PartsTable
Technical Data Sheet
R-8A ✓ 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

INTERFACE UNIT,AUTOMATIC DATA PR. Key specifications include material: COPPER ALLOY RACE INSERT, bore_diameter: 0.4995 INCHES MINIMUM AND 0.5000 INCHES MAXIMUM IN, style_designator: WITH INSERT AND/OR LINER, surface_treatment: CHROMIUM INNER MEMBER, inner_member_width: 0.4950 INCHES MINIMUM AND 0.5000 INCHES MAXIMUM IN, outer_member_width: 0.3900 INCHES NOMINAL IN. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 3120-00-808-8337, 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
R-8A
NSN: 3120-00-808-8337
FSC: 3120
CAGE: 99528 — RADIAL BEARING CORPORATION DBA RADIAL BEARING CORP OF CONNECTICU DIV RADIAL BEARING LLC (USA)
SPECIFICATIONS
materialCOPPER ALLOY RACE INSERT
bore_diameter0.4995 INCHES MINIMUM AND 0.5000 INCHES MAXIMUM IN
style_designatorWITH INSERT AND/OR LINER
surface_treatmentCHROMIUM INNER MEMBER
inner_member_width0.4950 INCHES MINIMUM AND 0.5000 INCHES MAXIMUM IN
outer_member_width0.3900 INCHES NOMINAL IN
lubrication_featureGROOVE EXTERNAL OUTER MEMBER
pressure_relief_methodAUTOMATIC
maximum_working_pressure8.000 POUNDS PER SQUARE INCH (PSI) LBS
system_for_which_designedPRESSURIZED
outer_member_outside_diameter0.9995 INCHES MINIMUM AND 1.0000 INCHES MAXIMUM IN
NSN3120-00-808-8337
COMPONENT DIAGRAM
BALL BEARING — SEAL TYPE DETERMINES MAINTENANCE OD: — · BORE: — · WIDTH: — SEAL: Open · PN: R-8A · 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
MATERIAL: COPPER ALLOY RACE INSERT
LUBRICATION FEATURE: PERFORATION OUTER RACE MEMBER
SURFACE TREATMENT: CADMIUM OUTER RACE MEMBER
TECHNICAL CHARACTERISTICS (FLIS)
MATERIALCOPPER ALLOY RACE INSERT
LUBRICATION FEATUREPERFORATION OUTER RACE MEMBER
LUBRICATION FEATUREGROOVE INTERNAL INNER MEMBER
MATERIALSTEEL COMP 4130 OUTER RACE MEMBER
LUBRICATION FEATUREGROOVE EXTERNAL OUTER MEMBER
SURFACE TREATMENTCADMIUM OUTER RACE MEMBER
MATERIALSTEEL COMP E52100 INNER MEMBER
SURFACE TREATMENTCHROMIUM INNER MEMBER
OUTER MEMBER WIDTH0.3900 INCHES NOMINAL IN
STYLE DESIGNATORWITH INSERT AND/OR LINER
VERIFIED SUBSTITUTES & CROSS-REFERENCES 4
5001-93Interchangeable
interchangeable cross-reference
interchangeable
ER-8Interchangeable
interchangeable cross-reference
interchangeable
R8AInterchangeable
interchangeable cross-reference
interchangeable
LSS8GInterchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability
RoHS CompliantEAR99Not HAZMAT
Ready to buy R-8A?
Compare prices from verified sellers on eBay
Buy on eBay →
As an eBay Partner, PartsTable may earn a commission. Your price is not affected.
FREQUENTLY ASKED QUESTIONS
What is R-8A?
R-8A is a INTERFACE UNIT,AUTOMATIC DATA PR.
What parts can replace R-8A?
There are 4 known substitutes for R-8A: 5001-93, ER-8, R8A and 1 more. Substitute compatibility should be verified for your specific system.
Is R-8A still available?
R-8A is currently cancelled.
Community Feedback
Comments (0)
No comments yet. Be the first to share what you know.
Leave a Comment
Comments are reviewed before appearing. You will receive an email to verify before your comment appears.

Request a Quote — R-8A