Inch R / 1600 SeriesDeep Groove Ball Bearingscross-ref: NSK

R3

d 4.763 × D 12.7 × B 3.969 mm

The R3 is a deep groove ball bearing with bore 4.763mm, outer diameter 12.7mm, and width 3.969mm rated for dynamic load 0.9 kN.

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R3 — representative product photo — Representative product

R3 · 4.763x12.7x3.969 mm

📋 Technical Specifications

Bore (d)

4.763mm

Outer Dia. (D)

12.7mm

Width (B)

3.969mm

Dynamic Load (Cr)

0.89 kN(890 N)

Static Load (C0r)

0.42 kN(420 N)

Reference Speed

43000rpm

Bearing type	Deep Groove Ball Bearings
Series	Inch R / 1600 Series
Seal type	Open
Material	Confirmed per inquiry — grade and certificate availability reviewed before quotation
Bore type	Confirmed per drawing
Dimension unit	millimeter (mm)

📋 Nominal Variants by Seal Type

Catalog variants open a detail page. Inquiry-only configurations go directly to RFQ.

Seal Type	Model Code	Typical Use
Double metal shields	R3 ZZ	General dust protection	Quote →
Double contact rubber seals	R3 2RS (inquiry only)	Dust and moisture protection at moderate speed	Quote →
Double non-contact rubber seals	R3 2RZ (inquiry only)	Lower-friction sealing at higher speed	Quote →
C3 radial clearance	R3 C3 (inquiry only)	Motors and applications with higher operating temperature	Quote →

📐 Detailed Dimensions

Basic dimensions (mm)

Bore diameter (d)	4.763
Outer diameter (D)	12.7
Width (B)	3.969

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

43,000 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 4.763x12.7x3.969 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.

No other catalog models share the same boundary dimensions.

🔄 Related Models

Same bearing family or similar dimensions.

Same model family — dimensions may differ

⚙ 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.

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Catalog Models

15+

Years

RFQ

Specification Confirmed

❓ Frequently Asked Questions

What are the dimensions of R3?

The R3 bearing has bore (d) = 4.763 mm, outer diameter (D) = 12.7 mm, and width (B) = 3.969 mm.

What is the load rating of R3?

Dynamic load rating (Cr) = 0.89 kN (890 N), static load rating (C0r) = 0.42 kN.

What bearing series does R3 belong to?

The R3 belongs to the Inch R / 1600 Series within the Deep Groove Ball Bearings category.

Can NLHB supply R3 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 R3 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 R3?

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 R3

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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R3