NLHB BEARINGS
Double-Row Precision BearingsAircraft BearingsDouble Sealed

MKSP4AFS428

d 6.35 × D 19.05 × B 7.137 mm

The MKSP4AFS428 is an aircraft bearing with bore 6.35mm, outer diameter 19.05mm, and width 7.137mm.

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

MKSP4AFS428 — representative product photo
Representative product
MKSP4AFS428 · 6.35x19.05x7.137 mm

📋 Technical Specifications

Bore (d)
6.35mm
Outer Dia. (D)
19.05mm
Width (B)
7.137mm
Radial Limit Load
900 lbf(4.00 kN)
Axial Limit Load
200 lbf(0.89 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 900 lbf with the inner ring rotating and 770 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 dimensions0.25 × 0.75 × 0.281 in
Dimension unitmillimeter (mm) display; original catalog dimensions 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

MKSP4AFS428 bearing dimension drawing, 6.35 x 19.05 x 7.137 mm
MKSP4AFS428 dimension drawing: bore d 6.35 mm × outer diameter D 19.05 mm × inner-ring width B 7.137 mm; outer-ring width C 5.56 mm. Internal design is shown schematically.
📑
2D Drawing (PDF)
Download PDF →
📐
2D DXF File
Request DXF →
📅
3D STEP Model
Request STEP →

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 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.

ModelRelationshipSeriesSealAction
KP4ASame boundary dimensions — verify fit/loadDouble-Row Standard BearingsOpenQuote →
KP4AFS428Same boundary dimensions — verify fit/loadRadialsDouble SealedQuote →
KP4AFS464Same boundary dimensions — verify fit/loadRadialsDouble SealedQuote →
KSP4AFS428Same boundary dimensions — verify fit/loadRoller BearingsDouble SealedQuote →
KSP4AFS464Same boundary dimensions — verify fit/loadRoller BearingsDouble SealedQuote →
MKP4AFS428Same boundary dimensions — verify fit/loadDouble-Row Precision BearingsDouble SealedQuote →
MKP4AFS464Same boundary dimensions — verify fit/loadDouble-Row Precision BearingsDouble SealedQuote →
MKSP4AFS464Same boundary dimensions — verify fit/loadDouble-Row Precision BearingsDouble SealedQuote →

🔄 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 →
4,300+
Models
15+
Years
RFQ
Specification Confirmed

❓ Frequently Asked Questions

What are the dimensions of MKSP4AFS428?
The MKSP4AFS428 bearing has bore (d) = 6.35 mm, outer diameter (D) = 19.05 mm, and width (B) = 7.137 mm.
Is there a MKSP4AFS428 drawing or CAD file?
Yes. The MKSP4AFS428 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 MKSP4AFS428?
Reference values for the MKSP4AFS428 size series from the standard airframe-control bearing catalog: radial limit load 900 lbf (4.00 kN), axial limit load 200 lbf (0.89 kN); dynamic radial rating 900 lbf with the inner ring rotating and 770 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 MKSP4AFS428 belong to?
The MKSP4AFS428 belongs to the Double-Row Precision Bearings within the Aircraft Bearings category.
Can NLHB supply MKSP4AFS428 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 MKSP4AFS428 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 MKSP4AFS428?
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 MKSP4AFS428

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

Request Quote →
Inquiry List 0

Your Inquiry List

Submit All as Quote →