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

R1-5 ZZ

d 2.38 × D 7.938 × B 2.779 mm

The R1-5 ZZ is a deep groove ball bearing with bore 2.38mm, outer diameter 7.938mm, and width 2.779mm rated for dynamic load 0.550 kN.

Request Quote for R1-5 ZZSearch Similar
NOMINAL DIMENSION DRAWINGD = 7.938 mmd = 2.38 mmB = 2.779 mmNLHB BEARINGSR1-5 ZZ2.38 × 7.938 × 2.779 mmNOMINAL DIMENSIONS • TOLERANCE AND SUPPLY CONFIRMED PER INQUIRY
R1-5 ZZ · 2.38x7.938x2.779 mm

📋 Technical Specifications

Bore (d)
2.38mm
Outer Dia. (D)
7.938mm
Width (B)
2.779mm
Dynamic Load (Cr)
0.550 kN(550 N)
Static Load (C0r)
0.175 kN(175 N)
Reference Speed
71000rpm
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)

📐 Detailed Dimensions

Basic dimensions (mm)

Bore diameter (d)2.38
Outer diameter (D)7.938
Width (B)2.779

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

📑 Drawings & 3D Model

R1-5 ZZ bearing dimension drawing, 2.38 x 7.938 x 2.779 mm
R1-5 ZZ dimension drawing: bore d 2.38 mm × outer diameter D 7.938 mm × width B 2.779 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
71,000 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 2.38x7.938x2.779 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
R1-5Configuration variantMR Miniature SeriesOpenQuote →

🔄 Related Models

Same bearing family or similar dimensions.

Same model family — dimensions may differ
R1-5ZZ
2.38x7.938x3.571 mm
MR Miniature Series
B +0.8mm
R1
1.397x4.762x1.984 mm
MR Miniature Series
B -0.8mm
R1 ZZ
1.397x4.762x2.779 mm
Extra Small / Miniature Deep Groove Ball Bearing Inch Series
R1-4
1.984x6.35x2.38 mm
MR Miniature Series
B -0.4mm
R1-4 2rs
1.985x6.35x3.571 mm
Inch R Series
B +0.8mm
Similar size — reference only, verify all interfaces
FR1-5ZZ
2.38x7.938x3.571 mm
MR Miniature Series
B +0.8mm

⚙ 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 R1-5 ZZ?
The R1-5 ZZ bearing has bore (d) = 2.38 mm, outer diameter (D) = 7.938 mm, and width (B) = 2.779 mm.
Is there a R1-5 ZZ drawing or CAD file?
Yes. The R1-5 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 R1-5 ZZ?
Dynamic load rating (Cr) = 0.550 kN (550 N), static load rating (C0r) = 0.175 kN.
What tolerance class is the R1-5 ZZ?
The standard tolerance class of the R1-5 ZZ is ABEC-1 (P0) per GB/T 307.1, unless otherwise agreed.
What bearing series does R1-5 ZZ belong to?
The R1-5 ZZ belongs to the Extra Small / Miniature Deep Groove Ball Bearing Inch Series within the Deep Groove Ball Bearings category.
Can NLHB supply R1-5 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 R1-5 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 R1-5 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 R1-5 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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