Cross roller slewing bearing
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| Bearings Name | New Model | Old Model: | ID(mm) | OD(mm) | Width(mm) | Cr(kN) | Cor(kN) | Grease Lubrication Speed(r/min) | Oil Lubrication Speed(r/min) | Weight(kg) |
| komatsu pc70-8 small sy215 ring cross roller slewing bearing | 012.40.800 | - | 678 | 922 | 100 | - | - | - | - | 220.000 |
| PC200-7 Mini Excavator Swing Bearing SY215 Slewing Ring Cross Roller Slewing Bearing | 020.30.1120 | - | 978 | 1262 | 124 | - | - | - | - | 340.000 |
Cross roller Slewing Bearing, also known as a crossed roller slewing bearing or crossed roller bearing, is a type of slewing bearing that utilizes crossed cylindrical rollers to support axial, radial, and moment loads. It consists of an inner ring, an outer ring, and the crossed roller set that provides rolling contact between the rings. Here are some key characteristics and considerations regarding Cross roller slewing bearings:
1. Design: Cross roller slewing bearings have a unique design that allows for high load capacity and rigidity while maintaining a compact structure. The crossed arrangement of the rollers enables them to bear loads in multiple directions.
2. Load Capacity: Cross roller slewing bearings are known for their high load-carrying capacity, especially in terms of radial and moment loads. The crossed roller arrangement distributes the load evenly, resulting in improved load capacity compared to other slewing bearing types.
3. Rigidity: Cross roller slewing bearings exhibit high rigidity, making them suitable for applications that require minimal deflection and precise positioning. The crossed roller design minimizes elastic deformation, providing excellent rotational accuracy and stability.
4. Low Friction and Smooth Operation: The roller-to-roller contact in a cross roller slewing bearing reduces friction, resulting in smooth and precise rotational movement. This feature is advantageous in applications that demand smooth operation and high positioning accuracy.
5. Compact Design: Cross roller slewing bearings have a compact design due to their crossed roller structure. This makes them suitable for applications with limited space constraints.
6. Applications: Cross roller slewing bearings are commonly used in various industries, including robotics, machine tools, industrial automation, medical equipment, and semiconductor manufacturing. They are particularly well-suited for applications that require high precision, low friction, and compact design.
7. Maintenance: Proper lubrication is essential for the optimal performance and longevity of cross roller slewing bearings. Regular maintenance, including lubrication and inspection, helps ensure smooth operation and extends the bearing's lifespan.
When considering cross roller slewing bearings, it is crucial to source them from reputable manufacturers that adhere to international quality standards. They should provide accurate load capacity information, customization options for dimensions and mounting requirements, and have a strong quality control process in place.
Consulting with the manufacturer or an engineer can help determine if a cross roller slewing bearing is the most suitable choice for your specific application, considering load requirements, precision needs, and spatial limitations.
