When your Sumitomo excavator shows signs of rotational instability or excessive noise from the swing area, it’s likely time to replace the slew bearing. This critical component ensures smooth 360-degree rotation of the upper structure, and a worn-out bearing can lead to severe safety and operational issues.
At ZZ, we specialize in providing OEM-compatible slew bearing replacements for various Sumitomo excavator models, including SH120, SH210, SH300, SH350, and more. Our replacement slewing bearings are engineered to meet or exceed original specifications, ensuring a seamless fit and long service life.
Why Choose ZZ Slew Ring for Your Sumitomo Excavator?
- Exact Match: Bolt hole count, pitch diameter, and gear module all match Sumitomo specs
- Durability: Made from high-strength forged steel with induction-hardened raceways
- Gear Options: External, internal, or non-gear configuration available
- Pre-lubricated and sealed for easy installation
- Fast Quote with drawing confirmation or old bearing measurements
Our replacement bearings undergo strict quality control and testing. We support both standard replacements and custom-engineered alternatives, ensuring performance in heavy-duty construction, demolition, and mining applications.
Whether you’re a machine owner, repair shop, or distributor, our team provides full support from model confirmation to international shipping.
How to Identify Your Sumitomo Bearing
To ensure correct replacement, provide:
- Old bearing’s part number (if available)
- Outer/inner diameter and bolt hole data
- Gear type (external/internal/none)
- Machine model and serial number (optional)
We also welcome customers to send us the worn-out bearing’s photos or drawings for fast matching.
