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Double-Row Precision BearingsAircraft BearingsDouble Sealed

MKSP5FS428

d 7.938 × D 31.75 × B 14.173 mm

The MKSP5FS428 is an aircraft bearing with bore 7.938mm, outer diameter 31.75mm, and width 14.173mm.

Original catalog dimensions: 0.31 × 1.25 × 0.558 in. Metric values are converted using 25.4 mm/in.

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MKSP5FS428 — representative product photo
Representative product
MKSP5FS428 · 7.938x31.75x14.173 mm

📋 Technical Specifications

Bore (d)
7.938mm
Outer Dia. (D)
31.75mm
Width (B)
14.173mm
Radial Limit Load
2,190 lbf(9.74 kN)
Axial Limit Load
300 lbf(1.33 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 2,190 lbf with the inner ring rotating and 1,890 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
Seal typeDouble Sealed
MaterialConfirmed per inquiry — grade and certificate availability reviewed before quotation
Bore typeRound
Original catalog dimensions0.31 × 1.25 × 0.558 in
Dimension unitmillimeter (mm) display; original catalog dimensions in inch

📐 Detailed Dimensions

Basic dimensions (mm)

Bore diameter (d)7.938
Outer diameter (D)31.75
Width (B)14.173

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

📑 Drawings & 3D Model

MKSP5FS428 bearing dimension drawing, 7.938 x 31.75 x 14.173 mm
MKSP5FS428 dimension drawing: bore d 7.938 mm × outer diameter D 31.75 mm × inner-ring width B 14.173 mm; outer-ring width C 9.52 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

The models below share the 7.938x31.75x14.173 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
KP5FS428Same boundary dimensions — verify fit/loadRadialsDouble SealedQuote →
KP5FS464Same boundary dimensions — verify fit/loadRadialsDouble SealedQuote →
KSP5FS428Same boundary dimensions — verify fit/loadRoller BearingsDouble SealedQuote →
KSP5FS464Same boundary dimensions — verify fit/loadRoller BearingsDouble SealedQuote →
MKP5FS428Same boundary dimensions — verify fit/loadDouble-Row Precision BearingsDouble SealedQuote →
MKP5FS464Same boundary dimensions — verify fit/loadDouble-Row Precision BearingsDouble SealedQuote →
MKSP5FS464Same 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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Specification Confirmed

❓ Frequently Asked Questions

What are the dimensions of MKSP5FS428?
The MKSP5FS428 bearing has bore (d) = 7.938 mm, outer diameter (D) = 31.75 mm, and width (B) = 14.173 mm.
Is there a MKSP5FS428 drawing or CAD file?
Yes. The MKSP5FS428 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 MKSP5FS428?
Reference values for the MKSP5FS428 size series from the standard airframe-control bearing catalog: radial limit load 2,190 lbf (9.74 kN), axial limit load 300 lbf (1.33 kN); dynamic radial rating 2,190 lbf with the inner ring rotating and 1,890 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 MKSP5FS428 belong to?
The MKSP5FS428 belongs to the Double-Row Precision Bearings within the Aircraft Bearings category.
Can NLHB supply MKSP5FS428 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 MKSP5FS428 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 MKSP5FS428?
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.

Get a quote for MKSP5FS428

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