9974DW / 9920 / 9920D
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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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Fast Quotation Response
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OEM and Flexible Order Quantities Supported
Specifications
Availability: 100 PCS
Brand: HSN/ Timken/ OEM
Bearing Number: 9974DW / 9920 / 9920D
Category: Tapered Roller Bearings
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Weight and Dimensions
Bore (d): 216.103 mm 8.5080 in
Outside Diameter (D): 330.200 mm 13.0000 in
Width Over Cups (T): 269.875 mm 10.6250 in
Width Over Cones (B): 263.525 mm 10.3750 in
Weight: 83.0 KG 182 lbs
Data from Timken (medias)
Dynamic Radial Load Rating (C1-4 row): 2380 KN 536000 lbf
Dynamic Radial Load Rating (C90): 178 KN 39900 lbf
Dynamic Radial Load Rating (C90-4 row): 618 KN 139000 lbf
Dynamic Axial Load Rating (Ca90): 168 KN 37700 lbf
e Factor: 0.55
Y1 Factor: 1.22
Y2 Factor: 1.82
K Factor: 1.06
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 9974DW / 9920 / 9920D 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 9974DW / 9920 / 9920D 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 9974DW / 9920 / 9920D bearings.
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