Description:The labyrinth acts as a seal retainer between the wheel spindle and the axle housing.Attributes:• Steel• Zinc Nickel Coated• Outside Diameter: 127.5 mm (5.019 in)• Inside Diameter: 61.84 mm (2.4346 in)• Height: 17.04 mm (0.670 in)Application:Consult your owner's manual or contact your local Cat Dealer for more information.