The Timken Company 18690-90060 Tapered Roller Bearing

Description:

The Timken 18690-90060 precision tapered roller bearing assembly is used to provide high-accuracy rotational support while carrying combined radial and axial loads in demanding industrial applications. Commonly installed in machine tools, precision gearboxes, rolling mills, spindle assemblies, and other heavy industrial equipment where accurate shaft positioning and long bearing life are essential. Maintenance teams, OEMs, and machine rebuilders use this precision bearing assembly for equipment overhauls, spindle repairs, precision retrofits, and replacement of worn matched bearing sets.

Applications:

The Timken 18690-90060 precision tapered roller bearing assembly is commonly used in precision machine tools, industrial gear drives, rolling mills, paper processing equipment, and other rotating machinery requiring tight running accuracy and reliable load handling. This factory-matched assembly consists of the Timken 18690 bearing cone and Timken 18620 bearing cup manufactured to precision tolerances for high-performance applications.

Technical Specifications:

• Manufacturer: Timken
• Model / Part number: 18690-90060
• Product type: Precision tapered roller bearing assembly
• Bearing type: Single-row precision tapered roller bearing (TS design)
• Bearing cone: Timken 18690
• Bearing cup: Timken 18620
• Bore diameter: 1.8125 in (46.038 mm)
• Outside diameter: 3.1250 in (79.375 mm)
• Overall bearing width: 0.6875 in (17.463 mm)
• Cone width: 0.6875 in (17.463 mm)
• Cup width: 0.5313 in (13.495 mm)
• Design units: Imperial
• Dynamic radial load rating (C1): 11,700 lbf (52,000 N)
• Static radial load rating (C0): 13,800 lbf (61,300 N)
• Dynamic axial load rating (Ca90): 1,940 lbf (8,630 N)
• Cage material: Pressed steel
• Mounting: Single-row precision tapered roller bearing assembly
• Application environment: Precision industrial machinery, gearboxes, spindles, and power transmission equipment

Common Replacements:

• SKF 18690/18620 precision tapered roller bearing
• NTN 18690/18620 precision tapered roller bearing
• KOYO 18690/18620 precision tapered roller bearing