133.28.900 Technical Specifications
| Bearing Type | Three-Row Roller Slewing Bearings |
|---|---|
| Gear Type | Internal gear type |
| d (ID) | 736mm |
| D (OD) | 1064mm |
| B (Width) | 182mm |
| Dynamic Load (Cr) | 6190kN |
| Static Load (Cor) | 808kN |
| Mass | 600Kg |
| 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 | 1020 mm |
|---|---|
| D2 | 780 mm |
| dn1 dn2 | 22 |
| dm1 dm2 | M20 |
| L | 40 mm |
| n | 36 mm |
Structure dimensions
| n1 | mm |
|---|---|
| D1 | mm |
| d1 | mm |
| H1 | 172 mm |
| h | 40 mm |
Gear
| b | 120 mm | Tooth width |
|---|---|---|
| m | 120 | Module |
| da | 691.2 mm | Tooth tip diameter of internal gear ring |
| z | 87 | Number of teeth of internal gear |
Product Description
133.28.900 is a three-row roller slewing bearing with internal 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 28mm with 900mm raceway center circle diameter. This design provides the highest load capacity among all slewing bearing types. This model is driven by a pinion inside the bearing ring. It measures 736mm inner diameter, 1064mm outer diameter, and 182mm 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, Internal gear for compact drive arrangement
Applications
Offshore platform cranes, Tunnel boring machines (TBM), Wind turbines (yaw & pitch), Dredgers, Rotary drills
Related Products
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Is 133.28.900 suitable for my large crane or offshore application?
What customization options are available for 133.28.900?
How can I get a quotation for 133.28.900?
What is the lead time for 133.28.900 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.
