MF128Deep Groove Ball BearingsShielded

MF128zz

d 8 × D 12 × B 3.5 mm

The MF128zz is a deep groove ball bearing with bore 8mm, outer diameter 12mm, and width 3.5mm rated for dynamic load 0.5 kN.

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MF128zz · 8x12x3.5 mm

📋 Technical Specifications

Bore (d)

8mm

Outer Dia. (D)

12mm

Width (B)

3.5mm

Dynamic Load (Cr)

0.46 kN(462.615 N)

Static Load (C0r)

0.22 kN(217.963 N)

Reference Speed

40000rpm

Bearing type	Deep Groove Ball Bearings
Series	MF128
Seal type	Shielded
Material	Confirmed per inquiry — grade and certificate availability reviewed before quotation
Bore type	Confirmed per drawing
Dimension unit	millimeter (mm)

🔐 Model Code Breakdown

What each part of MF128zz means.

Mini Flange

MF	MF = miniature extended-inner flange

📐 Detailed Dimensions

Basic dimensions (mm)

Bore diameter (d)	8
Outer diameter (D)	12
Width (B)	3.5

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

40,000 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 8x12x3.5 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
FMR128	Different outer-ring feature	Flanged Thin-Section Bearings	Open	Quote →
FMR148	Different outer-ring feature	Flanged Thin-Section Bearings	Open	Quote →
MF128	Configuration variant	Extended Inner-Ring Flanged Bearings	Sealed	Quote →
MF128 2rs	Configuration variant	MF128	Sealed	Quote →
MF128 ZZ	Configuration variant	MF128	Metal Shields	Quote →
MF128ZZ1	Same boundary dimensions — verify fit/load	MR Miniature Series	Open	Quote →
MR128	Same boundary dimensions — verify fit/load	MR Miniature Series	Shielded	Quote →
MR128 2rs	Same boundary dimensions — verify fit/load	MR	Sealed	Quote →
MR128 ZZ	Same boundary dimensions — verify fit/load	MR	Metal Shields	Quote →
MR128zz	Same boundary dimensions — verify fit/load	MR	Shielded	Quote →
MR128ZZ1	Same boundary dimensions — verify fit/load	MR Miniature Series	Open	Quote →
SMF128 2rs	Same boundary dimensions — verify fit/load	SMF128	Sealed	Quote →
SMF128zz	Same boundary dimensions — verify fit/load	SMF128	Shielded	Quote →

🔄 Related Models

Same bearing family or similar dimensions.

Similar 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 →

4,315

Catalog Models

15+

Years

RFQ

Specification Confirmed

❓ Frequently Asked Questions

What are the dimensions of MF128zz?

The MF128zz bearing has bore (d) = 8 mm, outer diameter (D) = 12 mm, and width (B) = 3.5 mm.

What is the load rating of MF128zz?

Dynamic load rating (Cr) = 0.46 kN (462.615 N), static load rating (C0r) = 0.22 kN.

What bearing series does MF128zz belong to?

The MF128zz belongs to the MF128 within the Deep Groove Ball Bearings category.

Can NLHB supply MF128zz 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 MF128zz 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 MF128zz?

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 MF128zz

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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