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SBU8RZH21A — BEARING,PLAIN,SELF-ALIGNING

✓ Government record, cited
— · BALL BEARING
PRODUCT OVERVIEW

SBU8RZH21A: BEARING,PLAIN,SELF-ALIGNING.

The BEARING,PLAIN,SELF-ALIGNING is a the manufacturer industrial component. Key specifications include material: STEEL COMP 630 OUTER RACE MEMBER, bore_diameter: 0.2495 INCHES MINIMUM AND 0.2500 INCHES MAXIMUM IN, hardness_rating: 28.0 ROCKWELL C MINIMUM AND 36.0 ROCKWELL C MAXIMUM OUTER RACE MEMBER, style_designator: WITHOUT INSERT OR LINER WITH STAKING GROOVE, inner_member_width: 0.3380 INCHES MINIMUM AND 0.3430 INCHES MAXIMUM IN, outer_member_width: 0.2450 INCHES MINIMUM AND 0.2500 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 3120-00-332-4437, 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
SBU8RZH21A
NSN: 3120-00-332-4437
FSC: 3120 — Bearings, Plain, Unmounted
CAGE: 3NPS1 — RBC AIRCRAFT PRODUCTS, INC. (USA)
SPECIFICATIONS
materialSTEEL COMP 630 OUTER RACE MEMBER
bore_diameter0.2495 INCHES MINIMUM AND 0.2500 INCHES MAXIMUM IN
hardness_rating28.0 ROCKWELL C MINIMUM AND 36.0 ROCKWELL C MAXIMUM OUTER RACE MEMBER
style_designatorWITHOUT INSERT OR LINER WITH STAKING GROOVE
inner_member_width0.3380 INCHES MINIMUM AND 0.3430 INCHES MAXIMUM IN
outer_member_width0.2450 INCHES MINIMUM AND 0.2500 INCHES MAXIMUM IN
static_radial_load_rating6330 POUNDS LBS
outer_member_outside_diameter0.6557 INCHES MINIMUM AND 0.6562 INCHES MAXIMUM IN
NSN3120-00-332-4437
COMPONENT DIAGRAM
BALL BEARING — SEAL TYPE DETERMINES MAINTENANCE OD: — · BORE: — · WIDTH: — SEAL: Open · PN: SBU8RZH21A · 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
•
INNER MEMBER WIDTH: 0.3380 INCHES MINIMUM AND 0.3430 INCHES MAXIMUM IN
•
HARDNESS RATING: 28.0 ROCKWELL C MINIMUM AND 36.0 ROCKWELL C MAXIMUM OUTER RACE MEMBER
•
OUTER MEMBER WIDTH: 0.2450 INCHES MINIMUM AND 0.2500 INCHES MAXIMUM IN
•
STYLE DESIGNATOR: WITHOUT INSERT OR LINER WITH STAKING GROOVE
•
STATIC RADIAL LOAD RATING: 6330 POUNDS LBS
•
BORE DIAMETER: 0.2495 INCHES MINIMUM AND 0.2500 INCHES MAXIMUM IN
•
MATERIAL: COPPER ALLOY 172 OR COPPER ALLOY 173 INNER MEMBER
TECHNICAL CHARACTERISTICS
INNER MEMBER WIDTH0.3380 INCHES MINIMUM AND 0.3430 INCHES MAXIMUM IN
HARDNESS RATING28.0 ROCKWELL C MINIMUM AND 36.0 ROCKWELL C MAXIMUM OUTER RACE MEMBER
HARDNESS RATING37.0 ROCKWELL C MINIMUM INNER MEMBER
OUTER MEMBER WIDTH0.2450 INCHES MINIMUM AND 0.2500 INCHES MAXIMUM IN
STYLE DESIGNATORWITHOUT INSERT OR LINER WITH STAKING GROOVE
STATIC RADIAL LOAD RATING6330 POUNDS LBS
BORE DIAMETER0.2495 INCHES MINIMUM AND 0.2500 INCHES MAXIMUM IN
MATERIALCOPPER ALLOY 172 OR COPPER ALLOY 173 INNER MEMBER
MATERIALSTEEL COMP 630 OUTER RACE MEMBER
OUTER MEMBER OUTSIDE DIAMETER0.6557 INCHES MINIMUM AND 0.6562 INCHES MAXIMUM IN
SUBSTITUTES & CROSS-REFERENCES 5
10107628Reference document
Same NSN cross-reference
Reference document — Informative reference only
SBU8RZH21-4AReference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
ST4M123-4Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
BNG04H-123Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
KSB4-25SSBD1Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is SBU8RZH21A?
SBU8RZH21A is a BEARING,PLAIN,SELF-ALIGNING.
What parts can replace SBU8RZH21A?
There are 5 known substitutes for SBU8RZH21A: 10107628, SBU8RZH21-4A, ST4M123-4 and 2 more. Substitute compatibility should be verified for your specific system.
What is the NSN for SBU8RZH21A?
SBU8RZH21A is cataloged in the U.S. Government catalog under NSN 3120-00-332-4437. This indicates validated use in U.S. government and defense supply chains.
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