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MR Miniature SeriesDeep Groove Ball Bearings

MR8-2.5

d 2.5 × D 8 × B 2.5 mm

The MR8-2.5 is a deep groove ball bearing with bore 2.5mm, outer diameter 8mm, and width 2.5mm rated for dynamic load 0.559 kN.

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MR8-2.5 — representative product photo
Representative product
MR8-2.5 · 2.5x8x2.5 mm

📋 Technical Specifications

Bore (d)
2.5mm
Outer Dia. (D)
8mm
Width (B)
2.5mm
Dynamic Load (Cr)
0.559 kN(559 N)
Static Load (C0r)
0.179 kN(179 N)
Reference Speed
67000rpm
Bearing typeDeep Groove Ball Bearings
SeriesMR Miniature Series
Seal typeOpen
MaterialConfirmed per inquiry — grade and certificate availability reviewed before quotation
Bore typeConfirmed per drawing
Dimension unitmillimeter (mm)

🔐 Model Code Breakdown

What each part of MR8-2.5 means.

MR
Miniature
MRMR = miniature bearing

📐 Detailed Dimensions

Basic dimensions (mm)

Bore diameter (d)2.5
Outer diameter (D)8
Width (B)2.5

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

📑 Drawings & 3D Model

MR8-2.5 bearing dimension drawing, 2.5 x 8 x 2.5 mm
MR8-2.5 dimension drawing: bore d 2.5 mm × outer diameter D 8 mm × width B 2.5 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
67,000 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 2.5x8x2.5 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.

ModelRelationshipSeriesSealAction
MF82xDifferent outer-ring featureExtended Inner-Ring Flanged BearingsOpenQuote →
MF82x 2rsSame boundary dimensions — verify fit/loadMF82xSealedQuote →
MF82xzzSame boundary dimensions — verify fit/loadMF82xShieldedQuote →
MR8-2.5 ZZConfiguration variantMR Miniature SeriesMetal ShieldsQuote →
MR82xSame boundary dimensions — verify fit/loadMR Miniature SeriesOpenQuote →
MR82x 2rsSame boundary dimensions — verify fit/loadMRSealedQuote →
MR82xzzSame boundary dimensions — verify fit/loadMRShieldedQuote →
SMF82xDifferent outer-ring featureExtended Inner-Ring Flanged BearingsSealedQuote →
SMF82x 2rsSame boundary dimensions — verify fit/loadSMF82xSealedQuote →
SMF82xzzSame boundary dimensions — verify fit/loadSMF82xShieldedQuote →

🔄 Related Models

Same bearing family or similar dimensions.

Similar size — reference only, verify all interfaces
60-2.5
2.5x8x2.8 mm
6000
B +0.3mm
60-2.5 ZZ
2.5x8x2.8 mm
6000
B +0.3mm
602X
2.5x8x2.8 mm
6000
B +0.3mm
F602XF
2.5x8x2.8 mm
Standard Flanged Bearings
B +0.3mm
SF602x
2.5x8x2.8 mm
F602x
B +0.3mm

⚙ 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 MR8-2.5?
The MR8-2.5 bearing has bore (d) = 2.5 mm, outer diameter (D) = 8 mm, and width (B) = 2.5 mm.
Is there a MR8-2.5 drawing or CAD file?
Yes. The MR8-2.5 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 MR8-2.5?
Dynamic load rating (Cr) = 0.559 kN (559 N), static load rating (C0r) = 0.179 kN.
What tolerance class is the MR8-2.5?
The standard tolerance class of the MR8-2.5 is ABEC-1 (P0) per GB/T 307.1, unless otherwise agreed.
What bearing series does MR8-2.5 belong to?
The MR8-2.5 belongs to the MR Miniature Series within the Deep Groove Ball Bearings category.
Can NLHB supply MR8-2.5 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 MR8-2.5 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 MR8-2.5?
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 MR8-2.5

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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