Patent ID: 8591116

Claim:
A roller, a spindle, a bearing interposed between the roller and the spindle in a bearing chamber, and a bearing-isolating seal sealing an annular space between the roller and the spindle, the roller rotating relative to the spindle; wherein the seal comprises a metal seal member and a non-metal seal member; wherein the metal seal member comprises: a roller-side radial wall, a spindle-side radial wall sized for attachment to the spindle, an intermediate radial wall located radially between the roller-side radial wall and the spindle-side radial wall, an axial wall from which the radial walls perpendicularly project in a bearing-side direction, a roller-side slot between the roller-side radial wall and the intermediate radial wall, and a spindle-side slot between the spindle-side radial wall and the intermediate radial wall; wherein the non-metal seal member comprises: a roller-side radial wall for attachment to the roller, a spindle-side radial wall, an axial wall from which the spindle-side radial wall and the roller-side radial wall perpendicularly project in an air-side direction, and a slot between the roller-side radial wall and the spindle-side radial wall; and wherein the intermediate radial wall of the metal seal member is situated within the slot of the non-metal seal member, and the spindle-side radial wall of the non-metal seal member is situated within the spindle-side slot of the metal seal member; and wherein the metal seal member has a notch and the non-metal sealing member has a tab axially captured in the notch, whereby the metal seal member and non-metal seal member will held together against axial separation.