Excavator Bucket Bushing Manufacturer for Doosan CAT JCB Volvo
Heavy-duty bushings made from 40Cr alloy steel, designed for excavator boom, arm, and bucket joints. Features CNC oil groove machining, surface hardening, and quality testing. Available in standard sizes like Ø45×55mm, Ø50×60mm, Ø60×70mm, Ø65×80mm, and more. Ideal for multi-brand fitment.
| Material | 40Cr |
|---|
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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.
Excavator bushings are essential components used to support pivoting joints such as those in boom arms, buckets, and undercarriage links. They act as bearing sleeves, allowing smooth rotation while minimizing metal-to-metal friction. These bushings are widely used in excavator joints, linkage assemblies, swing arms, and track systems.
Thanks to standardized design and dimensional flexibility, our universal bushings can be used across multiple machine brands, including Komatsu, Caterpillar, Hitachi, Doosan, and others—provided the sizes match.
Material & Performance
We use premium 40Cr alloy steel, known for its excellent combination of hardness, toughness, and wear resistance. Key advantages include:
- High Surface Hardness (HRC 48-52) after heat treatment
- Good Toughness & Anti-crack Resistance
- Suitable for High-load, High-impact Applications
- Surface Machined Finish for Tight Tolerance Fit
Available Sizes
The following table lists our most commonly available sizes. Custom dimensions are available upon request.
| Inner Diameter (mm) | Outer Diameter (mm) | Length (mm) |
|---|---|---|
| 40 | 60 | 80 |
| 45 | 65 | 90 |
| 50 | 70 | 90 |
| 55 | 75 | 100 |
| 60 | 80 | 110 |
| 65 | 85 | 120 |
| 70 | 90 | 130 |
If your required size is not listed, contact us for custom machining.
Manufacturing Process Overview
Surface Machining & Finishing
The outer surface is finely ground and chamfered for easy press-fit installation and improved contact.
CNC Machining with Oil Grooves
High-speed CNC lathes cut precise oil grooves that help distribute grease during operation, minimizing internal friction.
Tempering Heat Treatment
Bushings are tempered at controlled temperatures to improve impact resistance and structural stability.
Hardness Inspection
Each batch undergoes random hardness sampling tests using Rockwell HRC testers to ensure reliable performance.
Application Areas
These bushings are commonly used in:
- Excavator bucket linkage pins
- Boom-arm pivot joints
- H-link and bucket rod ends
- Other wear-prone, load-bearing pin interfaces
Universal Fit & Custom Orders
Our bushings are compatible with most machines from:
Komatsu, Caterpillar, Hitachi, Doosan, Kobelco, Volvo, Hyundai, and others.
For OEM part replacements, please send us the:
- Required ID / OD / Length
- Machine model or brand
- Or an old sample/photo for reverse engineering
Custom orders can be completed in 7–15 days depending on quantity.
Why Choose Our Bushings?
- Reliable 40Cr Material: High-quality alloy steel ensures durability and strength.
- Precision & Customization: CNC machining, tight tolerances, and support for special size orders.
- Standardized Fit: Compatible with various machine brands as long as specs match.
- Fast Global Delivery: Stocked items ready to ship worldwide.
- One-Stop Undercarriage Supplier: From bushings to pins and seals, we provide full support for your maintenance and OEM needs.
Responsive Customer Service: Need help with sizing or drawings? We’re just one message away.
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.
