PartsTable
Technical Data Sheet
20057B ✓ Verified by PartsTable
· BALL BEARING
WHAT YOU NEED TO KNOW
2RS = sealed for life, ZZ = shielded re-greaseable ABEC grade: higher = tighter tolerance
ABEC-1 standard, ABEC-7+ for precision spindles
PRODUCT OVERVIEW

The BEARING,SLEEVE is a the manufacturer industrial component. Key specifications include material: TIN ALLOY UNS L13870 INNER LAYER, corner_shape: CHAMFERED OUTSIDE RIGHT CORNER, flange_width: 0.33875 INCHES MINIMUM AND 0.34875 INCHES MAXIMUM IN, overall_length: 3.15125 INCHES MINIMUM AND 3.16125 INCHES MAXIMUM IN, special_features: FLANGE FACE HAS 0.2500 IN RADIUS GROOVE ACROSS DIAMETER IN, style_designator: SOLID, EXTERNAL FLANGE ONE END. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 3120-00-358-2258, 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
20057B
NSN: 3120-00-358-2258
FSC: 3120
CAGE: 1ML14 — BRINKLEY TECHNOLOGY GROUP LLC DBA HERCULES MANUFACTURING (USA)
SPECIFICATIONS
materialTIN ALLOY UNS L13870 INNER LAYER
corner_shapeCHAMFERED OUTSIDE RIGHT CORNER
flange_width0.33875 INCHES MINIMUM AND 0.34875 INCHES MAXIMUM IN
overall_length3.15125 INCHES MINIMUM AND 3.16125 INCHES MAXIMUM IN
special_featuresFLANGE FACE HAS 0.2500 IN RADIUS GROOVE ACROSS DIAMETER IN
style_designatorSOLID, EXTERNAL FLANGE ONE END
body_inside_diameter1.4990 INCHES MINIMUM AND 1.5000 INCHES MAXIMUM IN
body_outside_diameter2.1885 INCHES MINIMUM AND 2.1895 INCHES MAXIMUM IN
flange_outside_diameter2.9950 INCHES MINIMUM AND 3.0050 INCHES MAXIMUM IN
lubricant_accommodation_styleGROOVED CIRCULAR
surface_groove_location_and_quantity1 EXTERNAL
antirotation/lubrication_type_and_quantity1 HOLE
NSN3120-00-358-2258
COMPONENT DIAGRAM
BALL BEARING — SEAL TYPE DETERMINES MAINTENANCE OD: — · BORE: — · WIDTH: — SEAL: Open · PN: 20057B · OEM ⚠ VERIFY BEFORE ORDERING ABEC grade: higher = tighter tolerance = higher cost. ABEC-1 is standard, ABEC-7+ for precision spindles. Open, shielded (ZZ), and sealed (2RS) versions have different max RPM ratings ✓ BROKER TIP 2RS = sealed for life (no maintenance). ZZ = shielded, re-greaseable. Open = must lubricate on install. Common interchange: 6205-2RS = 6205-2RSR = 6205-DDU (same bearing, different suffix) PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
CORNER SHAPE: SQUARE LEFT FLANGE OUTSIDE RIGHT CORNER
MATERIAL: TIN ALLOY UNS L13870 INNER LAYER
ANTIROTATION/LUBRICATION TYPE AND QUANTITY: 1 HOLE
TECHNICAL CHARACTERISTICS (FLIS)
CORNER SHAPESQUARE LEFT FLANGE OUTSIDE RIGHT CORNER
CORNER SHAPESQUARE OUTSIDE LEFT CORNER
CORNER SHAPESQUARE LEFT FLANGE BODY CORNER
CORNER SHAPESQUARE INSIDE LEFT CORNER
SPECIAL FEATURESFLANGE FACE HAS 0.2500 IN RADIUS GROOVE ACROSS DIAMETER IN
MATERIALTIN ALLOY UNS L13870 INNER LAYER
MATERIALSTEEL OUTER LAYER
ANTIROTATION/LUBRICATION TYPE AND QUANTITY1 HOLE
STYLE DESIGNATORSOLID, EXTERNAL FLANGE ONE END
SURFACE GROOVE LOCATION AND QUANTITY1 EXTERNAL
VERIFIED SUBSTITUTES & CROSS-REFERENCES 21
B2001Interchangeable
interchangeable cross-reference
interchangeable
20057Interchangeable
interchangeable cross-reference
interchangeable
2410 57/64Interchangeable
interchangeable cross-reference
interchangeable
C12238Interchangeable
interchangeable cross-reference
interchangeable
110 57/64Interchangeable
interchangeable cross-reference
interchangeable
AR13S4601-257520ALT2PC479Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 20057B?
20057B is a BEARING,SLEEVE.
What parts can replace 20057B?
There are 21 known substitutes for 20057B: B2001, 20057, 2410 57/64 and 18 more. Substitute compatibility should be verified for your specific system.
Is 20057B still available?
20057B is currently cancelled.
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