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522RF1 — BEARING,BALL,ANNULAR

✓ Government record, cited
— · TAPERED BEARING
PRODUCT OVERVIEW

522RF1: BEARING,BALL,ANNULAR.

The BEARING,BALL,ANNULAR is a the manufacturer industrial component. Key specifications include material: STEEL INNER RING, bore_shape: STRAIGHT, bore_diameter: 4.3291 INCHES MINIMUM AND 4.3299 INCHES MAXIMUM IN, overall_width: 2.7450 INCHES MINIMUM AND 2.7500 INCHES MAXIMUM IN, load_direction: ANGULAR, surface_finish: GROUND. This part is cataloged in the U.S.

Government catalog under NSN 3110-00-151-8075, 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
522RF1
NSN: 3110-00-151-8075
FSC: 3110 — Bearings, Antifriction, Unmounted
CAGE: 38443 — SKF USA INC. (USA)
SPECIFICATIONS
materialSTEEL INNER RING
bore_shapeSTRAIGHT
bore_diameter4.3291 INCHES MINIMUM AND 4.3299 INCHES MAXIMUM IN
overall_width2.7450 INCHES MINIMUM AND 2.7500 INCHES MAXIMUM IN
load_directionANGULAR
surface_finishGROUND
style_designatorLOADING GROOVE, NON-SEPARABLE
overall_outside_diameter7.8728 INCHES MINIMUM AND 7.8740 INCHES MAXIMUM IN
internal_fit-up_designationSTANDARD
internal_fit-up_contact_angular_directionOUTWARD CONVERGENT
NSN3110-00-151-8075
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: 522RF1 · OEM ⚠ VERIFY BEFORE ORDERING Cup and cone sold separately — verify you are ordering BOTH parts or the correct component. Always replace cup and cone together — mismatched wear = premature failure ✓ BROKER TIP Taper angle determines axial load capacity. Steeper angle = higher axial load rating. Timken series numbers indicate dimensions — cross-reference carefully PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
•
INTERNAL FIT-UP DESIGNATION: STANDARD
•
SURFACE FINISH: GROUND
•
STYLE DESIGNATOR: LOADING GROOVE, NON-SEPARABLE
•
OVERALL OUTSIDE DIAMETER: 7.8728 INCHES MINIMUM AND 7.8740 INCHES MAXIMUM IN
•
BORE SHAPE: STRAIGHT
•
LOAD DIRECTION: ANGULAR
•
INTERNAL FIT-UP CONTACT ANGULAR DIRECTION: OUTWARD CONVERGENT
TECHNICAL CHARACTERISTICS
INTERNAL FIT-UP DESIGNATIONSTANDARD
SURFACE FINISHGROUND
STYLE DESIGNATORLOADING GROOVE, NON-SEPARABLE
OVERALL WIDTH2.7450 INCHES MINIMUM AND 2.7500 INCHES MAXIMUM IN
OVERALL OUTSIDE DIAMETER7.8728 INCHES MINIMUM AND 7.8740 INCHES MAXIMUM IN
BORE SHAPESTRAIGHT
LOAD DIRECTIONANGULAR
INTERNAL FIT-UP CONTACT ANGULAR DIRECTIONOUTWARD CONVERGENT
BORE DIAMETER4.3291 INCHES MINIMUM AND 4.3299 INCHES MAXIMUM IN
MATERIALSTEEL OUTER RING
SUBSTITUTES & CROSS-REFERENCES 2
700228Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
222JJReference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 522RF1?
522RF1 is a BEARING,BALL,ANNULAR.
What parts can replace 522RF1?
There are 2 known substitutes for 522RF1: 700228, 222JJ. Substitute compatibility should be verified for your specific system.
What is the NSN for 522RF1?
522RF1 is cataloged in the U.S. Government catalog under NSN 3110-00-151-8075. This indicates validated use in U.S. government and defense supply chains.
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✓ PartsTable — the parts reference. Every fact cited to its source.
PartsTable Design LLC · partstable.com
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.