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(888) 312-8812 Login SignupThe Hendrickson Hub Cap seals the wheel hub opening to contain lubricant while allowing inspection of internal conditions. As the wheel rotates, oil circulates within the hub cavity, coating bearings and internal surfaces. The hub cap keeps this lubricant enclosed while preventing contaminants from entering the hub. It remains fixed to the hub face while the wheel assembly turns around it. Visual access through the cap allows fluid level checks without disassembly. This sealing action continues throughout vehicle movement and braking cycles. The Hendrickson S-35943-2 provides hub sealing for both super single and dual wheel configurations.
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