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Double-Row Precision BearingsAircraft BearingsDouble Sealed

MKP8FS428

d 12.7 × D 42.863 × B 15.748 mm

The MKP8FS428 is an aircraft bearing with bore 12.7mm, outer diameter 42.863mm, and width 15.748mm.

Original catalog dimensions: 0.50 × 1.69 × 0.62 in. Metric values are converted using 25.4 mm/in.

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MKP8FS428 — representative product photo
Representative product
MKP8FS428 · 12.7x42.863x15.748 mm

📋 Technical Specifications

Bore (d)
12.7mm
Outer Dia. (D)
42.863mm
Width (B)
15.748mm
Radial Limit Load
11,800 lbf(52.49 kN)
Axial Limit Load
5,200 lbf(23.13 kN)
Reference Speed
500rpm
Load ratings basisReference values from the standard airframe-control bearing catalog for this size series: static radial and axial limit loads above; dynamic radial rating 9,320 lbf with the inner ring rotating and 7,700 lbf with the outer ring rotating, based on 10,000 complete 90° oscillation cycles. Ratings for your order are confirmed against drawing and application.
Bearing typeAircraft Bearings
SeriesDouble-Row Precision Bearings
Standard referenceMS27640-8RG (MS27640 heavy-duty single-row radial series) — dimensional reference
Seal typeDouble Sealed
MaterialConfirmed per inquiry — grade and certificate availability reviewed before quotation
Bore typeRound
Original catalog dimensions0.50 × 1.69 × 0.62 in
Dimension unitmillimeter (mm) display; original catalog dimensions in inch

📐 Detailed Dimensions

Basic dimensions (mm)

Bore diameter (d)12.7
Outer diameter (D)42.863
Width (B)15.748

Corner radius, shoulder dimensions, fits and tolerances are confirmed against the requested suffix and application drawing before quotation.

📑 Drawings & 3D Model

MKP8FS428 bearing dimension drawing, 12.7 x 42.863 x 15.748 mm
MKP8FS428 dimension drawing: bore d 12.7 mm × outer diameter D 42.863 mm × inner-ring width B 15.748 mm; outer-ring width C 12.7 mm. Internal design is shown schematically.
📑
2D Drawing (PDF)
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📐
2D DXF File
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📅
3D STEP Model
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The PDF drawing is free to download. DXF and 3D STEP files are sent on request: tell us the model and your application, and we reply with the CAD files.

⚡ Source-Data Reference Speed

Catalog reference
500 rpm

Lubrication method and application speed limit are confirmed per inquiry; no oil-speed value is derived from this number.

⇄ Same-size Bearings & Reference Options

Standard reference: MS27640-8RG. This size corresponds to the boundary dimensions of the MS27640 heavy-duty single-row radial series. NLHB supplies it for industrial use; it is not supplied as an airworthiness-certified aerospace part.

The models below share the 12.7x42.863x15.748 mm boundary dimensions. Matching d/D/B alone does not prove interchangeability; verify seals, clearance, ring features, load ratings, fits, and application conditions before replacement.

ModelRelationshipSeriesSealAction
KP8FS428Same boundary dimensions — verify fit/loadRadialsDouble SealedQuote →
KP8FS464Same boundary dimensions — verify fit/loadRadialsDouble SealedQuote →
KSP8FS428Same boundary dimensions — verify fit/loadRoller BearingsDouble SealedQuote →
KSP8FS464Same boundary dimensions — verify fit/loadRoller BearingsDouble SealedQuote →
MKP8FS464Same boundary dimensions — verify fit/loadDouble-Row Precision BearingsDouble SealedQuote →

⚙ Typical Applications

Aircraft landing gear
Flight control systems
Aerospace mechanisms
Jet engine accessories
Helicopter components

Why choose NLHB?

NLHB supports both in-house manufacturing and qualified partner sourcing. We confirm the specification, supply route, inspection requirements, and available documentation before quotation.

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Models
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Specification Confirmed

❓ Frequently Asked Questions

What are the dimensions of MKP8FS428?
The MKP8FS428 bearing has bore (d) = 12.7 mm, outer diameter (D) = 42.863 mm, and width (B) = 15.748 mm.
Is there a MKP8FS428 drawing or CAD file?
Yes. The MKP8FS428 dimension drawing (PDF) is free to download on this page. DXF and 3D STEP files are sent on request: tell us the model and your application.
What is the load rating of MKP8FS428?
Reference values for the MKP8FS428 size series from the standard airframe-control bearing catalog: radial limit load 11,800 lbf (52.49 kN), axial limit load 5,200 lbf (23.13 kN); dynamic radial rating 9,320 lbf with the inner ring rotating and 7,700 lbf with the outer ring rotating (10,000 complete 90° oscillation cycles). Ratings for your order are confirmed against drawing and application.
What bearing series does MKP8FS428 belong to?
The MKP8FS428 belongs to the Double-Row Precision Bearings within the Aircraft Bearings category.
Can NLHB supply MKP8FS428 equivalents from other brands?
Depending on the model and order requirements, NLHB may manufacture in-house or source through qualified partner factories. Interchange and supply route are confirmed against your specification before quotation. All trademarks belong to their respective owners.
How do I order MKP8FS428 from NLHB?
Click "Request Quote" and send us your quantity, application, and required specifications. We review the specification, supply route, lead time, and pricing before issuing a quotation. Response time depends on specification complexity.
What materials are available for MKP8FS428?
Material grade is confirmed per inquiry. Availability depends on the model, quantity, application, and whether the order is manufactured in-house or sourced through a qualified partner factory. Material certificates or inspection documents are confirmed before quotation when required.

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