PartsTable
Technical Data Sheet
PartsTable / COMPONENT / GR-28
GR-28 ✓ Verified by PartsTable
— · TAPERED BEARING
WHAT YOU NEED TO KNOW
Cup and cone sold separately — confirm both needed Timken series numbers indicate dimensions
Cup and cone NOT sold as set — verify order
PRODUCT OVERVIEW

HOUSING PART,TRANSMISSION,MECHAN. Key specifications include width: 4.500 INCHES NOMINAL IN, length: 9.000 INCHES NOMINAL IN, material: STEEL OVERALL, slot_length: 1.000 INCHES NOMINAL IN, circuit_type: PARALLEL, power_rating: 90.000 WATTS NOMINAL. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 3110-00-120-4371, 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
GR-28
NSN: 3110-00-120-4371
FSC: 3110
CAGE: 39317 — MCGILL MANUFACTURING COMPANY INC USE CAGE CODE 92563 FOR CATALOGING. (USA)
SPECIFICATIONS
width4.500 INCHES NOMINAL IN
length9.000 INCHES NOMINAL IN
materialSTEEL OVERALL
slot_length1.000 INCHES NOMINAL IN
circuit_typePARALLEL
power_rating90.000 WATTS NOMINAL
bore_diameter1.2500 INCHES NOMINAL IN
overall_width4.380 INCHES NOMINAL IN
alignment_typeRIGID
overall_height4.125 INCHES NOMINAL IN
overall_length5.530 INCHES NOMINAL IN
minor_thickness2.000 INCHES NOMINAL IN
NSN3110-00-120-4371
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: GR-28 · OEM ⚠ VERIFY BEFORE ORDERING Cup and cone sold separately — verify you are ordering BOTH parts or the correct component. Always replace cup and cone together — mismatched wear = premature failure ✓ BROKER TIP Taper angle determines axial load capacity. Steeper angle = higher axial load rating. Timken series numbers indicate dimensions — cross-reference carefully PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
•
STANDARD TOLERANCE DESIGNATION: AFBMA STD TOLERANCE FOR INDUSTRIAL NEEDLE BEARINGS
•
BORE DIAMETER: 1.2500 INCHES NOMINAL IN
•
STYLE DESIGNATOR: NON-SEPARABLE, WITH ROLLER RETAINER, HARDENED AND GROUND
•
MATERIAL: STEEL OVERALL
•
OVERALL OUTSIDE DIAMETER: 2.3125 INCHES NOMINAL IN
•
ALIGNMENT TYPE: RIGID
TECHNICAL CHARACTERISTICS (FLIS)
STANDARD TOLERANCE DESIGNATIONAFBMA STD TOLERANCE FOR INDUSTRIAL NEEDLE BEARINGS
OVERALL WIDTH1.7500 INCHES NOMINAL IN
BORE DIAMETER1.2500 INCHES NOMINAL IN
STYLE DESIGNATORNON-SEPARABLE, WITH ROLLER RETAINER, HARDENED AND GROUND
MATERIALSTEEL OVERALL
OVERALL OUTSIDE DIAMETER2.3125 INCHES NOMINAL IN
ALIGNMENT TYPERIGID
SPECIAL FEATURESOIL HOLE AND GROOVE IN OUTER RACE
VERIFIED SUBSTITUTES & CROSS-REFERENCES 28
7315Interchangeable
interchangeable cross-reference
interchangeable
315ZInterchangeable
interchangeable cross-reference
interchangeable
0607835Interchangeable
interchangeable cross-reference
interchangeable
XA327Interchangeable
interchangeable cross-reference
interchangeable
375ACDInterchangeable
interchangeable cross-reference
interchangeable
160885Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is GR-28?
GR-28 is a HOUSING PART,TRANSMISSION,MECHAN.
What parts can replace GR-28?
There are 28 known substitutes for GR-28: 7315, 315Z, 0607835 and 25 more. Substitute compatibility should be verified for your specific system.
Is GR-28 still available?
GR-28 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