The Timken Company 353-D Double Outer Cup Imperial

Description:

The Timken 353-D Double Tapered Cup is a precision double outer race designed for use with compatible Timken tapered roller bearing cones in TDO (Tapered Double Outer) bearing assemblies. It is commonly installed in industrial gearboxes, rolling mills, mining equipment, conveyors, heavy machinery, and other applications requiring high radial and axial load capacity with excellent rigidity. Maintenance technicians, OEMs, and equipment rebuilders use this double cup for bearing replacement, machinery overhauls, and new equipment assemblies requiring reliable shaft support.

Applications:

The Timken 353-D Double Tapered Cup is used in heavy-duty industrial gearboxes, steel processing equipment, mining machinery, material handling systems, paper mills, and other rotating equipment utilizing Timken TDO bearing assemblies. It is designed to mate with compatible Timken cones including 358X, 359A, and 355X to provide high-capacity support for combined radial and thrust loads.

Technical Specifications:

• Manufacturer: Timken
• Model / Part number: 353-D (353D)
• Product type: Double tapered roller bearing cup (outer race)
• Bearing configuration: TDO (Tapered Double Outer)
• Cup outside diameter: 3.5480 in (90.119 mm)
• Cup width (C): 1.7500 in (44.450 mm)
• Weight: Approximately 3.65 lb (1.657 kg)
• Design unit: Imperial
• Compatible cone part numbers: 358X, 359A, 355X (application dependent)
• Mounting: Press-fit housing installation
• Application environment: Heavy-duty industrial power transmission and rotating equipment

Common Replacements:

• Timken 353DC
• Timken 358X/353D
• Timken 359A/353D