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NSK / Single row deep groove ball bearings

NSK MF85

Deep groove ball bearings technical reference with manufacturer-sourced dimensions, characteristics and engineering resources.

Technical data available
Bore diameterd
5 mm
Outside diameterD
8 mm
WidthB
2 mm
Dynamic load ratingC
0.34 kN
Static load ratingC0
0.12 kN
Mass≈m
0.00033 kg

Use this page as a technical reference. Verify the current manufacturer specification and the complete application requirements before selection.

NSK MF85 dimensions and catalogue data

NSK MF85 is a listed metric-series single-row deep groove ball bearing. The published dimensions are 5×8×2 mm, using bore d, body outside diameter D and open width B.

Open. Dynamic radial rating Cr: 0.34 kN; static radial rating C0r: 0.12 kN.

How to use this model record

  • This is an independently organised catalogue reference, not an installation drawing or approval for a machine or vehicle.
  • Compare the complete designation. B and B1 may differ between open and closed versions; a related base number does not establish the same width.
  • Load ratings are calculation inputs, not universal permissible loads. Limiting speed depends on the stated closure, lubrication and application conditions.
  • Shaft-shoulder and housing-shoulder values describe adjacent mounting geometry. Preserve the min./max. direction; they are not alternative bearing diameters.
  • Precision class, radial internal clearance, grease specification, material grade and fitment are not established by this table. Missing values are not zero.
  • A rotating outer ring requires a manufacturer application check for shielded or sealed constructions.
  • The flange diameter D1 is 9.2 mm and flange width C1 is 0.6 mm. The flange envelope is larger than body diameter D.

Technical basis:NSK Rolling Bearings for Industrial Machinery, E1103d (2025), Part C, C064–C065; source checked 2026-10-01. Manufacturer facts are reorganised for model lookup and comparison; no manufacturer document is republished.

Search bearing dimensions·Load calculation·NSK model records

Technical data

Product specifications

Metric and imperial values are paired where the manufacturer provides both. Expand a section to review its parameters.

Core specifications8 parameters
Core specifications
ParameterSymbolValue
Variant / constructionSingle row deep groove ball bearings
Bore diameterd5 mm
Outside diameterD8 mm
WidthB2 mm
Basic dynamic load ratingC0.34 kN
Basic static load ratingC00.12 kN
Mass≈m0.00033 kg
SealingOpen
Mounting dimensions2 parameters
Mounting dimensions
ParameterSymbolValue
Minimum shaft shoulder diameter (open)da min.5.8 mm
Maximum adjacent fillet radiusra max.0.1 mm
Boundary dimensions4 parameters
Boundary dimensions
ParameterSymbolValue
Bore diameterd5 mm
Body outside diameterD8 mm
Bearing width (open)B2 mm
Minimum bearing chamferr min.0.1 mm
Construction1 parameter
Construction
ParameterSymbolValue
Catalogue closure constructionOpen
Flange dimensions2 parameters
Flange dimensions
ParameterSymbolValue
Flange outside diameterD19.2 mm
Flange widthC10.6 mm
Load ratings2 parameters
Load ratings
ParameterSymbolValue
Basic dynamic radial load ratingCr340 N
Basic static radial load ratingC0r120 N
Lubrication-qualified speed2 parameters
Lubrication-qualified speed
ParameterSymbolValue
Limiting speed with grease53000 r/min
Limiting speed with oil (open)63000 r/min
Reference mass1 parameter
Reference mass
ParameterSymbolValue
Approximate catalogue mass (open)0.33 g

Technical documents & data sheet

This product page is a BearingScope catalogue reference, not a manufacturer-certified drawing. Preserve the full brand and designation when comparing files.

Record identity
NSK MF85
Document matching
Exact designation, assembly scope, revision and units must agree.

No verified redistributable CAD or manufacturer PDF is registered for this exact model. A catalogue image is not a dimensioned drawing. Missing technical files are not generated or replaced with unrelated models.

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