4B8108 — BEARING,ROLLER,CYLINDRICAL

✓ Government record, cited

— · TAPERED BEARING

PRODUCT OVERVIEW

4B8108: BEARING,ROLLER,CYLINDRICAL.

The BEARING,ROLLER,CYLINDRICAL is a the manufacturer industrial component. Key specifications include material: STEEL ROLLER, bore_shape: STRAIGHT, bore_diameter: 45.00 MILLIMETERS NOMINAL MM, overall_width: 19.00 MILLIMETERS NOMINAL MM, surface_finish: GROUND, locating_feature: NONLOCATING. This part is cataloged in the U.S.

Government catalog under NSN 3110-00-117-0682, 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

4B8108

NSN: 3110-00-117-0682
FSC: 3110 — Bearings, Antifriction, Unmounted
CAGE: 11083 — CATERPILLAR INC DIV CATERPILLAR DEFENSE (USA)

SPECIFICATIONS

material	STEEL ROLLER
bore_shape	STRAIGHT
bore_diameter	45.00 MILLIMETERS NOMINAL MM
overall_width	19.00 MILLIMETERS NOMINAL MM
surface_finish	GROUND
locating_feature	NONLOCATING
special_features	INNER RING AND ROLLER ASSY,NO OUTER RING
internal_fit-up_designation	STANDARD
standard_tolerance_designation	RBEC NO.1
NSN	3110-00-117-0682

COMPONENT DIAGRAM

KEY FEATURES

•

INTERNAL FIT-UP DESIGNATION: STANDARD

•

LOCATING FEATURE: NONLOCATING

•

SURFACE FINISH: GROUND

•

BORE SHAPE: STRAIGHT

•

STANDARD TOLERANCE DESIGNATION: RBEC NO.1

•

BORE DIAMETER: 45.00 MILLIMETERS NOMINAL MM

TECHNICAL CHARACTERISTICS

INTERNAL FIT-UP DESIGNATION	STANDARD
LOCATING FEATURE	NONLOCATING
SURFACE FINISH	GROUND
OVERALL WIDTH	19.00 MILLIMETERS NOMINAL MM
BORE SHAPE	STRAIGHT
SPECIAL FEATURES	INNER RING AND ROLLER ASSY,NO OUTER RING
STANDARD TOLERANCE DESIGNATION	RBEC NO.1
BORE DIAMETER	45.00 MILLIMETERS NOMINAL MM
MATERIAL	STEEL INNER RING
MATERIAL	STEEL ROLLER

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

BU1209Same NSN cross-reference

Same NSN cross-reference

Also cataloged under this NSN

BU2&1209Reference document

Same NSN cross-reference

Reference document — Advisory reference — outside the item-of-supply concept

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 4B8108?

4B8108 is a BEARING,ROLLER,CYLINDRICAL.

What parts can replace 4B8108?

There are 2 known substitutes for 4B8108: BU1209, BU2&1209. Substitute compatibility should be verified for your specific system.

What is the NSN for 4B8108?

4B8108 is cataloged in the U.S. Government catalog under NSN 3110-00-117-0682. This indicates validated use in U.S. government and defense supply chains.

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4B8108 — BEARING,ROLLER,CYLINDRICAL

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