BS221121 — BEARING UNIT,ROLLER

✓ Government record, cited

— · BALL BEARING

PRODUCT OVERVIEW

BS221121: BEARING UNIT,ROLLER.

The BEARING UNIT,ROLLER is a the manufacturer industrial component. Key specifications include material: IRON CAST HOUSING, seal_type: LABYRINTH, base_length: 2.6900 INCHES NOMINAL IN, bore_diameter: 2.4375 INCHES NOMINAL IN, housing_width: 9.2500 INCHES NOMINAL IN, seal_location: BOTH ENDS. This part is cataloged in the U.S.

Government catalog under NSN 3130-00-059-9077, 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

BS221121

NSN: 3130-00-059-9077
FSC: 3130 — Bearings, Mounted
CAGE: 19382 — REXNORD INDUSTRIES, LLC DIV LINK-BELT BEARING OPERATION (USA)

SPECIFICATIONS

material	IRON CAST HOUSING
seal_type	LABYRINTH
base_length	2.6900 INCHES NOMINAL IN
bore_diameter	2.4375 INCHES NOMINAL IN
housing_width	9.2500 INCHES NOMINAL IN
seal_location	BOTH ENDS
alignment_type	SELF-ALIGNING
base_thickness	1.7500 INCHES NOMINAL IN
housing_height	5.5000 INCHES NOMINAL IN
collar_location	ONE END
special_features	SPECIAL FIT OF BEARING IN HOUSING
style_designator	PILLOW BLOCK, SOLID
NSN	3130-00-059-9077

COMPONENT DIAGRAM

KEY FEATURES

•

SEAL TYPE: LABYRINTH

•

LUBRICATION FITTING TYPE: HYDRAULIC

•

ASSEMBLY OVERALL LENGTH: 3.5000 INCHES NOMINAL IN

•

HOUSING HEIGHT: 5.5000 INCHES NOMINAL IN

•

INTERNAL FIT-UP DESIGNATION: STANDARD

•

MOUNTING HOLE TYPE: ROUND, UNTHREADED

•

ROTATING ELEMENT LOCKING METHOD: SETSCREW LOCKING COLLAR

•

SEAL LOCATION: BOTH ENDS

TECHNICAL CHARACTERISTICS

SEAL TYPE	LABYRINTH
LUBRICATION FITTING TYPE	HYDRAULIC
ASSEMBLY OVERALL LENGTH	3.5000 INCHES NOMINAL IN
HOUSING HEIGHT	5.5000 INCHES NOMINAL IN
INTERNAL FIT-UP DESIGNATION	STANDARD
MOUNTING HOLE TYPE	ROUND, UNTHREADED
ROTATING ELEMENT LOCKING METHOD	SETSCREW LOCKING COLLAR
SEAL LOCATION	BOTH ENDS
STYLE DESIGNATOR	PILLOW BLOCK, SOLID
MOUNTING HOLE DIAMETER	0.6875 INCHES NOMINAL IN

OTHER ITEMS IN FSC 3130 — Bearings, Mounted

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

3130-00-001-5118 3130-00-001-5137 3130-00-001-6585 3130-00-003-0422 3130-00-003-0455 3130-00-003-0794 3130-00-003-2802 3130-00-003-9535

SUBSTITUTES & CROSS-REFERENCES 4

2158-131Reference document

Same NSN cross-reference

Reference document — Secondary reference

BS212067Same NSN cross-reference

Same NSN cross-reference

Also cataloged under this NSN

2158-1032Reference document

Same NSN cross-reference

Reference document — Secondary reference

2204-161REVCReference document

Same NSN cross-reference

Reference document — Secondary reference

LIFECYCLE

NSN statusActive· U.S. Government catalog

Acquisition advice: Terminal item — stock exhausted; no further procurementNo demilitarization required

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FREQUENTLY ASKED QUESTIONS

What is BS221121?

BS221121 is a BEARING UNIT,ROLLER.

What parts can replace BS221121?

There are 4 known substitutes for BS221121: 2158-131, BS212067, 2158-1032 and 1 more. Substitute compatibility should be verified for your specific system.

What is the NSN for BS221121?

BS221121 is cataloged in the U.S. Government catalog under NSN 3130-00-059-9077. This indicates validated use in U.S. government and defense supply chains.

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