131.25.630 Technical Specifications
| Bearing Type | Three-Row Roller Slewing Bearings |
|---|---|
| Gear Type | External gear type |
| d (ID) | 496mm |
| D (OD) | 764mm |
| B (Width) | 148mm |
| Dynamic Load (Cr) | 3450kN |
| Static Load (Cor) | 451kN |
| Mass | 270Kg |
| Material | 50Mn integral forging, raceway quenched; GCr15 steel rollers (three independent raceways) |
| Cage | Segmented brass or steel cage (three independent raceways) |
| Clearance | C3 standard clearance (C4 optional for high vibration) |
| Precision | P0 standard precision (higher grades available) |
Bolt Hole Diameter
| D1 | 728 mm |
|---|---|
| D2 | 532 mm |
| dn1 dn2 | 18 |
| dm1 dm2 | M16 |
| L | 32 mm |
| n | 28 mm |
Structure dimensions
| n1 | 4 mm |
|---|---|
| D1 | mm |
| d1 | mm |
| H1 | 138 mm |
| h | 32 mm |
Gear
| b | 80 mm | Tooth width |
|---|---|---|
| m | 80 | Module |
| da | 808.8 mm | Tooth tip diameter of external gear ring |
| z | 132 | Number of teeth of external gear |
Product Description
131.25.630 is a three-row roller slewing bearing with external gear. It features three independent raceways: one for axial loads (upper), one for reverse axial loads (lower), and one for radial loads. Roller diameter is 25mm with 630mm raceway center circle diameter. This design provides the highest load capacity among all slewing bearing types. This model is driven by a pinion meshing with the external teeth. It measures 496mm inner diameter, 764mm outer diameter, and 148mm height. With exceptional rigidity and load capacity, it is widely used in extra-heavy applications such as large cranes, ship loaders, and tunnel boring machines.
Key Features
Three-row roller design, Independent axial and radial raceways, Highest load capacity among slewing bearings, Maximum rigidity and stability, P0 precision standard (P5/P6 available), C3 internal clearance, Segmented brass or steel cage, External gear for powerful pinion drive
Applications
Large tower cranes, Ship loaders/unloaders, Stacker reclaimers, Bucket wheel excavators, Heavy-duty mobile cranes
Related Products
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Is 131.25.630 suitable for my large crane or offshore application?
What customization options are available for 131.25.630?
How can I get a quotation for 131.25.630?
What is the lead time for 131.25.630 three-row bearings?
Are you a trading company or a factory?
Delivery & Service
Delivery Time
In-stock items: 3–5 working days; Bulk orders: 7–15 working days.
Shipping
Ocean Freight / Land Transport
Warranty
12-month warranty, extendable to 18 months.
Loading Port
Dalian Port or other nominated port
Packing
Export packing: tube + box + carton + wooden case
Order
Mixed models & small orders welcome
Image for reference only.
