NA12581SW/K38985 Inch Tapered Roller Bearing 20.637×45.237×24.211mm for Heavy‑Duty Unit

NA12581SW/K38985 is imperial single‑row separable tapered roller bearing assembly. It consists of NA12581SW cone(inner ring with rollers) and K38985 cup(outer ring). It supports combined radial and unidirectional axial loads, adjustable end‑play during installation, widely used for truck, agricultural and general heavy‑duty industrial equipment.

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• Separable cone‑cup construction for easy mounting and disassembly
• Carries combined radial plus one‑direction axial heavy loads
• Stamped steel cage keeps rollers aligned for stable running
• Open‑type design, allows onsite re‑lubrication maintenance
• Inch size standard, good interchangeability for aftermarket replacement

• Light‑medium duty truck wheel and transmission assemblies
• Agricultural machinery and off‑road power units
• Gear reduction boxes and heavy‑duty conveyor systems
• General industrial equipment requiring adjustable axial preload

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• 30 years professional bearing industry experience
• ISO certified strict quality inspection
• Flexible OEM & private label customization
• 3-5 days fast delivery for stocked bearings
• Full bearing series, universal interchangeable size
• Factory direct price & reliable after-sales service

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