MERYDOM PRODUCT
Three Row Roller Slewing Bearing
Heavy-duty roller structure for large load and large diameter applications.
Three Row Roller Slewing BearingsThree-row rollerExternal Gear42CrMo / project-specific alloy steel
Product Overview
Three-row roller slewing bearings are used for heavy-duty equipment where axial, radial, and tilting moment loads are high. MERYDOM supports drawing-based manufacturing and project-specific quality documentation.
| Structure | Three-row roller |
|---|---|
| Gear type | External Gear |
| Material | 42CrMo / project-specific alloy steel |
| Outer diameter range | OD 1000–4000 mm by project review |
| Precision / tolerance | According to drawing, load and equipment requirements |
| Heat treatment | Raceway induction hardening; gear hardening where required |
| Surface treatment | Anti-rust oil, heavy-duty painting, zinc layer + coating by project |
| Lead time | 45–75 days depending on size, material and inspection requirements |
| Drawing requirements | Complete drawing, load cases, gear data, bolt data, installation condition, and document requirements |
| Rolling element | Three rows of rollers |
| Load capacity | Heavy-duty axial, radial and moment load |
| Typical diameter | Large and project-specific |
| Documentation | MTC, hardness, dimension and final inspection records by request |
Technical Features
- High load support for large equipment
- Project-specific manufacturing route
- Suitable for demanding OEM and replacement projects
- Traceability and inspection reports can be prepared according to customer requirements
Typical Applications
Heavy cranes, port equipment, mining machinery, large industrial equipment, and special rotating platforms.
Quality Control Points
- Material traceability
- Heat treatment record review
- Large-diameter machining inspection
- Final report and packing verification
Engineering Notes
This product record is a structured starting point. Add project photos, drawing notes, dimensions, tolerance requirements, and customer-specific engineering notes here.
SEND YOUR DRAWING
Need a slewing bearing quotation?
Upload your drawing, part number, sample data, or application requirement. MERYDOM will review manufacturability and provide a quotation.