FR188Deep Groove Ball Bearings

SFR188

d 0.25 × D 0.5 × B 0.125 mm

The SFR188 is a deep groove ball bearing with bore 0.25mm, outer diameter 0.5mm, and width 0.125mm rated for dynamic load 1.4 kN.

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SFR188 · 0.25x0.5x0.125 mm

📋 Technical Specifications

Bore (d)

0.25mm

Outer Dia. (D)

0.5mm

Width (B)

0.125mm

Dynamic Load (Cr)

1.38 kN(1378.949 N)

Static Load (C0r)

0.32 kN(320.272 N)

Reference Speed

36000rpm

Bearing type	Deep Groove Ball Bearings
Series	FR188
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	SFR188 ZZ (inquiry only)	General dust protection	Quote →
Double contact rubber seals	SFR188 2RS (inquiry only)	Dust and moisture protection at moderate speed	Quote →
Double non-contact rubber seals	SFR188 2RZ (inquiry only)	Lower-friction sealing at higher speed	Quote →
C3 radial clearance	SFR188 C3 (inquiry only)	Motors and applications with higher operating temperature	Quote →

📐 Detailed Dimensions

Basic dimensions (mm)

Bore diameter (d)	0.25
Outer diameter (D)	0.5
Width (B)	0.125

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

Request STEP →

🔎

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

36,000 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 0.25x0.5x0.125 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.

Model	Relationship	Series	Seal	Action
FRW188	Different outer-ring feature	Flanged Thin-Section Bearings	Open	Quote →
SFRW188	Same boundary dimensions — verify fit/load	FRW188	Open	Quote →

🔄 Related Models

Same bearing family or similar dimensions.

Same model family — dimensions may differSimilar size — reference only, verify all interfaces

⚙ 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 →

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Catalog Models

15+

Years

RFQ

Specification Confirmed

❓ Frequently Asked Questions

What are the dimensions of SFR188?

The SFR188 bearing has bore (d) = 0.25 mm, outer diameter (D) = 0.5 mm, and width (B) = 0.125 mm.

What is the load rating of SFR188?

Dynamic load rating (Cr) = 1.38 kN (1378.949 N), static load rating (C0r) = 0.32 kN.

What bearing series does SFR188 belong to?

The SFR188 belongs to the FR188 within the Deep Groove Ball Bearings category.

Can NLHB supply SFR188 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 SFR188 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 SFR188?

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 SFR188

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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