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Inch RW SeriesDeep Groove Ball BearingsShielded

RW3zz

d 4.762 × D 12.7 × B 4.978 mm

The RW3zz is a deep groove ball bearing with bore 4.762mm, outer diameter 12.7mm, and width 4.978mm rated for dynamic load 1.1 kN.

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NOMINAL DIMENSION DRAWINGD = 12.7 mmd = 4.762 mmB = 4.978 mmNLHB BEARINGSRW3zz4.762 × 12.7 × 4.978 mmNOMINAL DIMENSIONS • TOLERANCE AND SUPPLY CONFIRMED PER INQUIRY
RW3zz · 4.762x12.7x4.978 mm

📋 Technical Specifications

Bore (d)
4.762mm
Outer Dia. (D)
12.7mm
Width (B)
4.978mm
Dynamic Load (Cr)
1.11 kN(1109 N)
Static Load (C0r)
0.39 kN(392 N)
Reference Speed
43000rpm
Bearing typeDeep Groove Ball Bearings
SeriesInch RW Series
Seal typeShielded
MaterialConfirmed per inquiry — grade and certificate availability reviewed before quotation
Bore typeConfirmed per drawing
Dimension unitmillimeter (mm)

📐 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

RW3zz bearing dimension drawing, 4.762 x 12.7 x 4.978 mm
RW3zz 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. Inner-ring width B1 5.773 mm, inner-ring OD E 7.01 mm.
📑
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 2rsSame boundary dimensions — verify fit/loadInch R SeriesSealedQuote →
R3 ZZSame boundary dimensions — verify fit/loadExtra Small / Miniature Deep Groove Ball Bearing Inch SeriesMetal ShieldsQuote →

⚙ 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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4,300+
Models
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RFQ
Specification Confirmed

❓ Frequently Asked Questions

What are the dimensions of RW3zz?
The RW3zz bearing has bore (d) = 4.762 mm, outer diameter (D) = 12.7 mm, and width (B) = 4.978 mm.
Is there a RW3zz drawing or CAD file?
Yes. The RW3zz 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 RW3zz?
Dynamic load rating (Cr) = 1.11 kN (1109 N), static load rating (C0r) = 0.39 kN.
What tolerance class is the RW3zz?
The standard tolerance class of the RW3zz is ABEC-1 (P0) per GB/T 307.1, unless otherwise agreed.
What bearing series does RW3zz belong to?
The RW3zz belongs to the Inch RW Series within the Deep Groove Ball Bearings category.
Can NLHB supply RW3zz 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 RW3zz 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 RW3zz?
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 RW3zz

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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