PartsTable
Technical Data Sheet
PartsTable / COMPONENT / 878902
878902 ✓ 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,MAIN DRIVE is a the manufacturer industrial component. Key specifications include material: STEEL CASE, case_style: SQUARE, seal_width: 0.500 INCHES NOMINAL IN, housing_bore_diameter: 2.686 INCHES NOMINAL IN, sealing_element_style: ANGULAR, accommodated_shaft_diameter: 1.938 INCHES NOMINAL IN. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 3120-00-257-3199, 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
878902
NSN: 3120-00-257-3199
FSC: 3120
CAGE: 62265 — VOLVO TRUCKS NORTH AMERICA, INC. DBA (FOREIGN PARENT IS VOLVO LASTVAGNAR AB, GOTEBORG, SWEDEN.) (USA)
SPECIFICATIONS
materialSTEEL CASE
case_styleSQUARE
seal_width0.500 INCHES NOMINAL IN
housing_bore_diameter2.686 INCHES NOMINAL IN
sealing_element_styleANGULAR
accommodated_shaft_diameter1.938 INCHES NOMINAL IN
accommodated_shaft_maximum_rated_speed3000 FEET PER MINUTE FT
NSN3120-00-257-3199
COMPONENT DIAGRAM
BALL BEARING — SEAL TYPE DETERMINES MAINTENANCE OD: — · BORE: — · WIDTH: — SEAL: Open · PN: 878902 · 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
VERIFIED SUBSTITUTES & CROSS-REFERENCES 5
49116304Interchangeable
interchangeable cross-reference
interchangeable
0927023-2Interchangeable
interchangeable cross-reference
interchangeable
78016Interchangeable
interchangeable cross-reference
interchangeable
878902Interchangeable
interchangeable cross-reference
interchangeable
45-878902Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
Ready to buy 878902?
Compare prices from verified sellers on eBay
Buy on eBay →
As an eBay Partner, PartsTable may earn a commission. Your price is not affected.
FREQUENTLY ASKED QUESTIONS
What is 878902?
878902 is a BEARING,MAIN DRIVE.
What parts can replace 878902?
There are 5 known substitutes for 878902: 49116304, 0927023-2, 78016 and 2 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 878902?
878902 is cataloged in the Federal Logistics Information System (FLIS) under NSN 3120-00-257-3199. This indicates validated use in U.S. government and defense supply chains.
Community Feedback
Comments (0)
No comments yet. Be the first to share what you know.
Leave a Comment
Comments are reviewed before appearing. You will receive an email to verify before your comment appears.

Request a Quote — 878902

✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026