78255X / 78571
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All Data Sourced from Official Brands
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Brand Alternative Bearings with Identical Specifications
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OEM and Flexible Order Quantities Supported
Specifications
Availability: 100 pcs
Brand: HSN/ TIMKEN/ OEM
Bearing Number: 78255X / 78571
Category: Tapered Roller Bearings
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Weight and Dimensions
Bore (d): 64.987 mm 2.5585 in
Outer (D): 144.983 mm 5.7080 in
Width (T): 36.000 mm 1.4173 in
Width (B): 32.923 mm 1.2962 in
Width (C): 23.007 mm 0.9058 in
Weight: 2.52 kg
Data from Timken (medias)
Dynamic Radial Load Rating – 1M Revs (C1): 203000 N
Dynamic Radial Load Rating – 90M Revs (C90) : 52600 N
Dynamic Axial Rating – 90M Revs (Ca90): 77900 N
Static Radial Load Rating (C0): 193000 N
e Factor: 0.87
K Factor: 0.67
Y Factor: 0.69
Product Properties
Precision: P0, P6, P5
Hardness: HRC58-62
Ring Material: GCr15, GCr15SiMn, 100CrMnSi6-4, etc.
Cage Material: Brass, Steel
Certificate: ISO9001:2015
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Downloads & Links
Timken Tapered Roller Bearings Guide
Product description
The 78255X / 78571 Timken tapered roller bearing features a single-row design consisting of an inner ring assembly (cone), an outer ring (cup), and a single row of tapered rollers. This configuration provides reliable radial and axial load support, high rigidity, and stable performance under demanding operating conditions. The separable cone and cup design allows convenient mounting and adjustment, while the bearing can be set to the required endplay or preload during assembly to optimize operating performance.
The 78255X / 78571 bearing is widely used in automotive applications, transmission systems, machine tool spindles, pumps, agricultural machinery, construction equipment, and other industrial applications. It is particularly suitable for applications requiring controlled bearing clearance or preload, accurate shaft positioning, and reliable support for combined radial and axial loads.
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