Premium Replacement Turntable Bearing for Zoomlion Excavators – ZZ Manufacturing
Product Overview
As a professional slewing bearing manufacturer, ZZ understands that the turntable bearing (also known as a slewing ring) is the critical pivot point for your heavy machinery's stability and precision. We specialize in manufacturing high-durability replacement bearings specifically engineered to match the rigorous standards of Zoomlion excavators.
Whether you are maintaining a Zoomlion ZD220 bulldozer or a large-tonnage excavator from the G-series, ZZ provides OEM-equivalent solutions that ensure seamless fitment and extended service life in demanding construction environments.
Performance & Quality
At ZZ, we do not just manufacture bearings; we engineer stability. Our Zoomlion-compatible turntable bearings are designed to withstand the high-impact loads and continuous rotation cycles typical of earthmoving machinery.
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Superior Load Capacity: Engineered to handle complex simultaneous loads—axial, radial, and tilting moments—with high precision.
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Heavy-Duty Durability: Constructed from high-grade alloy steel (e.g., 42CrMo, 50Mn), our bearings offer exceptional resistance to wear and deformation.
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Precision Rotation: Optimized raceway hardening and precision grinding ensure smooth, low-friction rotation, directly improving the excavator's operational efficiency.
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Sealed for Protection: Multi-lip sealing systems effectively prevent the ingress of dust, mud, and water, which are common failure points in mining and construction sites.
Technical Specifications
We manufacture a wide range of specifications to match various Zoomlion models. Below are the common parameters for our excavator slewing rings:
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Feature
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Specification Detail
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Product Type
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Double Row Ball / Crossed Roller / Three Row Roller
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Material
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High-Carbon Chromium Steel / Alloy Steel
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Teeth Type
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External Teeth, Internal Teeth, or Gearless
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Hardness
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Raceway hardness up to 55-62 HRC
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Sealing
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Rubber seals (Standard) / Labyrinth seals (Extreme conditions)
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Lubrication
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Pre-greased with high-performance lithium-based grease
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Bolt Hole Pattern
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Custom drilled to match Zoomlion OEM blueprints
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Certifications & Standards
Quality is the cornerstone of ZZ Manufacturing. Our production facilities adhere to strict international quality management systems.
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ISO 9001:2015 Certified: Ensuring consistent quality in every unit produced.
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ISO 14001: Environmentally responsible manufacturing processes.
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Material Traceability: Full certification of raw materials (EN 10204 3.1) to guarantee steel integrity.
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OEM Compatibility: Our products are manufactured to strictly meet or exceed the original equipment manufacturer (OEM) specifications for Zoomlion machinery.
ZZ Service & Support
We know that downtime costs money. ZZ offers a service model built on speed and technical expertise.
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Direct Manufacturer Supply: No middlemen, ensuring competitive pricing and direct quality control.
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Rapid Logistics: We maintain stock for popular Zoomlion models and offer expedited global shipping.
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Technical Consultation: Our engineers are available to help you identify the correct bearing model based on your machine's serial number or damaged part dimensions.
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Customization: Beyond standard replacements, we can customize sealing types and gear modules for specific project needs.
Applications
Our turntable bearings are widely used in a variety of heavy machinery, specifically tailored for the Zoomlion product line:
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Hydraulic Excavators: Zoomlion ZE series (e.g., ZE210, ZE370, ZE460).
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Crawler Bulldozers: Zoomlion ZD series (e.g., ZD220-3).
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Mining Equipment: Large-scale earthmoving machinery operating in high-abrasion environments.
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Construction Cranes: Mobile and crawler cranes requiring high moment load capacity.
FAQ
Q1: How do I identify the correct turntable bearing for my Zoomlion excavator?
A: You can check the nameplate on the existing bearing (if legible) or measure the bolt hole circle diameter (PCD), the number of holes, and the gear tooth count. Our team can also match it via your excavator's model and serial number.
Q2: Do you offer a warranty on these bearings?
A: Yes, ZZ stands behind our manufacturing quality. We typically offer a 12-month warranty or a specific number of working hours, covering defects in material and workmanship.
Q3: Can this bearing replace the original Zoomlion part directly?
A: Yes. Our bearings are designed as "drop-in" replacements. The mounting holes and gear alignment are machined to match the OEM specifications perfectly.
Q4: What is the lead time for shipping?
A: For standard models compatible with Zoomlion excavators, we often have stock available for immediate dispatch. Custom orders typically take 15-30 days depending on quantity.
