PartsTable
Technical Data Sheet

SYR 2-3/4 — BEARING UNIT,ROLLER

✓ Government record, cited
— · BALL BEARING
PRODUCT OVERVIEW

SYR 2-3/4: BEARING UNIT,ROLLER.

The BEARING UNIT,ROLLER is a the manufacturer industrial component. Key specifications include material: STEEL BEARING, seal_type: LABYRINTH, block_type: FIXED, base_length: 2.563 INCHES NOMINAL IN, bore_diameter: 2.7501 INCHES MINIMUM AND 2.7507 INCHES MAXIMUM IN, housing_width: 10.438 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 3130-01-233-9837, 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
SYR 2-3/4
NSN: 3130-01-233-9837
FSC: 3130 — Bearings, Mounted
CAGE: 52676 — SKF USA INC. (USA)
SPECIFICATIONS
materialSTEEL BEARING
seal_typeLABYRINTH
block_typeFIXED
base_length2.563 INCHES NOMINAL IN
bore_diameter2.7501 INCHES MINIMUM AND 2.7507 INCHES MAXIMUM IN
housing_width10.438 INCHES NOMINAL IN
seal_locationBOTH ENDS
alignment_typeSELF-ALIGNING
base_thickness2.250 INCHES NOMINAL IN
housing_height6.438 INCHES NOMINAL IN
shaft_end_typeOPEN
collar_locationBOTH ENDS
NSN3130-01-233-9837
COMPONENT DIAGRAM
BALL BEARING — SEAL TYPE DETERMINES MAINTENANCE OD: — · BORE: — · WIDTH: — SEAL: Open · PN: SYR 2-3/4 · OEM ⚠ VERIFY BEFORE ORDERING ABEC grade: higher = tighter tolerance = higher cost. ABEC-1 is standard, ABEC-7+ for precision spindles. Open, shielded (ZZ), and sealed (2RS) versions have different max RPM ratings ✓ BROKER TIP 2RS = sealed for life (no maintenance). ZZ = shielded, re-greaseable. Open = must lubricate on install. Common interchange: 6205-2RS = 6205-2RSR = 6205-DDU (same bearing, different suffix) PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
•
SEAL TYPE: LABYRINTH
•
LUBRICATION MATERIAL: GREASE
•
LUBRICATION FITTING TYPE: HYDRAULIC
•
ASSEMBLY OVERALL LENGTH: 3.688 INCHES NOMINAL IN
•
HOUSING HEIGHT: 6.438 INCHES NOMINAL IN
•
MOUNTING SLOT LENGTH: 1.063 INCHES NOMINAL IN
•
INTERNAL FIT-UP DESIGNATION: STANDARD
•
MOUNTING HOLE TYPE: SLOTTEDSLOTTED
TECHNICAL CHARACTERISTICS
SEAL TYPELABYRINTH
LUBRICATION MATERIALGREASE
LUBRICATION FITTING TYPEHYDRAULIC
ASSEMBLY OVERALL LENGTH3.688 INCHES NOMINAL IN
HOUSING HEIGHT6.438 INCHES NOMINAL IN
MOUNTING SLOT LENGTH1.063 INCHES NOMINAL IN
INTERNAL FIT-UP DESIGNATIONSTANDARD
MOUNTING HOLE TYPESLOTTEDSLOTTED
ROTATING ELEMENT LOCKING METHODSETSCREW LOCKING COLLAR
SEAL LOCATIONBOTH ENDS
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 1
C12063-12Reference document
Same NSN cross-reference
Reference document — Vendor item drawing reference
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 SYR 2-3/4?
SYR 2-3/4 is a BEARING UNIT,ROLLER.
What parts can replace SYR 2-3/4?
There is 1 known substitute for SYR 2-3/4: C12063-12. Substitute compatibility should be verified for your specific system.
What is the NSN for SYR 2-3/4?
SYR 2-3/4 is cataloged in the U.S. Government catalog under NSN 3130-01-233-9837. 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.