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MRDeep Groove Ball BearingsMetal Shields

MR85 ZZ

d 5 × D 8 × B 2.5 mm

The MR85 ZZ is a deep groove ball bearing with bore 5mm, outer diameter 8mm, and width 2.5mm rated for dynamic load 0.3 kN.

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NOMINAL DIMENSION DRAWINGD = 8 mmd = 5 mmB = 2.5 mmNLHB BEARINGSMR85 ZZ5 × 8 × 2.5 mmNOMINAL DIMENSIONS • TOLERANCE AND SUPPLY CONFIRMED PER INQUIRY
MR85 ZZ · 5x8x2.5 mm

📋 Technical Specifications

Bore (d)
5mm
Outer Dia. (D)
8mm
Width (B)
2.5mm
Dynamic Load (Cr)
0.28 kN(278 N)
Static Load (C0r)
0.13 kN(131 N)
Reference Speed
53000rpm
Bearing typeDeep Groove Ball Bearings
SeriesMR
Seal typeMetal Shields
MaterialConfirmed per inquiry — grade and certificate availability reviewed before quotation
Bore typeConfirmed per drawing
Dimension unitmillimeter (mm)

🔐 Model Code Breakdown

What each part of MR85 ZZ means.

MR
Miniature
MRMR = miniature bearing

📋 Nominal Variants by Seal Type

Catalog variants open a detail page. Inquiry-only configurations go directly to RFQ.

Seal TypeModel CodeTypical Use
OpenMR85High speed in clean environmentsQuote →
Double contact rubber sealsMR85 2RS (inquiry only)Dust and moisture protection at moderate speedQuote →
Double non-contact rubber sealsMR85 2RZ (inquiry only)Lower-friction sealing at higher speedQuote →
C3 radial clearanceMR85 C3 (inquiry only)Motors and applications with higher operating temperatureQuote →

📐 Detailed Dimensions

Basic dimensions (mm)

Bore diameter (d)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

MR85 ZZ bearing dimension drawing, 5 x 8 x 2.5 mm
MR85 ZZ dimension drawing: bore d 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
53,000 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 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
MF85Different outer-ring featureExtended Inner-Ring Flanged BearingsSealedQuote →
MF85 2rsSame boundary dimensions — verify fit/loadMF85SealedQuote →
MF85 ZZSame boundary dimensions — verify fit/loadMF85Metal ShieldsQuote →
MR85Configuration variantMR Miniature SeriesSealedQuote →
MR85 2rsConfiguration variantMRSealedQuote →
SMF85 2rsSame boundary dimensions — verify fit/loadSMF85SealedQuote →
SMF85zzSame boundary dimensions — verify fit/loadSMF85ShieldedQuote →

🔄 Related Models

Same bearing family or similar dimensions.

Similar size — reference only, verify all interfaces
SMF85
5x8x2 mm
Extended Inner-Ring Flanged Bearings
B -0.5mm

⚙ 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 MR85 ZZ?
The MR85 ZZ bearing has bore (d) = 5 mm, outer diameter (D) = 8 mm, and width (B) = 2.5 mm.
Is there a MR85 ZZ drawing or CAD file?
Yes. The MR85 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 MR85 ZZ?
Dynamic load rating (Cr) = 0.28 kN (278 N), static load rating (C0r) = 0.13 kN.
What tolerance class is the MR85 ZZ?
The standard tolerance class of the MR85 ZZ is ABEC-1 (P0) per GB/T 307.1, unless otherwise agreed.
What bearing series does MR85 ZZ belong to?
The MR85 ZZ belongs to the MR within the Deep Groove Ball Bearings category.
Can NLHB supply MR85 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 MR85 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 MR85 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 MR85 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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