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FR2Deep Groove Ball BearingsShielded

SFR2zz

d 3.175 × D 9.525 × B 3.967 mm

The SFR2zz is a deep groove ball bearing with bore 3.175mm, outer diameter 9.525mm, and width 3.967mm rated for dynamic load 0.5 kN.

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NOMINAL DIMENSION DRAWINGD = 9.525 mmd = 3.175 mmB = 3.967 mmNLHB BEARINGSSFR2zz3.175 × 9.525 × 3.967 mmNOMINAL DIMENSIONS • TOLERANCE AND SUPPLY CONFIRMED PER INQUIRY
SFR2zz · 3.175x9.525x3.967 mm

📋 Technical Specifications

Bore (d)
3.175mm
Outer Dia. (D)
9.525mm
Width (B)
3.967mm
Dynamic Load (Cr)
0.48 kN(485 N)
Static Load (C0r)
0.16 kN(156 N)
Reference Speed
50400rpm
Bearing typeDeep Groove Ball Bearings
SeriesFR2
Seal typeShielded
MaterialConfirmed per inquiry — grade and certificate availability reviewed before quotation
Bore typeConfirmed per drawing
Measurement systemInch (imperial). Metric values converted at 25.4 mm/in; inch values in brackets.

📐 Detailed Dimensions

Basic dimensions (mm)

Bore diameter (d)3.175 (0.125")
Outer diameter (D)9.525 (0.375")
Width (B)3.967 (0.1562")

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

📑 Drawings & 3D Model

SFR2zz bearing dimension drawing, 3.175 x 9.525 x 3.967 mm
SFR2zz dimension drawing: bore d 3.175 mm × outer diameter D 9.525 mm × width B 3.967 mm. Tolerance class ABEC-1 (P0). Internal design is shown schematically. Flange Ø Df 11.176 mm, flange width Bf 0.762 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
50,400 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 3.175x9.525x3.967 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
FR2Same boundary dimensions — verify fit/loadMR Miniature SeriesOpenQuote →
FRW2Different outer-ring featureFlanged Thin-Section BearingsOpenQuote →
FRW2zzSame boundary dimensions — verify fit/loadFRW2ShieldedQuote →
SFR2Configuration variantFR2OpenQuote →
SFR2 2rsConfiguration variantFR2SealedQuote →
SFRW2Same boundary dimensions — verify fit/loadFRW2OpenQuote →
SFRW2zzSame boundary dimensions — verify fit/loadFRW2ShieldedQuote →

🔄 Related Models

Same bearing family or similar dimensions.

Similar size — reference only, verify all interfaces
FR2-6
3.175x9.525x2.779 mm
MR Miniature Series
B -1.2mm
FRW2-6
3.175x9.525x3.571 mm
Flanged Thin-Section Bearings
B -0.4mm
FRW2-6zz
3.175x9.525x3.571 mm
FRW2-6
B -0.4mm
SFR2-6
3.175x9.525x2.779 mm
FR2-6
B -1.2mm
SFR2-6 2rs
3.175x9.525x3.571 mm
FR2-6
B -0.4mm
SFR2-6zz
3.175x9.525x3.571 mm
FR2-6
B -0.4mm
SFRW2-6
3.175x9.525x2.779 mm
FRW2-6
B -1.2mm
SFRW2-6zz
3.175x9.525x3.571 mm
FRW2-6
B -0.4mm

⚙ 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 SFR2zz?
The SFR2zz bearing has bore (d) = 3.175 mm, outer diameter (D) = 9.525 mm, and width (B) = 3.967 mm.
Is there a SFR2zz drawing or CAD file?
Yes. The SFR2zz 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 SFR2zz?
Dynamic load rating (Cr) = 0.48 kN (485 N), static load rating (C0r) = 0.16 kN.
What tolerance class is the SFR2zz?
The standard tolerance class of the SFR2zz is ABEC-1 (P0) per GB/T 307.1, unless otherwise agreed.
What bearing series does SFR2zz belong to?
The SFR2zz belongs to the FR2 within the Deep Groove Ball Bearings category.
Can NLHB supply SFR2zz 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 SFR2zz 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 SFR2zz?
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 SFR2zz

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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