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SKF / Super-precision angular contact ball bearings

SKF S71901 CDGA/HCP4A

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

Technical data available
Bore diameterd
12 mm
Outside diameterD
24 mm
WidthB
6 mm
Dynamic load ratingC
2.65 kN
Static load ratingC0
1.25 kN
Mass≈m
0.01 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 diameterd12 mm
Outside diameterD24 mm
WidthB6 mm
Basic dynamic load ratingC2.65 kN
Basic static load ratingC01.25 kN
Fatigue load limitPu0.038 kN
Mass≈m0.01 kg
SealingSeal on both sides
Bearing materialHybrid (ceramic balls)
LubricantGrease
Dimensions4 parameters
Dimensions
ParameterSymbolValue
Bore diameter12.0 mm
Outside diameter24.0 mm
Width6.0 mm
Contact angle15.0 °
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 dimensions8 parameters
Engineering — Abutment dimensions
ParameterSymbolValue
Diameter of shaft abutmentd amin. 14 mm
Diameter of shaft abutmentd amax. 15.6 mm
Diameter of shaft abutmentd bmin. 14 mm
Diameter of shaft abutmentd bmax. 15.6 mm
Diameter of housing abutmentD amax. 22 mm
Diameter of housing abutmentD bmax. 22.6 mm
Radius of filletr amax. 0.3 mm
Radius of filletr bmax. 0.2 mm
Engineering — Calculation data8 parameters
Engineering — Calculation data
ParameterSymbolValue
Basic dynamic load ratingC2.65 kN
Basic static load ratingC 01.25 kN
Fatigue load limitP u0.038 kN
Attainable speedsRefer to catalogue data or contact SKF for the attainable speeds
Contact angleα15 °
Ball diameterD w3.175 mm
Number of rowsi1
Number of balls (per bearing)z13
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
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 09.8
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 unmountedG10 N
Axial stiffness14 N/µm
Engineering — Dimensions9 parameters
Engineering — Dimensions
ParameterSymbolValue
Bore diameterd12 mm
Outside diameterD24 mm
WidthB6 mm
Shoulder diameter of inner ring (large side face)d 116 mm
Shoulder diameter of inner ring (small side face)d 216 mm
Recess diameter of outer ring (large side face)D 221.8 mm
Chamfer dimensionr 1,2min. 0.3 mm
Chamfer dimensionr 3,4min. 0.2 mm
Distance from side face to pressure pointa5.4 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 weight0.01 kg
eClass code23-05-08-03
UNSPSC code31171531
Performance3 parameters
Performance
ParameterSymbolValue
Basic dynamic load rating2.65 kN
Basic static load rating1.25 kN
NoteRefer to catalogue data or contact SKF for the attainable speeds
Properties14 parameters
Properties
ParameterSymbolValue
Contact typeNormal contact (two-point contact)
Number of rows1
Ring typeOne-piece inner and outer rings
DesignHigh-capacity D
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
SealingSeal on both sides
Sealing typeNon-contact
LubricantGrease
Indicative carbon footprint for new product0.04 kg CO 2 e

Technical documents & data sheet

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Record identity
SKF S71901 CDGA/HCP4A
Document matching
Exact designation, assembly scope, revision and units must agree.

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