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
Crane Slewing Bearing Crane Turntable Bearing Large Turntable Bearings	012.45.1800	-	1660	1940	110	-	-	-	-	610.000
XCMG truck crane slewing bearing	013.75.4500	-	4272	4726	174	-	-	-	-	4000.000
Deck Crane Slewing Bearings	013.60.2000	-	1825	2178	144	-	-	-	-	1100.000
Ship Crane Slewing Bearing	010.40.1120	-	998	1242	100	-	-	-	-	300.000
External Gear Slewing Bearing Tower Crane Slewing Bearings	010.40.1000	-	878	1122	100	-	-	-	-	270.000
China crane slewing bearing manufacturer	014.30.710	-	608	812	80	-	-	-	-	120.000
Slewing Ring For Excavator China Manufacturer Crane Slewing Bearing	011.45.1400	-	1260	1540	110	-	-	-	-	480.000

crane Slewing Bearing, also known as a crane slew ring or crane turntable bearing, is a large bearing that allows the crane to rotate or slew. It is usually located at the base of the crane and supports the load-bearing structure of the crane. The crane slewing bearing enables the crane to rotate smoothly and with minimal friction, allowing it to lift and move heavy loads in various directions. It is a critical component in the overall function and stability of a crane. The size and capacity of a crane slewing bearing can vary depending on the size and type of the crane.

Crane slewing bearings are an essential component of cranes, enabling them to rotate and lift heavy loads with ease. These bearings are designed to withstand the weight and pressure of the crane's movements, ensuring smooth and efficient operation.

There are several types of crane slewing bearings available, including ball bearings, roller bearings, and crossed roller bearings. Each type has its own unique advantages and disadvantages, depending on the specific application and requirements of the crane.

Ball bearings are the most common type of crane slewing bearing, offering a high load capacity and low friction. They are ideal for applications where precise positioning is not required, such as in truck-mounted cranes or mobile cranes.

Roller bearings, on the other hand, are better suited for applications where heavy loads and precise positioning are required, such as in tower cranes or ship-to-shore cranes. They offer a higher load capacity than ball bearings and are more durable, but they also have a higher friction coefficient.

Crossed roller bearings are a hybrid between ball and roller bearings, offering the best of both worlds. They have a high load capacity and low friction, making them ideal for applications where both precision and heavy loads are required.

Regardless of the type of crane slewing bearing used, it is important to ensure that it is properly installed and maintained. Regular inspection and lubrication can help extend the lifespan of the bearing and prevent costly breakdowns or repairs.

In conclusion, crane slewing bearings are a crucial component of cranes, enabling them to lift and rotate heavy loads with ease. Choosing the right type of bearing for the specific application can help ensure smooth and efficient operation, while proper installation and maintenance can help extend the lifespan of the bearing.