PartsTable
Technical Data Sheet
BK028 ✓ 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 HALF,SLEEVE is a the manufacturer industrial component. Key specifications include material: STEEL COMP 1010 OUTER LAYER, corner_shape: SQUARE OUTSIDE RIGHT CORNER, overall_length: 1.1200 INCHES MINIMUM AND 1.1300 INCHES MAXIMUM IN, style_designator: HALF SLEEVE, PLAIN, NO OUTSIDE FLANGES, body_inside_diameter: 2.4970 INCHES MINIMUM AND 2.4980 INCHES MAXIMUM IN, body_outside_diameter: 2.6993 INCHES MINIMUM AND 2.7000 INCHES MAXIMUM IN. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 3120-00-352-3080, 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
BK028
NSN: 3120-00-352-3080
FSC: 3120
CAGE: 89073 — REXARC INTERNATIONAL, INC (USA)
SPECIFICATIONS
materialSTEEL COMP 1010 OUTER LAYER
corner_shapeSQUARE OUTSIDE RIGHT CORNER
overall_length1.1200 INCHES MINIMUM AND 1.1300 INCHES MAXIMUM IN
style_designatorHALF SLEEVE, PLAIN, NO OUTSIDE FLANGES
body_inside_diameter2.4970 INCHES MINIMUM AND 2.4980 INCHES MAXIMUM IN
body_outside_diameter2.6993 INCHES MINIMUM AND 2.7000 INCHES MAXIMUM IN
lubricant_accommodation_styleGROOVED CIRCULAR
material_document_and_classificationUNABLE TO DECODE
surface_groove_location_and_quantity1 INTERNAL
antirotation/lubrication_type_and_quantity1 HOLE
NSN3120-00-352-3080
COMPONENT DIAGRAM
BALL BEARING — SEAL TYPE DETERMINES MAINTENANCE OD: — · BORE: — · WIDTH: — SEAL: Open · PN: BK028 · 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
BODY INSIDE DIAMETER: 2.4970 INCHES MINIMUM AND 2.4980 INCHES MAXIMUM IN
MATERIAL DOCUMENT AND CLASSIFICATION: UNABLE TO DECODE
ANTIROTATION/LUBRICATION TYPE AND QUANTITY: 1 HOLE
LUBRICANT ACCOMMODATION STYLE: GROOVED CIRCULAR
MATERIAL: COPPER ALLOY INNER LAYER
SURFACE GROOVE LOCATION AND QUANTITY: 1 INTERNAL
CORNER SHAPE: CHAMFERED INSIDE LEFT CORNER
STYLE DESIGNATOR: HALF SLEEVE, PLAIN, NO OUTSIDE FLANGES
TECHNICAL CHARACTERISTICS (FLIS)
BODY INSIDE DIAMETER2.4970 INCHES MINIMUM AND 2.4980 INCHES MAXIMUM IN
MATERIAL DOCUMENT AND CLASSIFICATIONUNABLE TO DECODE
ANTIROTATION/LUBRICATION TYPE AND QUANTITY1 HOLE
LUBRICANT ACCOMMODATION STYLEGROOVED CIRCULAR
MATERIALCOPPER ALLOY INNER LAYER
SURFACE GROOVE LOCATION AND QUANTITY1 INTERNAL
CORNER SHAPECHAMFERED INSIDE LEFT CORNER
STYLE DESIGNATORHALF SLEEVE, PLAIN, NO OUTSIDE FLANGES
OVERALL LENGTH1.1200 INCHES MINIMUM AND 1.1300 INCHES MAXIMUM IN
MATERIALSTEEL COMP 1010 OUTER LAYER
VERIFIED SUBSTITUTES & CROSS-REFERENCES 7
B2056-15Interchangeable
interchangeable cross-reference
interchangeable
D1143Interchangeable
interchangeable cross-reference
interchangeable
A71-415-1Interchangeable
interchangeable cross-reference
interchangeable
45114853-3Interchangeable
Same NIIN cross-reference
interchangeable
B2738Interchangeable
Same NIIN cross-reference
interchangeable
4514853Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is BK028?
BK028 is a BEARING HALF,SLEEVE.
What parts can replace BK028?
There are 7 known substitutes for BK028: B2056-15, D1143, A71-415-1 and 4 more. Substitute compatibility should be verified for your specific system.
Is BK028 still available?
BK028 is currently cancelled.
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