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PartsTable / COMPONENT / QBR27251
QBR27251 ✓ Verified by PartsTable
— · TAPERED BEARING
WHAT YOU NEED TO KNOW
Cup and cone sold separately — confirm both needed Timken series numbers indicate dimensions
Cup and cone NOT sold as set — verify order
PRODUCT OVERVIEW

The ROLLER,BEARING is a the manufacturer industrial component. Key specifications include material: STEEL COMP E50100 OR STEEL COMP E52100 OVERALL, overall_length: 1.3025 INCHES MINIMUM AND 1.3125 INCHES MAXIMUM IN, special_features: ROCKWELL C SCALE 60 MIN 64 MAX,GAGE POINT 0.0620 IN. FROM END 0.24935 IN.

MIN 0.24975 IN. MAX DIA IN, style_designator: CYLINDRICAL ROLLER, FLAT ENDS, rolling_element_diameter: 0.2498 INCHES MINIMUM AND 0.2500 INCHES MAXIMUM IN, material_document_and_classification: AISI 50100 OR 52100 ASSN STD SINGLE MATERIAL RESPONSE OVERALL. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 3110-01-025-7147, indicating validated use in U.S. government and defense logistics supply chains. Available through authorized enterprise resellers and TPM (Third Party Maintenance) channels.

Verify compatibility with your specific system configuration before ordering.

WHERE IT FITS
QBR27251
NSN: 3110-01-025-7147
FSC: 3110
CAGE: 60380 — TIMKEN AEROSPACE, INC DBA TORRINGTON PRODUCT (USA)
SPECIFICATIONS
materialSTEEL COMP E50100 OR STEEL COMP E52100 OVERALL
overall_length1.3025 INCHES MINIMUM AND 1.3125 INCHES MAXIMUM IN
special_featuresROCKWELL C SCALE 60 MIN 64 MAX,GAGE POINT 0.0620 IN. FROM END 0.24935 IN. MIN 0.24975 IN. MAX DIA IN
style_designatorCYLINDRICAL ROLLER, FLAT ENDS
rolling_element_diameter0.2498 INCHES MINIMUM AND 0.2500 INCHES MAXIMUM IN
material_document_and_classificationAISI 50100 OR 52100 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
NSN3110-01-025-7147
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: QBR27251 · OEM ⚠ VERIFY BEFORE ORDERING Cup and cone sold separately — verify you are ordering BOTH parts or the correct component. Always replace cup and cone together — mismatched wear = premature failure ✓ BROKER TIP Taper angle determines axial load capacity. Steeper angle = higher axial load rating. Timken series numbers indicate dimensions — cross-reference carefully PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
•
MATERIAL DOCUMENT AND CLASSIFICATION: AISI 50100 OR 52100 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
•
MATERIAL: STEEL COMP E50100 OR STEEL COMP E52100 OVERALL
•
STYLE DESIGNATOR: CYLINDRICAL ROLLER, FLAT ENDS
•
ROLLING ELEMENT DIAMETER: 0.2498 INCHES MINIMUM AND 0.2500 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS (FLIS)
MATERIAL DOCUMENT AND CLASSIFICATIONAISI 50100 OR 52100 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
MATERIALSTEEL COMP E50100 OR STEEL COMP E52100 OVERALL
STYLE DESIGNATORCYLINDRICAL ROLLER, FLAT ENDS
OVERALL LENGTH1.3025 INCHES MINIMUM AND 1.3125 INCHES MAXIMUM IN
SPECIAL FEATURESROCKWELL C SCALE 60 MIN 64 MAX,GAGE POINT 0.0620 IN. FROM END 0.24935 IN. MIN 0.24975 IN. MAX DIA IN
ROLLING ELEMENT DIAMETER0.2498 INCHES MINIMUM AND 0.2500 INCHES MAXIMUM IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 6
103539Interchangeable
interchangeable cross-reference
interchangeable
41-181Interchangeable
interchangeable cross-reference
interchangeable
DF355Interchangeable
interchangeable cross-reference
interchangeable
D7448-8Interchangeable
interchangeable cross-reference
interchangeable
103539AInterchangeable
interchangeable cross-reference
interchangeable
6685PL2126315Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is QBR27251?
QBR27251 is a ROLLER,BEARING.
What parts can replace QBR27251?
There are 6 known substitutes for QBR27251: 103539, 41-181, DF355 and 3 more. Substitute compatibility should be verified for your specific system.
What is the NSN for QBR27251?
QBR27251 is cataloged in the Federal Logistics Information System (FLIS) under NSN 3110-01-025-7147. This indicates validated use in U.S. government and defense supply chains.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026