT excavators, built with high-strength steel and precise machining for superior wear resistance and compatibility.
| Material | 50Mn/40MnB |
|---|---|
| Surface Hardness | HRC53-58,deepth: 8-12mm |
| Colors | Black or yellow or customized |
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Kinton Parts is trusted by professionals worldwide for delivering high-quality parts for excavators, bulldozers, and other construction machinery—with guaranteed performance and durability.
High-Strength Material and Heat Treatment Technology
Each roller is produced with top-grade materials and advanced heat treatment to withstand daily wear and harsh site conditions.
- Roller Body: Forged from premium 45# steel or 50Mn, known for strength and toughness.
- Bushing: Made of wear-resistant 40Cr or 42CrMo steel, hardened to resist friction and deformation.
- Shaft: Induction hardened to HRC 52–58 for superior fatigue resistance and strength.
This combination of materials ensures durability under both vertical loads and lateral track movements.
High-Quality Materials and Heat Treatment for E70B Track Rollers
The track rollers for the E70B are crafted from premium alloy steels such as 50Mn or 40MnB, valued for their excellent tensile strength and superior resistance to wear in harsh operating conditions. Following the forging process, these rollers undergo a rigorous deep quenching heat treatment, which creates a hardened, wear-resistant surface layer while maintaining a resilient core to withstand heavy impacts and prevent cracking.
Precision CNC machining is applied to ensure exact dimensional tolerances. Additionally, the rollers feature sealed lubrication systems with an inner bushing and shaft design, guaranteeing reliable performance and extended service life even in muddy, dusty, or gravel-filled environments.
Precision Manufacturing Process for E70B Undercarriage Rollers
Our in-house manufacturing process ensures quality at every step—from forging, rough machining, and heat treatment to final assembly and inspection. Each roller undergoes tight tolerance CNC machining and automated assembly with quality seals, guaranteeing dimensional accuracy and oil retention. The result is a roller that performs smoothly, resists failure, and fits perfectly with CAT undercarriage systems.
Heat Treatment
Machining Process
CNC turning and milling ensure dimensional accuracy
Assembly
Running Test
Simulated load test to verify functionality
Paint Spraying
Anti-rust coating for surface protection
Packing
OEM Undercarriage Parts for Caterpillar Excavator
| BRAND | MACHINERY MODEL NUMBER | |||||||
|---|---|---|---|---|---|---|---|---|
| CATERPILLAR-CAT | CAT55 | CAT225 | CAT245 | CAT311 | CAT312 | CAT312B | CAT315 | CAT320 |
| CAT320B | CAT320C | CAT320D | CAT320L | CAT322 | CAT324 | CAT325 | CAT325B | |
| CAT325BL | CAT330 | CAT330B | CAT330BL | CAT330C | CAT330D | CAT345 | CAT345B | |
| CAT973 | E55 | E70 | E70B | E120 | E120-1 | E120B | E140 | |
| E200B | E200-5 | E215 | E240 | E300B | E300L | E311 | E312 | |
| E312B | E320 | E320BL | E320C | E320D | E320DL | E320L | E320S | |
| E322B | E322C | E324 | E324D | E324DL | E325 | E325B | E325L | |
| E329DL | E330 | E330B | E330C | E330D | E330DL | E345 | E345B | |
| E450 | CAT301.5 | CAT302.5 | CAT303.5 | CAT305 | CAT307 | CAT308 | CAT313 | |
| CAT316 | CAT318 | CAT320E | CAT320GC | CAT323 | CAT326 | CAT329 | CAT336 | |
| CAT340 | CAT349 | CAT350 | CAT365 | CAT374 | CAT375 | CAT385 | CAT385CL | |
| CAT390 | CAT390D | CAT390DL | CAT390FL | CAT395 | CAT6015 | CAT6015B | CAT6015D | |
| CAT6020 | CAT6020B | CAT6030 | CAT6030B | CAT6030D | CAT6040 | CAT6040B | ||
Looking for a specific make or model not listed here? Reach out and we’ll be happy to assist.
OEM Compatibility
This track roller is engineered to directly replace OEM parts on the Caterpillar E70B series and equivalent undercarriage frames. It ensures hassle-free installation and consistent performance.
If your machine uses the E70B track frame, this roller will be a direct replacement without modification.
Application Scenarios: Where E70B Rollers Perform Best
The E70B roller is commonly used in light-to-medium excavation projects such as utility trenching, landscaping, roadwork, and small-scale demolition. Its compact size and durable construction make it especially suited for confined urban jobsites or terrains where maneuverability is critical. Even in uneven and abrasive environments, it maintains track stability and load support.
Inspection and Quality Control Measures
Built for Consistency and Reliability
Before shipment, every roller undergoes:
- Hardness and case depth verification
- Seal performance test under pressure
- Dimensional fitment inspection
- Batch number tracking and final surface treatment
We ensure every unit that leaves our facility delivers on durability and reliability, supporting your fleet’s uptime and efficiency.
Maintenance Tips to Extend Roller Service Life
To maximize the lifespan of your E70B rollers:
- Keep the undercarriage free from mud and sand buildup.
- Inspect rollers periodically for leaking seals or abnormal wear.
- Replace worn rollers in pairs or as a full set for even wear.
- Avoid high-speed travel over rocky surfaces when possible.
Following these tips can reduce premature failures and ensure stable operation in demanding environments.
Why Choose Our E70B Track Rollers?
- OEM replacement quality and consistent sizing
- ISO9001-compliant production system
- Competitive factory-direct pricing
- Custom logo or packaging options for distributors
- Fast lead time with global export experience
We support both bulk orders and flexible MOQ for regional resellers.
FAQ – Caterpillar E70B Track Roller
Q1: Can I use this roller on other CAT mini excavators?
Yes, if the machine uses the same undercarriage frame or shares OEM part numbers, this roller will fit.
Q2: Do you support private labeling?
Yes, we can add your brand logo, part number, and customized packaging.
Q3: How soon can you ship after placing an order?
For regular stock, shipping is usually within 5–10 days. Large quantity orders may take more days.
Q4: Are sample orders available?
Yes, sample orders are welcome for quality evaluation.
SHIPPING & DELIVERY
At Kinton Parts, we ensure reliable, worldwide shipping of parts for excavators, bulldozers, and a full range of construction machines—safe, fast, and secure.
All products are securely packed using high-quality export cartons, reinforced wooden cases, or industry-standard palletized packaging to ensure maximum protection during transit and smooth handling during unloading.
Standard orders are typically shipped within 3–5 working days, while large or customized orders are usually dispatched within 7–20 days, depending on volume and production requirements.
We offer flexible global shipping options, including:
- International sea freight for cost-effective bulk transport
- Air freight for urgent orders
- Courier delivery (DHL, FedEx, UPS) for small-volume or sample shipments
Our logistics team manages every shipment carefully, providing real-time updates and tracking information until your order arrives safely at your destination.
Need assistance choosing the best shipping method for your location and timeline? Contact our team — we’ll help you plan a smooth delivery experience.
FAQ
Q: What are your main products?
A: We supply a full range of undercarriage and wear parts for excavators, bulldozers, and other heavy equipment. Our product line includes: Track rollers, carrier rollers, front idlers, sprockets, segments, track shoes, track chains, bolt and nuts, pins and bushings, bucket teeth and adaptors, filters, seal kits, swing bearing, and hydraulic cylinder—plus other essential replacement parts.
Q: Which countries do you export to?
A: Kinton Parts exports to over 60 countries worldwide, including:
USA, Canada, UK, Germany, Russia, UAE, Indonesia, Malaysia, Thailand, India, Pakistan, Bangladesh, Sri Lanka, South Africa, Colombia, Peru, and many others.
Q: Can I order a sample?
A: Yes, we accept trial orders. For parts in stock, samples can be shipped quickly. If you have technical drawings or existing samples, we also support customized production and mold development.
Q: How can I track my order after shipping?
A: Once your order is shipped, we will provide you with all necessary tracking information based on the shipping method. For express deliveries, you’ll receive a tracking number to follow the shipment online. For air or sea freight, we’ll send you the relevant documents such as the airway bill (AWB) or bill of lading (B/L), along with the packing list and commercial invoice to help with tracking and customs clearance.
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Trusted by professionals worldwide, Kinton Parts supplies premium-quality components for excavators, bulldozers, and more—with reliable quality you can count on.
