Kobelco Excavator slewing bearings

Kobelco Excavator Slewing Bearing – Direct Replacement Solutions for SK Series Equipment

When operating a Kobelco excavator—from an SK30 on urban jobsites to an SK850 in mining—reliable rotation is essential. At Luoyang Heng Guan Bearing Technology, we manufacture direct-fit Kobelco Excavator Slewing Bearings for models from 1.5 to 90 tonnes. Fully compatible with OEM mounting specifications, our bearings provide easy installation, dependable load capacity, precise rotation, and long service life—without the OEM price tag.

Need urgent delivery or custom specs? Contact our engineering team: mia@hgb-bearing.com

How Slewing Bearings Function in Kobelco Excavators?

The slewing bearing interfacing the excavator’s upper structure to the undercarriage, supporting center, extended, and tilting loads in the midst of digging, lifting, and rotation.

For Kobelco excavators, it ensures smooth 360° turn underneath nonstop stack though standing up to shock impacts. Hardened raceways and exactness rolling components pass on loads evenhandedly, reducing wear and extending service life.

Technical Parameters

Kobelco Model Product Parameters

Available Structural Types for Different Applications

We offer two essential courses of action facilitated to your working requirements:

Single-Row Four-Point Contact Ball Bearing

This compact four-point contact ball bearing arrange offers smooth, low-friction turn, making it culminate for common advancement, organizing, and light-duty excavators. It gives calmer operation and correct swing performance.

Single-Row Cross-Roller and Three-Row Roller Bearing

For mining, quarrying, demolition, and other heavy-duty applications, we offer roller-based slewing bearings with higher stack capacity and stagger resistance. Cross-roller plans deliver tall unyielding nature in a compact appraise, though three-row plans separated center and winding loads for asking commitment cycles.

Manufacturing Process and Material Selection

Our items utilize manufactured 50Mn or 42CrMo alloy steel rings for tall quality and affect resistance.

Raceways areinduction hardened to HRC 55–62, making a wear-resistant surface with a intense center for shock absorption. Precision grinding at that point guarantees exact geometry, smooth operation, and long benefit life.

Model Coverage and Stock Availability

We maintain inventory and manufacturing capability across the complete Kobelco range:

Mini and Small Excavators:

SK30 | SK35 | SK55 | SK60 | SK75

Medium Construction Class:

SK130 | SK140 | SK200 | SK210 | SK220 | SK250 | SK260 | SK270

Large and Mining Class:

SK330 | SK350 | SK380 | SK460 | SK480 | SK495 | SK500 | SK850

Common models are available from stock. For older or uncommon machines, we offer remanufacturing services—simply provide a worn bearing or dimensional data, and we’ll produce an exact replacement.

Why Choose Heng Guan Bearing for Your Kobelco Equipment?

Manufacturing Range

We make slewing bearings from 50 mm to 10,000 mm in distance across utilizing CNC machines, gear hobbing, induction hardening, and grinding equipment, guaranteeing full control over the generation process.

Customization for Non-Standard Requirements

We give custom arrangements for extraordinary tooth plans, fixing frameworks, and mounting measurements. We too make huge gears, ring gears, Shafts, and couplings to bolster total get together needs.

Quality Control

We are ISO9001 certified and use advanced inspection equipment throughout production. Every Kobelco excavator slewing bearing undergoes dimensional inspection and includes full material traceability.

Global Supply Experience

Our bearings are used in over 50 countries, including South Africa, the United States, Germany, Australia, Russia, Southeast Asia, and the Middle East. We provide reliable export support, documentation, and logistics services for international customers.

Frequently Asked Questions

Q:How do I know which bearing fits my Kobelco model?

A:Provide your excavator model number (e.g., SK210) or the bearing part number stamped on your existing bearing. We'll affirm the adjust substitution and give dimensional drawings for verification.

Q:Can you supply heading for more seasoned Kobelco models no longer in production?

A:Yes. Send us estimations or photographs of your current bearing—including bolt hole pattern, inner/outer distances across, and stature. We'll fabricate a unused bearing to coordinate your specifications.

Q:What's the ordinary lead time?

A:Common models dispatch inside one week. Custom or non-standard Bearing ordinarily require 3-4 weeks depending on specifications and current generation schedule.

Q:Do you give installation support?

A:We supply establishment drawings and torque details with each bearing. For complex establishments or specialized questions, our designing group is accessible for consultation.

Q:What guarantee do you offer?

A:We stand behind our fabricating quality. Contact Us straightforwardly to talk about guarantee terms based on your application and working conditions.

Contact Us for Technical Support

Whether you need an immediate Kobelco Excavator slewing bearing replacement or you're planning fleet maintenance, our team can help you select the right solution.

Email: mia@hgb-bearing.com