PartsTable
Technical Data Sheet
PartsTable / COMPONENT / ZB2108
ZB2108 ✓ Verified by PartsTable
— · BALL BEARING
WHAT YOU NEED TO KNOW
2RS = sealed for life, ZZ = shielded re-greaseable ABEC grade: higher = tighter tolerance
ABEC-1 standard, ABEC-7+ for precision spindles
PRODUCT OVERVIEW

The BEARING UNIT,ROLLER is a the manufacturer industrial component. Key specifications include material: STEEL INNER LINER, seal_type: LABYRINTH, bore_diameter: 1.5000 INCHES NOMINAL IN, seal_location: BOTH ENDS, alignment_type: SELF-ALIGNING, housing_length: 2.2500 INCHES NOMINAL IN. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 3130-00-076-8573, 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
ZB2108
NSN: 3130-00-076-8573
FSC: 3130
CAGE: 77896 — REXNORD INDUSTRIES, LLC DIV AEROSSPACE BEARING OPERATION (USA)
SPECIFICATIONS
materialSTEEL INNER LINER
seal_typeLABYRINTH
bore_diameter1.5000 INCHES NOMINAL IN
seal_locationBOTH ENDS
alignment_typeSELF-ALIGNING
housing_length2.2500 INCHES NOMINAL IN
collar_locationONE END
flange_thickness0.6250 INCHES NOMINAL IN
housing_diameter6.2500 INCHES NOMINAL IN
style_designatorFLANGE BLOCK
features_providedGROUND ROLLING ELEMENT GROOVE
mounting_hole_typeROUND, UNTHREADED
NSN3130-00-076-8573
COMPONENT DIAGRAM
BALL BEARING — SEAL TYPE DETERMINES MAINTENANCE OD: — · BORE: — · WIDTH: — SEAL: Open · PN: ZB2108 · 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 LOCATION: BOTH ENDS
•
ROLLING ELEMENT GROOVE QUANTITY: 2
•
STYLE DESIGNATOR: FLANGE BLOCK
•
LUBRICATION FITTING ANGLE FROM HORIZONTAL CENTERLINE: 45.0 DEGREES NOMINAL
•
MATERIAL: STEEL INNER LINER
•
FLANGE THICKNESS: 0.6250 INCHES NOMINAL IN
•
ROTATING ELEMENT LOCKING METHOD: DIRECT
•
MOUNTING HOLE DIAMETER: 0.5312 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
SEAL LOCATIONBOTH ENDS
ROLLING ELEMENT GROOVE QUANTITY2
STYLE DESIGNATORFLANGE BLOCK
LUBRICATION FITTING ANGLE FROM HORIZONTAL CENTERLINE45.0 DEGREES NOMINAL
MATERIALSTEEL INNER LINER
FLANGE THICKNESS0.6250 INCHES NOMINAL IN
ROTATING ELEMENT LOCKING METHODDIRECT
MOUNTING HOLE DIAMETER0.5312 INCHES NOMINAL IN
INTERNAL FIT-UP DESIGNATIONSTANDARD
HOUSING DIAMETER6.2500 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 11
Q62702S170ZInterchangeable
interchangeable cross-reference
interchangeable
52-725-004Interchangeable
interchangeable cross-reference
interchangeable
947092-9071Interchangeable
interchangeable cross-reference
interchangeable
A-A-1925Interchangeable
interchangeable cross-reference
interchangeable
2542Interchangeable
interchangeable cross-reference
interchangeable
F424Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is ZB2108?
ZB2108 is a BEARING UNIT,ROLLER.
What parts can replace ZB2108?
There are 11 known substitutes for ZB2108: Q62702S170Z, 52-725-004, 947092-9071 and 8 more. Substitute compatibility should be verified for your specific system.
Is ZB2108 still available?
ZB2108 is currently cancelled.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026