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Technical Data Sheet
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TR8 ✓ 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,BALL,ANNULAR is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, bore_shape: STRAIGHT, grip_length: 2.031 INCHES NOMINAL IN, bore_diameter: 0.7500 INCHES NOMINAL IN, overall_width: 0.3125 INCHES NOMINAL IN, actuation_type: PULL AND PUSH. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 3120-00-058-9073, 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
TR8
NSN: 3120-00-058-9073
FSC: 3120
CAGE: 57448 — STEPHENS-ADAMSON INC A SUB OF ALLIS-CHALMERS CORP (USA)
SPECIFICATIONS
materialSTEEL OVERALL
bore_shapeSTRAIGHT
grip_length2.031 INCHES NOMINAL IN
bore_diameter0.7500 INCHES NOMINAL IN
overall_width0.3125 INCHES NOMINAL IN
actuation_typePULL AND PUSH
lanyard_length7.000 INCHES NOMINAL IN
load_directionRADIAL
shank_diameter0.500 INCHES NOMINAL IN
surface_finishGROUND
detent_quantity1
style_designatorRING HANDLE
NSN3120-00-058-9073
COMPONENT DIAGRAM
BALL BEARING — SEAL TYPE DETERMINES MAINTENANCE OD: — · BORE: — · WIDTH: — SEAL: Open · PN: TR8 · 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
•
SURFACE TREATMENT: CADMIUM ROD END BODY
•
MATERIAL: STEEL INTERNAL ROD END BODY
•
MATERIAL DOCUMENT AND CLASSIFICATION: AMS 7440 ASSN STD ALL MATERIAL RESPONSES INNER MEMBER
TECHNICAL CHARACTERISTICS (FLIS)
SURFACE TREATMENTCADMIUM ROD END BODY
SURFACE TREATMENTCHROMIUM INNER MEMBER
MATERIALSTEEL INTERNAL ROD END BODY
MATERIALSTEEL COMP E50100 OR STEEL COMP E51100 OR STEEL COMP E52100 INNER MEMBER
MATERIAL DOCUMENT AND CLASSIFICATIONAMS 7440 ASSN STD ALL MATERIAL RESPONSES INNER MEMBER
MATERIALSTEEL RACE INSERT
VERIFIED SUBSTITUTES & CROSS-REFERENCES 6
S8RInterchangeable
interchangeable cross-reference
interchangeable
C67373Interchangeable
interchangeable cross-reference
interchangeable
8505209Interchangeable
interchangeable cross-reference
interchangeable
TR8Interchangeable
interchangeable cross-reference
interchangeable
8109309Interchangeable
interchangeable cross-reference
interchangeable
JP4150Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is TR8?
TR8 is a BEARING,BALL,ANNULAR.
What parts can replace TR8?
There are 6 known substitutes for TR8: S8R, C67373, 8505209 and 3 more. Substitute compatibility should be verified for your specific system.
Is TR8 still available?
TR8 is currently cancelled.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026