778448 — BEARING,ROLLER,CYLINDRICAL

✓ Government record, cited

— · TAPERED BEARING

PRODUCT OVERVIEW

778448: BEARING,ROLLER,CYLINDRICAL.

The BEARING,ROLLER,CYLINDRICAL is a the manufacturer industrial component. Key specifications include material: COPPER ALLOY RETAINER, bore_shape: STRAIGHT, bore_diameter: 1.7717 INCHES NOMINAL IN, overall_width: 16.0 MILLIMETERS NOMINAL MM, surface_finish: GROUND, locating_feature: NONLOCATING. This part is cataloged in the U.S.

Government catalog under NSN 3110-01-009-9822, 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

778448

NSN: 3110-01-009-9822
FSC: 3110 — Bearings, Antifriction, Unmounted
CAGE: 52661 — RTX CORPORATION DIV PRATT & WHITNEY (USA)

SPECIFICATIONS

material	COPPER ALLOY RETAINER
bore_shape	STRAIGHT
bore_diameter	1.7717 INCHES NOMINAL IN
overall_width	16.0 MILLIMETERS NOMINAL MM
surface_finish	GROUND
locating_feature	NONLOCATING
style_designator	SINGLE ROW, ONE-DIRECTION LOCATING, TWO LIP INNER RING, ONE LIP OUTER RING, SEPARABLE
internal_clearance	0.0026 INCHES MINIMUM RADIAL AND 0.0036 INCHES MAXIMUM RADIAL IN
overall_outside_diameter	2.9528 INCHES NOMINAL IN
retainer_fabrication_method	MACHINED
standard_tolerance_designation	RBEC NO.5
NSN	3110-01-009-9822

COMPONENT DIAGRAM

KEY FEATURES

•

RETAINER FABRICATION METHOD: MACHINED

•

INTERNAL CLEARANCE: 0.0026 INCHES MINIMUM RADIAL AND 0.0036 INCHES MAXIMUM RADIAL IN

•

LOCATING FEATURE: NONLOCATING

•

SURFACE FINISH: GROUND

•

STYLE DESIGNATOR: SINGLE ROW, ONE-DIRECTION LOCATING, TWO LIP INNER RING, ONE LIP OUTER RING, SEPARABLE

•

OVERALL OUTSIDE DIAMETER: 2.9528 INCHES NOMINAL IN

•

BORE SHAPE: STRAIGHT

TECHNICAL CHARACTERISTICS

RETAINER FABRICATION METHOD	MACHINED
INTERNAL CLEARANCE	0.0026 INCHES MINIMUM RADIAL AND 0.0036 INCHES MAXIMUM RADIAL IN
LOCATING FEATURE	NONLOCATING
SURFACE FINISH	GROUND
STYLE DESIGNATOR	SINGLE ROW, ONE-DIRECTION LOCATING, TWO LIP INNER RING, ONE LIP OUTER RING, SEPARABLE
OVERALL WIDTH	16.0 MILLIMETERS NOMINAL MM
OVERALL OUTSIDE DIAMETER	2.9528 INCHES NOMINAL IN
BORE SHAPE	STRAIGHT
STANDARD TOLERANCE DESIGNATION	RBEC NO.5
BORE DIAMETER	1.7717 INCHES NOMINAL IN

SUBSTITUTES & CROSS-REFERENCES 6

770609Same NSN cross-reference

Same NSN cross-reference

Also cataloged under this NSN

782870Same NSN cross-reference

Same NSN cross-reference

Also cataloged under this NSN

446748Reference document

Same NSN cross-reference

Reference document — Secondary reference

770448Same NSN cross-reference

Same NSN cross-reference

Also cataloged under this NSN

781130Same NSN cross-reference

Same NSN cross-reference

Also cataloged under this NSN

RFZ-109-W46Same 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 demandDemilitarization required — critical (Q)

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FREQUENTLY ASKED QUESTIONS

What is 778448?

778448 is a BEARING,ROLLER,CYLINDRICAL.

What parts can replace 778448?

There are 6 known substitutes for 778448: 770609, 782870, 446748 and 3 more. Substitute compatibility should be verified for your specific system.

What is the NSN for 778448?

778448 is cataloged in the U.S. Government catalog under NSN 3110-01-009-9822. This indicates validated use in U.S. government and defense supply chains.

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778448 — BEARING,ROLLER,CYLINDRICAL

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