Double-Row Precision BearingsAircraft BearingsDouble Sealed

MKP4AFS428

d 6.35 × D 19.05 × B 7.137 mm

The MKP4AFS428 is an aircraft bearing with bore 6.35mm, outer diameter 19.05mm, and width 7.137mm.

Original RBC catalog dimensions: 0.25 × 0.75 × 0.281 in. Metric values are converted using 25.4 mm/in.

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MKP4AFS428 — representative product photo — Representative product

MKP4AFS428 · 6.35x19.05x7.137 mm

📋 Technical Specifications

Bore (d)

6.35mm

Outer Dia. (D)

19.05mm

Width (B)

7.137mm

Dynamic Load (Cr)

Confirm per inquiry(— N)

Static Load (C0r)

Confirm per inquiry(— N)

Reference Speed

500rpm

Bearing type	Aircraft Bearings
Series	Double-Row Precision Bearings
Seal type	Double Sealed
Material	Confirmed per inquiry — grade and certificate availability reviewed before quotation
Bore type	Round
Original catalog dimensions	0.25 × 0.75 × 0.281 in
Dimension unit	millimeter (mm) display; RBC source in inch

📐 Detailed Dimensions

Basic dimensions (mm)

Bore diameter (d)	6.35
Outer diameter (D)	19.05
Width (B)	7.137

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

📑 Drawings & 3D Model

📑

2D Drawing

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📅

3D STEP Model

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🔎

CAD File

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Drawings and 3D models are provided per inquiry. Tell us your application and we will send the appropriate file format (DXF, DWG, STEP, IGES).

⚡ 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 6.35x19.05x7.137 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.

Model	Relationship	Series	Seal	Action
KP4A	Same boundary dimensions — verify fit/load	Double-Row Standard Bearings	Open	Quote →
KP4AFS428	Same boundary dimensions — verify fit/load	Radials	Double Sealed	Quote →
KP4AFS464	Same boundary dimensions — verify fit/load	Radials	Double Sealed	Quote →
KSP4AFS428	Same boundary dimensions — verify fit/load	Roller Bearings	Double Sealed	Quote →
KSP4AFS464	Same boundary dimensions — verify fit/load	Roller Bearings	Double Sealed	Quote →
MKP4AFS464	Same boundary dimensions — verify fit/load	Double-Row Precision Bearings	Double Sealed	Quote →
MKSP4AFS428	Same boundary dimensions — verify fit/load	Double-Row Precision Bearings	Double Sealed	Quote →
MKSP4AFS464	Same boundary dimensions — verify fit/load	Double-Row Precision Bearings	Double Sealed	Quote →

🔄 Related Models

Same bearing family or similar dimensions.

Similar size — reference only, verify all interfaces

⚙ 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.

About NLHB →

4,315

Catalog Models

15+

Years

RFQ

Specification Confirmed

❓ Frequently Asked Questions

What are the dimensions of MKP4AFS428?

The MKP4AFS428 bearing has bore (d) = 6.35 mm, outer diameter (D) = 19.05 mm, and width (B) = 7.137 mm.

What is the load rating of MKP4AFS428?

Load rating data is being updated. Please request a quote for current specifications.

What bearing series does MKP4AFS428 belong to?

The MKP4AFS428 belongs to the Double-Row Precision Bearings within the Aircraft Bearings category.

Can NLHB supply MKP4AFS428 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 MKP4AFS428 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 MKP4AFS428?

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 MKP4AFS428

Send us your quantity, application and target lead time. We confirm spec, interchange and realistic delivery — no order confirmed until you approve.

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