Sprocket for Mid-Size CAT Excavator E70B
Durable replacement sprocket for Caterpillar E70B excavators. Made from high-strength forged steel with precision-machined teeth to ensure optimal wear resistance and power transmission. Ideal for tough working conditions and long service cycles.
| 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.
Engineered specifically for the Caterpillar E70B series, this sprocket ensures smooth and consistent power transfer from the final drive to the track chain. Its precise tooth profile and mounting hole pattern make it easy to install and highly stable during operation. Whether in compact construction sites or utility excavation, it provides steady track propulsion and minimizes vibration, making it ideal for contractors seeking efficient and durable undercarriage solutions.
Durable Materials with Advanced Heat Treatment
Manufactured from premium-grade alloy steel such as 40Mn2 or 35MnB, the sprocket delivers excellent strength and resistance to impact fatigue. The material undergoes precision forging followed by induction hardening on the tooth surface. This process significantly enhances wear life, with surface hardness reaching HRC 52–58, while maintaining a ductile core for absorbing shock loads. The result is a sprocket that retains its geometry and strength even after prolonged work in abrasive conditions.
Manufacturing Process Overview
Each stage is conducted under strict dimensional and quality standards to ensure consistent product output.
Every E302 sprocket is produced using our standardized workflow to ensure tight tolerances and consistent quality:
Tooth Rough Machining
The sprocket blank is machined on a CNC lathe or gear hobbing machine to form the basic tooth profile.
Inner Ring Installation & Precision Machining
The inner ring is inserted and the entire part is precisely machined to ensure concentricity and dimensional accuracy.
Drilling
Mounting and lubrication holes are drilled to meet the installation and functional requirements.
Tooth Grinding & Finishing
After heat treatment, the sprocket teeth are ground or polished to remove burrs and ensure smooth engagement.
Surface Cleaning
The sprocket undergoes surface cleaning, removing scale and residue, preparing it for surface treatment.
Painting & Final Coating
The sprocket is coated with durable industrial paint (available in various colors), providing corrosion resistance and a clean, professional appearance.
Fitment
This sprocket is directly compatible with:
Caterpillar E70B / E70 / E70BSR
Other modified models sharing similar undercarriage frame geometry
Please confirm exact part number before ordering. We offer fast-fit verification support.
Usage Scenarios – Built for Versatility
This sprocket is widely used in:
- Small-to-mid construction projects
- Urban development and utility trenching
- Light forestry or agricultural excavation
- Water conservancy and drainage works
Its robust teeth profile ensures uninterrupted work in abrasive or mixed soil conditions.
Quality Control for Long-Term Reliability
Every sprocket undergoes rigorous factory testing, including dimensional inspection, hardness verification, hole alignment checks, and paint durability assessment. This ensures low failure rates and high operational consistency, even under intense workloads. The sprocket's clean machining and tight tolerances help minimize abnormal wear on surrounding components.
OEM Undercarriage Parts for Caterpillar
| 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.
Maintenance Tips for Longer Service Life
To keep your sprocket performing at its best:
- Inspect teeth for abnormal wear or cracking every 500–800 working hours.
- Ensure track tension is within the recommended range to prevent tooth damage.
- Replace the sprocket and chain as a matched set to avoid uneven wear.
- Lubricate hardware connections to prevent rust and bolt loosening.
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.
