MR Miniature SeriesDeep Groove Ball Bearingscross-ref: NSK

R168B

d 6.35 × D 9.525 × B 3.175 mm

The R168B is a deep groove ball bearing with bore 6.35mm, outer diameter 9.525mm, and width 3.175mm rated for dynamic load 0.5 kN.

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R168B — representative product photo — Representative product

R168B · 6.35x9.525x3.175 mm

📋 Technical Specifications

Bore (d)

6.35mm

Outer Dia. (D)

9.525mm

Width (B)

3.175mm

Dynamic Load (Cr)

0.46 kN(460 N)

Static Load (C0r)

0.17 kN(173 N)

Reference Speed

48000rpm

Bearing type	Deep Groove Ball Bearings
Series	MR Miniature Series
Seal type	Open
Material	Confirmed per inquiry — grade and certificate availability reviewed before quotation
Bore type	Confirmed per drawing
Dimension unit	millimeter (mm)

📐 Detailed Dimensions

Basic dimensions (mm)

Bore diameter (d)	6.35
Outer diameter (D)	9.525
Width (B)	3.175

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

48,000 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 6.35x9.525x3.175 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
FR168B	Same boundary dimensions — verify fit/load	MR Miniature Series	Open	Quote →
FR168BZZ	Same boundary dimensions — verify fit/load	MR Miniature Series	Open	Quote →
R168	Same boundary dimensions — verify fit/load	Inch R Series	Open	Quote →
R168 2rs	Same boundary dimensions — verify fit/load	Inch R Series	Sealed	Quote →
R168B ZZ	Configuration variant	Extra Small / Miniature Deep Groove Ball Bearing Inch Series	Metal Shields	Quote →
R168BZZ	Configuration variant	MR Miniature Series	Metal Shields	Quote →
R168zz	Same boundary dimensions — verify fit/load	Inch R Series	Shielded	Quote →
RW168	Same boundary dimensions — verify fit/load	Inch RW Series	Open	Quote →
RW168zz	Same boundary dimensions — verify fit/load	Inch RW Series	Shielded	Quote →

⚙ Typical Applications

Electric motors

Fans and blowers

Pumps

Household appliances

Power tools

Office equipment

General machinery

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 R168B?

The R168B bearing has bore (d) = 6.35 mm, outer diameter (D) = 9.525 mm, and width (B) = 3.175 mm.

What is the load rating of R168B?

Dynamic load rating (Cr) = 0.46 kN (460 N), static load rating (C0r) = 0.17 kN.

What bearing series does R168B belong to?

The R168B belongs to the MR Miniature Series within the Deep Groove Ball Bearings category.

Can NLHB supply R168B 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 R168B 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 R168B?

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 R168B

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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