99,016 bearing records · search, filter and compare

SKF / Super-precision angular contact ball bearings

SKF 71908 FEGA/HCP4A

Super-precision, high-speed e design, universally matchable single row angular contact ball bearing technical reference with manufacturer-sourced dimensions, characteristics and engineering resources.

Technical data available
Bore diameterd
40 mm
Outside diameterD
62 mm
WidthB
12 mm
Dynamic load ratingC
9.75 kN
Static load ratingC0
6 kN
Mass≈m
0.098 kg

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

Technical data

Product specifications

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

Core specifications11 parameters
Core specifications
ParameterSymbolValue
Variant / constructionSuper-precision angular contact ball bearings
Bore diameterd40 mm
Outside diameterD62 mm
WidthB12 mm
Basic dynamic load ratingC9.75 kN
Basic static load ratingC06 kN
Fatigue load limitPu0.186 kN
Mass≈m0.098 kg
SealingWithout
Bearing materialHybrid (ceramic balls)
LubricantNone
Dimensions4 parameters
Dimensions
ParameterSymbolValue
Bore diameter40.0 mm
Outside diameter62.0 mm
Width12.0 mm
Contact angle18.0 °
Product identity5 parameters
Product identity
ParameterSymbolValue
Official product categorySuper-precision angular contact ball bearings
Official taxonomy path/products/super-precision-bearings/angular-contact-ball-bearings
Structure group IDBA1_010
Available from SKFYes
RemanufacturableNo
Engineering — Abutment dimensions7 parameters
Engineering — Abutment dimensions
ParameterSymbolValue
Diameter of shaft abutmentd amin. 43.2 mm
Diameter of shaft abutmentd bmin. 42 mm
Diameter of housing abutmentD amax. 58.8 mm
Diameter of housing abutmentD bmax. 60 mm
Radius of filletr amax. 0.6 mm
Radius of filletr bmax. 0.3 mm
Position of oil nozzled n48 mm
Engineering — Calculation data11 parameters
Engineering — Calculation data
ParameterSymbolValue
Basic dynamic load ratingC9.75 kN
Basic static load ratingC 06 kN
Fatigue load limitP u0.186 kN
Attainable speedsRefer to catalogue data or contact SKF for the attainable speeds
Attainable speed for grease lubricationTo be calculated: Single bearing () x speed reduction factor (see table below)
Attainable speed for oil-air lubricationTo be calculated: Single bearing () x speed reduction factor (see table below)
Contact angleα18 °
Ball diameterD w6.35 mm
Number of rowsi1
Number of balls (per bearing)z19
Reference grease quantity (per bearing)G ref1.4 cm³
Engineering — Calculation data — Correction factors for preload calculation4 parameters
Engineering — Calculation data — Correction factors for preload calculation
ParameterSymbolValue
Correction factor dependent on bearing series and sizef1.1
Correction factor dependent on contact anglef 11
Correction factor, preload class Af 2A1
Correction factor for hybrid bearingsf HC1
Engineering — Calculation data — Factors for equivalent bearing load calculation2 parameters
Engineering — Calculation data — Factors for equivalent bearing load calculation
ParameterSymbolValue
Calculation factor for equivalent loadsf 08.2
Additional factors for equivalent loadsRefer to Notes 1 and 2 below
Engineering — Calculation data — Preload and stiffness (back-to-back, face-to-face)3 parameters
Engineering — Calculation data — Preload and stiffness (back-to-back, face-to-face)
ParameterSymbolValue
Preload classA
Preload when unmountedG63 N
Axial stiffness49 N/µm
Engineering — Dimensions9 parameters
Engineering — Dimensions
ParameterSymbolValue
Bore diameterd40 mm
Outside diameterD62 mm
WidthB12 mm
Shoulder diameter of inner ring (large side face)d 146.5 mm
Shoulder diameter of inner ring (small side face)d 244.8 mm
Shoulder diameter of outer ring (large side face)D 154.15 mm
Chamfer dimensionr 1,2min. 0.6 mm
Chamfer dimensionr 3,4min. 0.3 mm
Distance from side face to pressure pointa14.2 mm
Engineering — Engineering specifications1 parameter
Engineering — Engineering specifications
ParameterSymbolValue
Universal matching bearing(s)Yes, back-to-back (<>), face-to-face (> >)
Logistics3 parameters
Logistics
ParameterSymbolValue
Product net weight0.098 kg
eClass code23-05-08-03
UNSPSC code31171531
Performance3 parameters
Performance
ParameterSymbolValue
Basic dynamic load rating9.75 kN
Basic static load rating6.0 kN
NoteRefer to catalogue data or contact SKF for the attainable speeds
Properties13 parameters
Properties
ParameterSymbolValue
Contact typeNormal contact (two-point contact)
Number of rows1
Ring typeOne-piece inner and outer rings
DesignHigh-speed E
Universal matching bearingYes, back-to-back (<>), face-to-face (> >)
Matched arrangementNo
Matched condition (axial clearance/ preload)Measuring load, class A
Tolerance classP4A
Material, bearingHybrid (ceramic balls)
CoatingWithout
SealingWithout
LubricantNone
Indicative carbon footprint for new product0.36 kg CO 2 e

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
SKF 71908 FEGA/HCP4A
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.

Look up another model or check drawing requirements →

Search the consolidated catalogue

Find, filter and compare bearing model data in one place.

Open model search