Cross Roller Crane Bearing XRSI14.644 Slewing Bearing with Inner Gear & External Teeth
The XRSI14.644 Slewing Bearing with Inner Gear & External Teeth is a high precision cross roller slewing bearing designed for crane machinery, rotary platforms, CNC systems, and industrial automation equipment. This dual-gear slewing bearing integrates both internal and external teeth for flexible drive configurations and efficient torque transmission.
Built with a cross cylindrical roller structure, it supports radial, axial, and moment loads simultaneously, making it ideal for crane slewing systems, heavy-duty turntables, and precision machinery applications.
This inner gear and external teeth slewing bearing offers high rigidity, stable rotation, and long service life, widely used in construction machinery, crane equipment, automation systems, and CNC machine parts.
- Dual Gear Design (Inner & External Teeth): Flexible drive options for complex systems.
- Cross Cylindrical Roller Structure: Ensures high precision and smooth rotation.
- High Load Capacity: Handles combined radial, axial, and moment loads.
- Crane Application Optimized: Suitable for heavy-duty slewing systems.
- Stable & Rigid Structure: Maintains accuracy under load.
- Durable Construction: Heat-treated bearing steel for extended service life.
| Parameter | Specification |
|---|---|
| Model | XRSI14.644 |
| Type | Slewing Bearing (Inner Gear & External Teeth) |
| Structure | Crossed Cylindrical Rollers |
| Material | Bearing Steel |
| Accuracy Class | P5 / P4 optional |
| Preload | Custom |
| Application | Crane Machinery, CNC Systems, Rotary Platforms |
- Crane Machinery – Heavy-duty slewing and lifting systems.
- Rotary Platforms – Flexible drive and precise rotation.
- CNC Systems – High precision motion control.
- Industrial Automation – Stable and efficient operation
| INA | Weight (Kg) | Da | di | Di | da | La | Li | ni/na | A | B | C | D | Preload | do | m | z |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| XSI140414N | 31 | 484 | 325 | 415 | 411 | 460 | 375 | 24 | 0.04 | 0.04 | 0.06 | 0.06 | 0.01-0.03 | 495 | 5 | 99 |
| XSI140544N | 43 | 614 | 444 | 545 | 541 | 590 | 505 | 32 | 0.04 | 0.04 | 0.07 | 0.07 | 0.01-0.03 | 630 | 6 | 105 |
| XSI140644N | 50 | 714 | 546 | 645 | 641 | 690 | 605 | 36 | 0.05 | 0.05 | 0.08 | 0.08 | 0.01-0.04 | 732 | 6 | 122 |
| XSI140744N | 58 | 814 | 648 | 745 | 741 | 790 | 705 | 40 | 0.05 | 0.05 | 0.09 | 0.08 | 0.01-0.04 | 828 | 6 | 138 |
| XSI140844N | 69 | 914 | 736 | 845 | 841 | 890 | 805 | 40 | 0.06 | 0.06 | 0.09 | 0.09 | 0.01-0.04 | 936 | 8 | 117 |
| XSI140944N | 76 | 1014 | 840 | 945 | 941 | 990 | 905 | 44 | 0.06 | 0.06 | 0.11 | 0.09 | 0.01-0.05 | 1032 | 8 | 129 |
| XSI141094N | 91 | 1164 | 984 | 1095 | 1091 | 1140 | 1055 | 48 | 0.07 | 0.07 | 0.11 | 0.11 | 0.01-0.05 | 1184 | 8 | 148 |
- Dual Gear Slewing Bearing Expertise
- High Precision Cross Roller Technology
- Reliable Performance for Crane Systems
- Customization & Global Delivery Support
Q1: What is special about XRSI14.644?
A1: It features both inner gear and external teeth, allowing flexible drive configurations.
Q2: Is it suitable for crane machinery?
A2: Yes, it is designed for heavy-duty crane and construction equipment.
Q3: Do you support customization?
A3: Yes, customization is available for gear design, preload, and precision class.
Upgrade your system with XRSI14.644 Dual Gear Slewing Bearing.
Contact GQZ Bearing today for pricing, samples, or technical consultation!
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