EC Series Use Excavator Spare Parts Slewing Bearing fit Volvo
OEM-grade slewing bearing engineered for Volvo EC series excavators. Built from forged alloy steel and finished with CNC-machined gear profiles and raceways. Designed for reliable 360° upper carriage rotation under load. Suitable for models like EC210, EC240, EC290, EC360, and more. Delivered with anti-corrosion protection and export packaging.
| Material | 50Mn/42CrMo |
|---|---|
| Surface Hardness | HRC58-62 |
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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.
In Volvo excavators, the slewing bearing acts as the structural and mechanical link between the rotating upper structure and the stationary undercarriage. It ensures smooth, controlled rotation during digging, lifting, loading, and dumping.
Models like EC210 or EC360LC often operate in demanding terrain, where the swing bearing must handle:
- Axial thrust from lifting heavy loads
- Radial stress from offset digging angles
- Torsional torque during repetitive swing operations
A precision bearing improves fuel efficiency, reduces operator fatigue, and protects other rotating components like the swing motor and gearbox.
Manufacturing Process
Our slewing bearings are built through a multi-stage process that ensures both strength and precision.
Key Features & Technical Specifications
- Material: 42CrMo / 50Mn high-toughness alloy
- Tooth Type: Internal gear
- Heat Treatment: Gear teeth and raceways hardened to HRC 50–60
- Machining Tolerance: Within ±0.03mm on critical dimensions
- Seal Options: Double lip rubber seal or labyrinth-type for better sealing in muddy or dusty jobsites
- Lubrication: Pre-installed grease nipple ports, compatible with Volvo service kits
- Noise & Vibration: Low friction, low clearance design
Forged Ring Pre-Machining
Our process begins with high-quality alloy steel rings (typically 42CrMo), forged and polished for flatness and crack-free integrity. These rings form the structural base of both inner and outer components.
Gear Cutting on Inner Ring
The inner ring undergoes CNC gear milling to create a tooth profile that precisely matches Volvo swing pinions. After cutting, teeth are quenched and tempered to resist wear and deformation during high-load engagement.
Final Packing & Storage
After inspection, the slewing bearings are coated with anti-rust oil, wrapped in plastic, and packed in strong wooden crates. Labels include model code, part number, and batch information for easy identification and shipping control.
Model Compatibility – Volvo EC Series
This slewing bearing is suitable for a wide range of Volvo crawler excavators, including but not limited to:
| BRAND | MACHINERY MODEL NUMBER | |||||||
|---|---|---|---|---|---|---|---|---|
| VOLVO | EC55 | EC140 | EC160 | EC180 | EC210 | EC210B | EC210CL | EC240 |
| EC240B | EC240CL | EC290 | EC290B | EC290CL | EC300 | EC300B | EC300DL | |
| EC330 | EC360 | EC360B | EC380DL | EC460 | EC460B | EC480DL | EC700B | |
| EC700CL | EC950E | EC750E | EC480EL | EC380EL | EC300EL | EC250EL | EC220EL | |
| EC200D | EC210D | EC140D | EC160D | EC180D | EC250D | EC300D | EC380D | |
| EC480D | EC750D | EC950D | EC700D | EC290LC | EC240LC | EC210LC | EC360LC | |
| EC460LC | EC700LC | EC950LC | EC480LC | EC300LC | EC250LC | EC220LC | EC140LC | |
| EC210BLC | EC240BLC | EC290BLC | EC360BLC | EC460BLC | EC700BLC | EC750EL | EC380FL | |
| EC300FL | EC250FL | EC220FL | EC480FL | EC950FL | EC160EL | EC180EL | EC140EL | |
| EC140BLC | EC160BLC | EC180BLC | EC290EL | EC360EL | EC460EL | EC700EL | ||
Other Volvo D-series and E-series machines with compatible swing base dimensions
Not sure about the part number? Just send us your machine model, casting mark, or bearing drawing, and we’ll confirm fitment within 12 hours.
Quality Assurance
All Volvo swing bearings go through rigorous multi-stage testing:
- Raceways are hardness-tested and ultrasonically inspected
- Gear teeth undergo profile checking and backlash testing
- Bolt holes verified by jig for perfect alignment
- Full-rotation testing under load for noise and resistance
- Visual and dimensional inspection for every finished bearing
This ensures flawless performance, quiet operation, and long life even in the most demanding jobsites.
Packaging & Export Support
Every bearing is:
- Coated with anti-rust oil
- Wrapped in weather-resistant plastic
- Secured in wooden crates with shock-absorbent padding
- Labeled with model, specification, and production date
- OEM-labeled packaging or neutral cartons available for distributors.
Why Choose Us
We offer more than just components—we offer confidence in every rotation.
- OEM-standard forging and gear processing using high-grade alloy steel
- Fast fitment confirmation—simply send us your Doosan model or dimensions
- Global shipping & inventory support, with strong packaging and tracking
- On-site support and technical advice for swing bearing wear or failure
- Flexible MOQ, allowing you to order one unit or full container loads
We’ve supported Doosan dealers and repair shops worldwide with slewing bearings that deliver durability, precision, and reliable field performance.
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.
