QR12011 — CUP,TAPERED ROLLER BEARING

✓ Government record, cited

— · TAPERED BEARING

PRODUCT OVERVIEW

QR12011: CUP,TAPERED ROLLER BEARING.

The CUP,TAPERED ROLLER BEARING is a the manufacturer tape media or drive component used in enterprise backup, archival, and disaster recovery environments. Key specifications include flange_width: 0.4380 INCHES NOMINAL IN, overall_width: 2.1250 INCHES NOMINAL IN, special_features: FLANGE IS 1.0060 IN. FROM END ALONG THE WIDTH IN, style_designator: DOUBLE CUP, FLANGED, NORMAL ANGLE, outer_ring_outside_diameter: 4.4020 INCHES MINIMUM AND 4.4100 INCHES MAXIMUM IN.

This part is cataloged in the U.S. Government catalog under NSN 3110-00-040-2839, 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

QR12011

NSN: 3110-00-040-2839
FSC: 3110 — Bearings, Antifriction, Unmounted
CAGE: 19207 — U S ARMY TANK AUTOMOTIVE COMMAND AMSTA-IM-MM (USA)

SPECIFICATIONS

flange_width	0.4380 INCHES NOMINAL IN
overall_width	2.1250 INCHES NOMINAL IN
special_features	FLANGE IS 1.0060 IN. FROM END ALONG THE WIDTH IN
style_designator	DOUBLE CUP, FLANGED, NORMAL ANGLE
outer_ring_outside_diameter	4.4020 INCHES MINIMUM AND 4.4100 INCHES MAXIMUM IN
NSN	3110-00-040-2839

COMPONENT DIAGRAM

KEY FEATURES

•

STYLE DESIGNATOR: DOUBLE CUP, FLANGED, NORMAL ANGLE

•

FLANGE WIDTH: 0.4380 INCHES NOMINAL IN

•

OUTER RING OUTSIDE DIAMETER: 4.4020 INCHES MINIMUM AND 4.4100 INCHES MAXIMUM IN

TYPICAL APPLICATIONS

Long-term data archival and compliance retention
Offsite backup and disaster recovery
Air-gapped ransomware protection
Cold storage tier for infrequently accessed data

TECHNICAL CHARACTERISTICS

STYLE DESIGNATOR	DOUBLE CUP, FLANGED, NORMAL ANGLE
OVERALL WIDTH	2.1250 INCHES NOMINAL IN
SPECIAL FEATURES	FLANGE IS 1.0060 IN. FROM END ALONG THE WIDTH IN
FLANGE WIDTH	0.4380 INCHES NOMINAL IN
OUTER RING OUTSIDE DIAMETER	4.4020 INCHES MINIMUM AND 4.4100 INCHES MAXIMUM IN

OTHER ITEMS IN FSC 3110 — Bearings, Antifriction, Unmounted

Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.

3110-00-001-1937 3110-00-001-1938 3110-00-001-4661 3110-00-001-4662 3110-00-001-4689 3110-00-001-4722

SUBSTITUTES & CROSS-REFERENCES 2

7989443Same NSN cross-reference

Same NSN cross-reference

Also cataloged under this NSN

SQAP 8332925Same NSN cross-reference

Same NSN cross-reference

Also cataloged under this NSN

LIFECYCLE

NSN statusActive· U.S. Government catalog

Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required

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FREQUENTLY ASKED QUESTIONS

What is QR12011?

QR12011 is a CUP,TAPERED ROLLER BEARING.

What parts can replace QR12011?

There are 2 known substitutes for QR12011: 7989443, SQAP 8332925. Substitute compatibility should be verified for your specific system.

What is the NSN for QR12011?

QR12011 is cataloged in the U.S. Government catalog under NSN 3110-00-040-2839. This indicates validated use in U.S. government and defense supply chains.

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QR12011 — CUP,TAPERED ROLLER BEARING

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