NP815821 / NP359748 / NP761158
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All Data Sourced from Official Brands
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Brand Alternative Bearings with Identical Specifications
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Customized Bearing Solutions Based on Parameters
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OEM and Flexible Order Quantities Supported
Specifications
Availability: 100 PCS
Brand: HSN/ Timken/ OEM
Bearing Number: NP815821 / NP359748 / NP761158
Category: Tapered Roller Bearings
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Weight and Dimensions
Bore (d): 420 mm 16.5354 in
Outside Diameter (D): 620 mm 24.4094 in
Width Over Cups (T): 355 mm 13.9764 in
Width Over Cones (B): 355 mm 13.9764 in
Weight: 367 KG 808 lbs
Data from Timken (medias)
Dynamic Radial Load Rating (C1-4 row): 8280 KN 1860000 lbf
Dynamic Radial Load Rating (C90): 616 KN 139000 lbf
Dynamic Radial Load Rating (C90-4 row): 2140 KN 482000 lbf
Dynamic Axial Load Rating (Ca90): 424 KN 95300 lbf
e Factor: 0.40
Y1 Factor: 1.67
Y2 Factor: 2.49
K Factor: 1.45
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 Timken NP815821 / NP359748 / NP761158 four-row tapered roller bearing features a TQOW configuration consisting of two double cones, four rows of tapered rollers and cages, one cone spacer, two single cups, two cup spacers, and one double cup. This design provides high radial and axial load capacity, excellent rigidity, and reliable stability under heavy combined loads. Lubrication slots on the cone faces facilitate lubricant distribution, while the hardened cone spacer helps minimize face wear and supports long-term bearing performance.
The Timken NP815821 / NP359748 / NP761158 bearing is designed for rolling mill roll-neck applications, including work rolls, intermediate rolls, and backup rolls in flat product mills, as well as work rolls in long product mills. Its robust four-row construction supports heavy rolling loads, stable roll positioning, and consistent performance under demanding operating conditions. HSN provides replacement bearing solutions for United States steel mills, OEM equipment manufacturers, and industrial distributors seeking alternatives to Timken NP815821 / NP359748 / NP761158 bearings.
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