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191.25.2500.990.41.1502 Tower Crane Slewing Ring
191.25.2500.990.41.1502 Tower crane slewing ring
Inner diameter: 2214 mm
Outer diameter: 2681 mm
Width: 147 mm
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
191.25.2500.990.41.1502 Tower crane slewing ring three row roller slewing bearing is mainly made up of in-up ring, in-down ring and outside ring. Three rings are separated so each row roller loads can be confirmed exactly and they can bear axial force, resultant torque and considerable radial force at the same time. This series has the maximum load capacity of these four series. It features compact in design.
This triple row roller slewing bearings are widely application in heavy machinery, such as bucket wheel excavator, wheeled crane, marine crane, ladle slewing mechanism and large-tonnage mobile crane.
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