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)
crane Slewing bearing, Slew drive, Slewing bearing kaydon, skf, liebherr	012.30.500.03	012.30.500.03	398	602	80	-	-	-	-	75.8

SKF is a well-known manufacturer of various types of bearings, including Slewing Bearings. Slewing bearings, also known as turntable bearings or slewing rings, are large bearings designed to handle axial loads, radial loads, and tilting moments simultaneously. They are commonly used in applications that require rotational movement, such as cranes, excavators, wind turbines, and industrial machinery.

Here are some key features and characteristics of skf slewing bearings:

1. Design and Construction:
   - SKF slewing bearings are available in various designs, including Single-row ball slewing bearings, Double-row ball slewing bearings, and crossed roller slewing bearings.
   - They are typically composed of an inner ring, an outer ring, rolling elements (balls or rollers), and a cage or separator to keep the rolling elements separated and evenly distributed.
   - The design of SKF slewing bearings provides high load-carrying capacity and stiffness while allowing smooth rotational movement.

2. Size and Dimensions:
   - SKF slewing bearings come in a wide range of sizes and dimensions to accommodate different application requirements.
   - The size can vary from small bearings used in light-duty applications to large bearings capable of handling heavy loads.

3. Load Capacity and Performance:
   - SKF slewing bearings are designed to handle both axial and radial loads simultaneously.
   - They can also withstand tilting moments, which occur when a load is applied off-center or at an angle.
   - SKF slewing bearings are engineered to provide high load-carrying capacity, precision, and reliability in demanding operating conditions.

4. Lubrication and Sealing:
   - Proper lubrication is crucial for the performance and longevity of SKF slewing bearings.
   - They are typically supplied with grease or oil lubrication systems to reduce friction and prevent wear.
   - Additionally, SKF slewing bearings can be equipped with sealing arrangements to protect against contamination and retain lubrication.

5. Customization and Support:
   - SKF offers a wide range of slewing bearing solutions and can provide customized designs to meet specific application requirements.
   - SKF's technical support and engineering expertise help customers select the right slewing bearing for their applications and provide assistance with installation, maintenance, and troubleshooting.