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Bower792D/797/X1S797Two-Row TDO Tapered Roller Bearing Assembly 5.118″ Bore 8-1/8″ OD With Cone Spacer

Condition: New – Open box
Condition Note: Made In USA, New Old Stock, Stained (2) 797 (1) 792 D (1) X1S-797

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Complete two-row TDO tapered roller bearing assembly: two 797 cones, one 792D double cup and one X1S-797 cone spacer. Bore 5.118 in, outside diameter 8-1/8 in. Sold as 1 Pc (four-piece assembly).

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$757.32

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Specifications

Key Specifications

MFR / BrandBower
MPN792D/797/X1S797
Model792-D 797 X1S797
Bearing TypeTapered Roller Bearing Cone

Technical Specifications

Base Number792D/797/X1S-797
Industry TermsTDO assembly, double cup assembly, two-row taper bearing, cone spacer set
Common Misspellings792-D/797, X1S 797, 797D/792
Application TypesRolling mill roll necks, large gear drives, heavy industrial shafting
Bore Shaft Size5.118 in (130.00 mm)
Mpn Variants792D/797/X1S797, 792D 797 X1S-797, 797/792D, 792D, 797, X1S-797, X1S797
Compatible With Replaces797 cones seat in the 792D double cup, spaced by X1S-797
Arrangement ConfigurationTDO two-row: 2x 797 cone, 1x 792D double cup, 1x X1S-797 cone spacer
Number Of Rows2
Design UnitsInch
Bearing MaterialCase-carburised bearing steel
Part Number792D/797/X1S797

Cross-References

Cross Reference 1Timken 797/792D
Cross Reference 2Federal-Mogul Bower 797/792D
Seller Part Number: BE4#SWSN4P

Product Description

What this part is

A Bower two-row TDO tapered roller bearing assembly — two 797 cones, one 792D double cup and one X1S-797 cone spacer. Bore 5.118 in, outside diameter 8-1/8 in.

Decoding the designation

797 is the inch cone number and fixes the 5.118 in bore. The D on 792D marks a one-piece double cup, two opposed raceways in a single ring. The X1S- prefix on X1S-797 marks a cone spacer, the ring that sits between the two cone back faces and sets the row spacing.

What these specs mean in practice

TDO stands for two-row, double outer. Because the two raceways are opposed, the assembly takes thrust in both directions and reacts moment load across the row spacing. The X1S cone spacer is ground to the assembly’s bench-set endplay, so the four pieces together carry a setting that is not recoverable by mixing loose components.

Published specifications

Bearing type: tapered roller bearing, two-row TDO assemblyDesign units: inchBore: 5.118 in (130.00 mm)Outside diameter: 8-1/8 in (206.38 mm)Number of rows: 2Bore type: straightClosure: openCones: two 797Double cup: 792DCone spacer: X1S-797

Quantity and configuration

Complete four-piece assembly. Sold as 1 Pc.

Fitting notes

The double cup presses into the housing bore against one square shoulder and locates both rows; the two cones go onto the journal with the X1S-797 spacer between their back faces, and the shaft nut clamps the stack against the shoulder.

Interchange guidance

A single 797/792 cone-and-cup pair shares the section but carries one row and no spacer, which makes it a related size rather than an interchange for this assembly.

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