PartsTable
Technical Data Sheet
B87 ✓ 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

RESISTOR,VARIABLE,NONWIRE WOUND,. Key specifications include angle: 42.0 DEGREES, material: COPPER OVERALL, thickness: 0.014 INCHES MINIMUM AND 0.018 INCHES MAXIMUM IN, bore_diameter: 0.5000 INCHES NOMINAL IN, hole_diameter: 0.250 INCHES MINIMUM AND 0.260 INCHES MAXIMUM IN, nominal_width: 0.656 INCHES IN. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 3110-00-120-3083, 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
B87
NSN: 3110-00-120-3083
FSC: 3110
CAGE: 60380 — TIMKEN AEROSPACE, INC DBA TORRINGTON PRODUCT (USA)
SPECIFICATIONS
angle42.0 DEGREES
materialCOPPER OVERALL
thickness0.014 INCHES MINIMUM AND 0.018 INCHES MAXIMUM IN
bore_diameter0.5000 INCHES NOMINAL IN
hole_diameter0.250 INCHES MINIMUM AND 0.260 INCHES MAXIMUM IN
nominal_width0.656 INCHES IN
overall_width0.310 INCHES IN
alignment_typeRIGID
overall_length0.730 INCHES IN
overall_diameter0.365 INCHES MINIMUM AND 0.385 INCHES MAXIMUM IN
style_designatorPLAIN
basic_shape_styleCRIMP
NSN3110-00-120-3083
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: B87 · 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
OVERALL OUTSIDE DIAMETER: 0.6875 INCHES NOMINAL IN
BORE DIAMETER: 0.5000 INCHES NOMINAL IN
STANDARD TOLERANCE DESIGNATION: AFBMA STD TOLERANCE FOR INDUSTRIAL NEEDLE BEARINGS
STYLE DESIGNATOR: NON-SEPARABLE, OPEN END, DRAWN SHELL
ALIGNMENT TYPE: RIGID
TECHNICAL CHARACTERISTICS (FLIS)
OVERALL OUTSIDE DIAMETER0.6875 INCHES NOMINAL IN
BORE DIAMETER0.5000 INCHES NOMINAL IN
STANDARD TOLERANCE DESIGNATIONAFBMA STD TOLERANCE FOR INDUSTRIAL NEEDLE BEARINGS
OVERALL WIDTH0.4375 INCHES NOMINAL IN
STYLE DESIGNATORNON-SEPARABLE, OPEN END, DRAWN SHELL
ALIGNMENT TYPERIGID
VERIFIED SUBSTITUTES & CROSS-REFERENCES 19
A11917Interchangeable
interchangeable cross-reference
interchangeable
11917Interchangeable
interchangeable cross-reference
interchangeable
B87Interchangeable
interchangeable cross-reference
interchangeable
47-107Interchangeable
interchangeable cross-reference
interchangeable
JA1N048P103Interchangeable
interchangeable cross-reference
interchangeable
401428-1Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is B87?
B87 is a RESISTOR,VARIABLE,NONWIRE WOUND,.
What parts can replace B87?
There are 19 known substitutes for B87: A11917, 11917, B87 and 16 more. Substitute compatibility should be verified for your specific system.
Is B87 still available?
B87 is currently cancelled.
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