PartsTable
Technical Data Sheet
KR9-CWB ✓ 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,PLAIN,SELF-ALIGNING is a the manufacturer industrial component. Key specifications include material: STEEL COMP 440C INNER MEMBER, bore_diameter: 0.5625 INCHES NOMINAL IN, hardness_rating: 55.0 ROCKWELL C MINIMUM AND 62.0 ROCKWELL C MAXIMUM INNER MEMBER, special_features: PASSIVATION OPTIONAL, style_designator: WITH INSERT AND/OR LINER, inner_member_width: 0.6870 INCHES NOMINAL IN. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 3120-01-148-7582, 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
KR9-CWB
NSN: 3120-01-148-7582
FSC: 3120
CAGE: 50632 — KAMATICS CORPORATION (USA)
SPECIFICATIONS
materialSTEEL COMP 440C INNER MEMBER
bore_diameter0.5625 INCHES NOMINAL IN
hardness_rating55.0 ROCKWELL C MINIMUM AND 62.0 ROCKWELL C MAXIMUM INNER MEMBER
special_featuresPASSIVATION OPTIONAL
style_designatorWITH INSERT AND/OR LINER
inner_member_width0.6870 INCHES NOMINAL IN
outer_member_width0.5360 INCHES NOMINAL IN
static_radial_load_rating26600 POUNDS LBS
outer_member_outside_diameter1.1250 INCHES NOMINAL IN
material_document_and_classificationAMS 5643 ASSN STD SINGLE MATERIAL RESPONSE OUTER RACE MEMBER
NSN3120-01-148-7582
COMPONENT DIAGRAM
BALL BEARING — SEAL TYPE DETERMINES MAINTENANCE OD: — · BORE: — · WIDTH: — SEAL: Open · PN: KR9-CWB · 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
STATIC RADIAL LOAD RATING: 26600 POUNDS LBS
MATERIAL DOCUMENT AND CLASSIFICATION: AMS 5643 ASSN STD SINGLE MATERIAL RESPONSE OUTER RACE MEMBER
MATERIAL: STEEL CORROSION RESISTING OUTER RACE MEMBER
HARDNESS RATING: 55.0 ROCKWELL C MINIMUM AND 62.0 ROCKWELL C MAXIMUM INNER MEMBER
STYLE DESIGNATOR: WITH INSERT AND/OR LINER
TECHNICAL CHARACTERISTICS (FLIS)
STATIC RADIAL LOAD RATING26600 POUNDS LBS
MATERIAL DOCUMENT AND CLASSIFICATIONAMS 5643 ASSN STD SINGLE MATERIAL RESPONSE OUTER RACE MEMBER
MATERIALSTEEL CORROSION RESISTING OUTER RACE MEMBER
SPECIAL FEATURESPASSIVATION OPTIONAL
MATERIALSTEEL COMP 440C INNER MEMBER
HARDNESS RATING55.0 ROCKWELL C MINIMUM AND 62.0 ROCKWELL C MAXIMUM INNER MEMBER
STYLE DESIGNATORWITH INSERT AND/OR LINER
HARDNESS RATING28.0 ROCKWELL C MINIMUM AND 37.0 ROCKWELL C MAXIMUM OUTER RACE MEMBER
INNER MEMBER WIDTH0.6870 INCHES NOMINAL IN
BORE DIAMETER0.5625 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 26
KR4-CWBInterchangeable
interchangeable cross-reference
interchangeable
MS21231-4Interchangeable
interchangeable cross-reference
interchangeable
AS14102Interchangeable
interchangeable cross-reference
interchangeable
KR-7CWBInterchangeable
interchangeable cross-reference
interchangeable
MS14102-7Interchangeable
interchangeable cross-reference
interchangeable
AS81820Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is KR9-CWB?
KR9-CWB is a BEARING,PLAIN,SELF-ALIGNING.
What parts can replace KR9-CWB?
There are 26 known substitutes for KR9-CWB: KR4-CWB, MS21231-4, AS14102 and 23 more. Substitute compatibility should be verified for your specific system.
Is KR9-CWB still available?
KR9-CWB is currently cancelled.
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