Slewing Ring Slewing Bearing Slewing Gear

• Customization: Available
• Standard or Nonstandard: Standard
• Roller Type: Straight Raceway
• Model NO.: SF12-78
• Material: 42CrMo
• Type: External Gear
• Holding Torque: 43kn.M
• Tilting Moment Torque: 54.3kn.M
• Output Torque: 15.6kn.M
• Gear Ratio: 78:1
• Static Axial Load: 475kn.M
• Static Radial Laod: 190kn.M
• Dynamic Axial Load: 114kn.M
• Dynamic Radial Load: 100kn.M
• Inner Dia.: 265mm
• Outer Dia.: 450mm
• Transport Package: Standard Exporting Package
• Specification: SF12-2
• Trademark: Coresun Drive
• Origin: Changzhou
• HS Code: 8482109090
• Production Capacity: 6000PCS/Month

Product Description

Coresun Drive-a professional manufacturer of all type of slewing bearings,heavy and large slewing bearings, special used bearings and non-standard bearings, integrating research, manufacture and sale together.
 

Model	SF12	Place of Origin	Changzhou,China
Brand	Coresun Drive	Type	Single Ball Ring
Material	42CrMo	Output Torque	15.6KN.m
Tilting Moment Torque	135.6KN.m	Holding Torque	43K N.m
Static Axial Rating	475KN	Static Radial Rating	190KN
Dynamic Axial Rating	114KN	Dynamic Radial Rating	100KN
Gear Ratio	78:1	Ourter Dia.	450mm

single row four point contact ball slewing rings is composed of two seat rings, which design in compact structure and light weight, steel ball contact with the circular raceway at four points; it can bear the axial force, radial force and the tilting moment at the same time. Coresun drive Single-row four point contact ball ring has the features of compact in design, and light in weight. The balls roll on the circular race at four points, so it can undertake the axial force, radial force and tipping moment at the same time. This series of four point contact ball bearings are suitable in many engineering machinery, such as rotary conveyor welding operation machine, small cranes, small and medium-sized excavators,slewing conveyer, welding manipulator, light and medium duty crane, and other construction machinery.
Three types of this kind of single row four point contact ball slewing bearing:
A. Without gear bearing (non tooth)
B. External gear bearing (external tooth)
C. Internal gear bearing (internal tooth)

double row different diameter ball slewing bearing is mainly made up of in-up ring, in-down ring and outside ring, so balls and spacers can be directly discharged into the upper and lower raceway. According to stress conditions, bearings are arranged to two rows of balls of different diameter. This assembly is very convenient. Angle of both upper and lower raceway is 90°so bearings can bear large axial force and resultant torque. Bearing needs special design when radial force is 0.1 times larger than the axial force. Large in sizes and features compact in design, bearings are particularly application in handling equipments requiring medium above diameter, such as tower crane and mobile crane.

single row cross roller slewing ring is mainly made up of inside and outside rings. It features compact in design, light in weight, small in assembling clearance, and high in installing precision. As the rollers are crossed arranged by 1:1, it is suitable for high precision mounting and capable to bear axial force, radial force and resultant torque simultaneously. This series single row crossed roller slewing bearing have widely application in lift transport aircraft, construction machinery, and marine crane products.


Production Photo and Application





Coresun Drive makes the tilting moment torque testing to ensure the quality and safety factor on slewing bearing bearing.
Quality is the foundation of enterprise development.



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