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Extra Small / Miniature Deep Groove Ball Bearing Inch SeriesDeep Groove Ball BearingsMetal Shields

R3 ZZ

d 4.762 × D 12.7 × B 4.978 mm

The R3 ZZ is a deep groove ball bearing with bore 4.762mm, outer diameter 12.7mm, and width 4.978mm rated for dynamic load 1.3 kN.

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NOMINAL DIMENSION DRAWINGD = 12.7 mmd = 4.762 mmB = 4.978 mmNLHB BEARINGSR3 ZZ4.762 × 12.7 × 4.978 mmNOMINAL DIMENSIONS • TOLERANCE AND SUPPLY CONFIRMED PER INQUIRY
R3 ZZ · 4.762x12.7x4.978 mm

📋 Technical Specifications

Bore (d)
4.762mm
Outer Dia. (D)
12.7mm
Width (B)
4.978mm
Dynamic Load (Cr)
1.30 kN(1300 N)
Static Load (C0r)
0.48 kN(485 N)
Reference Speed
43000rpm
Bearing typeDeep Groove Ball Bearings
SeriesExtra Small / Miniature Deep Groove Ball Bearing Inch Series
Seal typeMetal Shields
MaterialConfirmed per inquiry — grade and certificate availability reviewed before quotation
Bore typeConfirmed per drawing
Dimension unitmillimeter (mm)

📋 Nominal Variants by Seal Type

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

Seal TypeModel CodeTypical Use
OpenR3High speed in clean environmentsQuote →
Double contact rubber sealsR3 2RS (inquiry only)Dust and moisture protection at moderate speedQuote →
Double non-contact rubber sealsR3 2RZ (inquiry only)Lower-friction sealing at higher speedQuote →
C3 radial clearanceR3 C3 (inquiry only)Motors and applications with higher operating temperatureQuote →

📐 Detailed Dimensions

Basic dimensions (mm)

Bore diameter (d)4.762
Outer diameter (D)12.7
Width (B)4.978

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

📑 Drawings & 3D Model

R3 ZZ bearing dimension drawing, 4.762 x 12.7 x 4.978 mm
R3 ZZ dimension drawing: bore d 4.762 mm × outer diameter D 12.7 mm × width B 4.978 mm. Tolerance class ABEC-1 (P0). Internal design is shown schematically.
📑
2D Drawing (PDF)
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📐
2D DXF File
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📅
3D STEP Model
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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
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 4.762x12.7x4.978 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
FR3ZZSame boundary dimensions — verify fit/loadMR Miniature SeriesShieldedQuote →
R3 2rsConfiguration variantInch R SeriesSealedQuote →
RW3zzSame boundary dimensions — verify fit/loadInch RW SeriesShieldedQuote →

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

❓ Frequently Asked Questions

What are the dimensions of R3 ZZ?
The R3 ZZ bearing has bore (d) = 4.762 mm, outer diameter (D) = 12.7 mm, and width (B) = 4.978 mm.
Is there a R3 ZZ drawing or CAD file?
Yes. The R3 ZZ 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 R3 ZZ?
Dynamic load rating (Cr) = 1.30 kN (1300 N), static load rating (C0r) = 0.48 kN.
What tolerance class is the R3 ZZ?
The standard tolerance class of the R3 ZZ is ABEC-1 (P0) per GB/T 307.1, unless otherwise agreed.
What bearing series does R3 ZZ belong to?
The R3 ZZ belongs to the Extra Small / Miniature Deep Groove Ball Bearing Inch Series within the Deep Groove Ball Bearings category.
Can NLHB supply R3 ZZ 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 ZZ 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 ZZ?
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 ZZ

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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