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Technical Data Sheet
PartsTable / COMPONENT / 30SF48
30SF48 ✓ 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 E52100 INNER MEMBER, bore_diameter: 2.9994 INCHES MINIMUM AND 3.0000 INCHES MAXIMUM IN, style_designator: WITHOUT INSERT OR LINER, inner_member_width: 2.6200 INCHES MINIMUM AND 2.6250 INCHES MAXIMUM IN, outer_member_width: 2.2450 INCHES MINIMUM AND 2.2500 INCHES MAXIMUM IN, end_item_identification: 2330-01-303-8832 M1000 CHETTL TRAILER. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 3120-00-420-5772, 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
30SF48
NSN: 3120-00-420-5772
FSC: 3120
CAGE: 21335 — TIMKEN CO DIV THE TIMKEN COMPANY (USA)
SPECIFICATIONS
materialSTEEL COMP E52100 INNER MEMBER
bore_diameter2.9994 INCHES MINIMUM AND 3.0000 INCHES MAXIMUM IN
style_designatorWITHOUT INSERT OR LINER
inner_member_width2.6200 INCHES MINIMUM AND 2.6250 INCHES MAXIMUM IN
outer_member_width2.2450 INCHES MINIMUM AND 2.2500 INCHES MAXIMUM IN
end_item_identification2330-01-303-8832 M1000 CHETTL TRAILER
static_radial_load_rating893000 POUNDS LBS
outer_member_outside_diameter4.7492 INCHES MINIMUM AND 4.7500 INCHES MAXIMUM IN
NSN3120-00-420-5772
COMPONENT DIAGRAM
BALL BEARING — SEAL TYPE DETERMINES MAINTENANCE OD: — · BORE: — · WIDTH: — SEAL: Open · PN: 30SF48 · 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: STEEL COMP 4140 INTERNAL OUTER MEMBER
•
STYLE DESIGNATOR: WITHOUT INSERT OR LINER
•
INNER MEMBER WIDTH: 2.6200 INCHES MINIMUM AND 2.6250 INCHES MAXIMUM IN
•
BORE DIAMETER: 2.9994 INCHES MINIMUM AND 3.0000 INCHES MAXIMUM IN
•
OUTER MEMBER OUTSIDE DIAMETER: 4.7492 INCHES MINIMUM AND 4.7500 INCHES MAXIMUM IN
•
OUTER MEMBER WIDTH: 2.2450 INCHES MINIMUM AND 2.2500 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS (FLIS)
MATERIALSTEEL COMP 4140 INTERNAL OUTER MEMBER
MATERIALSTEEL COMP E52100 INNER MEMBER
STYLE DESIGNATORWITHOUT INSERT OR LINER
INNER MEMBER WIDTH2.6200 INCHES MINIMUM AND 2.6250 INCHES MAXIMUM IN
END ITEM IDENTIFICATION2330-01-303-8832 M1000 CHETTL TRAILER
BORE DIAMETER2.9994 INCHES MINIMUM AND 3.0000 INCHES MAXIMUM IN
OUTER MEMBER OUTSIDE DIAMETER4.7492 INCHES MINIMUM AND 4.7500 INCHES MAXIMUM IN
OUTER MEMBER WIDTH2.2450 INCHES MINIMUM AND 2.2500 INCHES MAXIMUM IN
STATIC RADIAL LOAD RATING893000 POUNDS LBS
VERIFIED SUBSTITUTES & CROSS-REFERENCES 12
B55-1-1961B48Interchangeable
interchangeable cross-reference
interchangeable
48BInterchangeable
interchangeable cross-reference
interchangeable
B48Interchangeable
interchangeable cross-reference
interchangeable
A07817Interchangeable
interchangeable cross-reference
interchangeable
SS1-13Interchangeable
interchangeable cross-reference
interchangeable
12273411Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 30SF48?
30SF48 is a BEARING,PLAIN,SELF-ALIGNING.
What parts can replace 30SF48?
There are 12 known substitutes for 30SF48: B55-1-1961B48, 48B, B48 and 9 more. Substitute compatibility should be verified for your specific system.
Is 30SF48 still available?
30SF48 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