RadialsAircraft Bearings

39KDD4

d 9.652 × D 25.908 × B 8.001 mm

The 39KDD4 is an aircraft bearing with bore 9.652mm, outer diameter 25.908mm, and width 8.001mm.

Original RBC catalog dimensions: 0.38 × 1.02 × 0.315 in. Metric values are converted using 25.4 mm/in.

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39KDD4 — representative product photo — Representative product

39KDD4 · 9.652x25.908x8.001 mm

📋 Technical Specifications

Bore (d)

9.652mm

Outer Dia. (D)

25.908mm

Width (B)

8.001mm

Dynamic Load (Cr)

Confirm per inquiry(— N)

Static Load (C0r)

Confirm per inquiry(— N)

Reference Speed

Confirm per inquiryrpm

Bearing type	Aircraft Bearings
Series	Radials
Seal type	Open
Material	Confirmed per inquiry — grade and certificate availability reviewed before quotation
Bore type	Round
Original catalog dimensions	0.38 × 1.02 × 0.315 in
Dimension unit	millimeter (mm) display; RBC source in inch

📐 Detailed Dimensions

Basic dimensions (mm)

Bore diameter (d)	9.652
Outer diameter (D)	25.908
Width (B)	8.001

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).

⇄ Same-size Bearings & Reference Options

The models below share the 9.652x25.908x8.001 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
39K4	Same boundary dimensions — verify fit/load	Radials	Open	Quote →

⚙ 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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Catalog Models

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RFQ

Specification Confirmed

❓ Frequently Asked Questions

What are the dimensions of 39KDD4?

The 39KDD4 bearing has bore (d) = 9.652 mm, outer diameter (D) = 25.908 mm, and width (B) = 8.001 mm.

What is the load rating of 39KDD4?

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

What bearing series does 39KDD4 belong to?

The 39KDD4 belongs to the Radials within the Aircraft Bearings category.

Can NLHB supply 39KDD4 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 39KDD4 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 39KDD4?

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 39KDD4

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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