012.75.4500 Technical Specifications
| Bearing Type | Single-row Four Point Contact Ball Slewing Bearings |
|---|---|
| Gear Type | External gear type |
| d (ID) | 4272mm |
| D (OD) | 4726mm |
| B (Width) | 174mm |
| Dynamic Load (Cr) | |
| Static Load (Cor) | 34100kN |
| Mass | 4000Kg |
| Material | GCr15 steel balls, 50Mn/42CrMo rings, raceway hardened and precision ground |
| Cage | Segmented brass or steel spacer blocks (optional per working condition) |
| Clearance | Standard axial-radial play, custom play available on request |
| Precision | P0 standard precision |
Bolt Hole Diameter
| D1 | 4636 mm |
|---|---|
| D2 | 4364 mm |
| dn1 dn2 | 45 |
| dm1 dm2 | M42 |
| L | 84 mm |
| n | 60 mm |
Structure dimensions
| n1 | 10 mm |
|---|---|
| D1 | 4502 mm |
| d1 | 4497 mm |
| H1 | 162 mm |
| h | 12 mm |
Gear
| b | 150 mm | Tooth width |
|---|---|---|
| m | 150 | Module |
| da | 4845 mm | Tooth tip diameter of external gear ring |
| z | 191 | Number of teeth of external gear |
Product Description
012.75.4500 is a single-row four-point-contact ball slewing bearing with an external gear. It features a 4500mm raceway center circle diameter. Its gothic-arch four-point-contact raceway enables the bearing to accommodate bidirectional axial loads, radial loads and tilting moments within a single bearing structure. This model is driven by a pinion meshing with the external teeth. The bearing measures 4272mm in bore diameter, 4726mm in outside diameter and 174mm in overall height. With stable rotation, comprehensive load capacity and easy maintenance, it is widely used in cranes, rotary platforms and heavy industrial equipment.
Key Features
Single-row four-point-contact ball design, Handles bidirectional axial, radial and tilting-moment loads, P0 precision standard, Segmented brass or steel spacer blocks, External gear for pinion drive, Compact cross-section
Applications
Tower cranes, Mobile cranes, Excavators, Aerial work platforms, Port machinery
Related Products
Service
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.
