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ship crane slewing ring

Date: 2014-11-19 08:27
Key Specifications/Special Features of UWE ship slewing rings:
Inner diameter: 600- 4500 mm
Outer diameter: 700 - 5000 mm
Width: 56-300mm
Tooth processing module:M7-M25
Gear machining accuracy:<0.1
Max. Tapping diameter:M60
Gear optition: extenal gears,internal gears,no gears 
Rolling element: ball or rollers
Rolling element material: Chrome steel GCr15 or GCr15SiMn
Ring Material: 42CrMo, 50Mn, steel 45#
Seal: NBR
Normalizing hardness: 187HB-241HB
Quench & temper hardness: 229HB-269HB
Raceway hardness after quenching: 55HRC-62HRC
Sevice:OEM Service Offered/Design Service Offered/Buyer Label Offered
UWE ship crane slewing ring includes double row ball slewing ring, four-point contact ball slewing ring and three row roller slewing ring.Large size three row roller slewing ring is often selected for heavy duty deck crane, four-point contact ball or double row ball slewing ring are often selected for light duty deck cranes.Large shipboard crane with a three row roller slewing ring. The high load capacity and compact proportions of this type of slewing ring are ideally matched to the mast and base block proportions of the crane.Deep sea fishing vessels use ball slewing rings for shipboard cranes and net handling equipment.
UWE slewing rings are widely used in kinds of cranes, such as tower cranes, ship deck cranes, mobile cranes, railway cranes and so on.