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SB2057-101 — BEARING,ROLLER,CYLINDRICAL

✓ Government record, cited
— · TAPERED BEARING
PRODUCT OVERVIEW

SB2057-101: BEARING,ROLLER,CYLINDRICAL.

The BEARING,ROLLER,CYLINDRICAL is a the manufacturer industrial component. Key specifications include material: STEEL COMP E52100 ROLLER, bore_shape: STRAIGHT, bore_diameter: 2.3612 INCHES MINIMUM AND 2.3616 INCHES MAXIMUM IN, overall_width: 0.5058 INCHES MINIMUM AND 0.5118 INCHES MAXIMUM IN, surface_finish: GROUND, locating_feature: NONLOCATING. This part is cataloged in the U.S.

Government catalog under NSN 3110-01-140-3769, 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
SB2057-101
NSN: 3110-01-140-3769
FSC: 3110 — Bearings, Antifriction, Unmounted
CAGE: 38443 — SKF USA INC. (USA)
SPECIFICATIONS
materialSTEEL COMP E52100 ROLLER
bore_shapeSTRAIGHT
bore_diameter2.3612 INCHES MINIMUM AND 2.3616 INCHES MAXIMUM IN
overall_width0.5058 INCHES MINIMUM AND 0.5118 INCHES MAXIMUM IN
surface_finishGROUND
locating_featureNONLOCATING
style_designatorSINGLE ROW, NON-LOCATING, TWO LIP INNER RING, CYLINDRICAL OUTER RING, SEPARABLE
internal_clearance0.0024 INCHES MINIMUM RADIAL AND 0.0031 INCHES MAXIMUM RADIAL IN
overall_outside_diameter3.3461 INCHES MINIMUM AND 3.3465 INCHES MAXIMUM IN
retainer_fabrication_methodMACHINED
standard_tolerance_designationRBEC NO.5
NSN3110-01-140-3769
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: SB2057-101 · 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
•
RETAINER FABRICATION METHOD: MACHINED
•
INTERNAL CLEARANCE: 0.0024 INCHES MINIMUM RADIAL AND 0.0031 INCHES MAXIMUM RADIAL IN
•
LOCATING FEATURE: NONLOCATING
•
SURFACE FINISH: GROUND
•
STYLE DESIGNATOR: SINGLE ROW, NON-LOCATING, TWO LIP INNER RING, CYLINDRICAL OUTER RING, SEPARABLE
•
OVERALL OUTSIDE DIAMETER: 3.3461 INCHES MINIMUM AND 3.3465 INCHES MAXIMUM IN
•
BORE SHAPE: STRAIGHT
TECHNICAL CHARACTERISTICS
RETAINER FABRICATION METHODMACHINED
INTERNAL CLEARANCE0.0024 INCHES MINIMUM RADIAL AND 0.0031 INCHES MAXIMUM RADIAL IN
LOCATING FEATURENONLOCATING
SURFACE FINISHGROUND
STYLE DESIGNATORSINGLE ROW, NON-LOCATING, TWO LIP INNER RING, CYLINDRICAL OUTER RING, SEPARABLE
OVERALL WIDTH0.5058 INCHES MINIMUM AND 0.5118 INCHES MAXIMUM IN
OVERALL OUTSIDE DIAMETER3.3461 INCHES MINIMUM AND 3.3465 INCHES MAXIMUM IN
BORE SHAPESTRAIGHT
STANDARD TOLERANCE DESIGNATIONRBEC NO.5
BORE DIAMETER2.3612 INCHES MINIMUM AND 2.3616 INCHES MAXIMUM IN
OTHER ITEMS IN FSC 3110 — Bearings, Antifriction, Unmounted
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
3110-00-001-1937 3110-00-001-1938 3110-00-001-4661 3110-00-001-4662 3110-00-001-4689 3110-00-001-4722
SUBSTITUTES & CROSS-REFERENCES 1
MR1912C400Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandDemilitarization required — critical (Q)
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FREQUENTLY ASKED QUESTIONS
What is SB2057-101?
SB2057-101 is a BEARING,ROLLER,CYLINDRICAL.
What parts can replace SB2057-101?
There is 1 known substitute for SB2057-101: MR1912C400. Substitute compatibility should be verified for your specific system.
What is the NSN for SB2057-101?
SB2057-101 is cataloged in the U.S. Government catalog under NSN 3110-01-140-3769. This indicates validated use in U.S. government and defense supply chains.
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PartsTable Design LLC · partstable.com
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.