TimkenNP544520Tapered Roller Bearing Cone – 1.6244 in Bore, 1.0057 in Width, Imperial Design Units

Product Description

What this part is: Timken NP544520 inch tapered roller bearing cone. Cone only. A cone is the inner ring with its roller and cage assembly. Part Number: NP544520. Base Number: 544520. Series: 544. Bearing Type: Tapered roller bearing cone. Design Units: Imperial. Key dimensions: Bore / Shaft Size: 1.6244 in (41.26 mm). Overall Width: 1.0057 in (25.54 mm). Total Width: 1.0057 in (25.54 mm). Decoding the designation: NP — Timken engineering design number, carried as part of the full part number. 544520 — the base number identifying this cone within the Timken 544 series. Mounting data: Cone Frontface Backing Diameter (da): 1.89 in (48 mm). Cone Backface To Clear Radius: 0.05 in (1.3 mm). Those two figures set the shaft shoulder the cone seats against and the largest shaft fillet the cone corner will clear. What these specs mean in practice: A 1.6244 in bore runs on a 1-5/8 in nominal shaft seat. The 1.0057 in inner ring width fixes how much axial room the cone takes on that seat, which is what decides whether it drops into an existing taper roller housing without reworking the shoulder. Tapered roller geometry carries radial and one-direction thrust load through the same roller path, so a cone of this width and bore is normally mounted opposite a second cone to locate a shaft in both directions. Quantity and configuration: Unit Quantity: 1 Pc. One cone assembly per listing. Interchange guidance: MPN Variants: NP544520, NP-544520, NP 544520, 544520. Industry Terms: taper bearing cone, tapered roller cone, inner ring and roller assembly, taper roller inner race.