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SKF / Super-precision angular contact ball bearings

SKF S7020 ACE/HCP4A

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

Technical data available
Bore diameterd
100 mm
Outside diameterD
150 mm
WidthB
24 mm
Dynamic load ratingC
42.3 kN
Static load ratingC0
38 kN
Mass≈m
1.13 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 diameterd100 mm
Outside diameterD150 mm
WidthB24 mm
Basic dynamic load ratingC42.3 kN
Basic static load ratingC038 kN
Fatigue load limitPu1.04 kN
Mass≈m1.13 kg
SealingSeal on both sides
Bearing materialHybrid (ceramic balls)
LubricantGrease
Dimensions4 parameters
Dimensions
ParameterSymbolValue
Bore diameter100.0 mm
Outside diameter150.0 mm
Width24.0 mm
Contact angle25.0 °
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. 107 mm
Diameter of shaft abutmentd amax. 116.7 mm
Diameter of shaft abutmentd bmin. 107 mm
Diameter of shaft abutmentd bmax. 113.5 mm
Diameter of housing abutmentD amax. 143 mm
Diameter of housing abutmentD bmax. 144.4 mm
Radius of filletr amax. 1.5 mm
Radius of filletr bmax. 1 mm
Engineering — Calculation data8 parameters
Engineering — Calculation data
ParameterSymbolValue
Basic dynamic load ratingC42.3 kN
Basic static load ratingC 038 kN
Fatigue load limitP u1.04 kN
Attainable speed for grease lubrication12700 r/min
Contact angleα25 °
Ball diameterD w12.7 mm
Number of rowsi1
Number of balls (per bearing)z27
Engineering — Calculation data — Correction factors for preload calculation6 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 10.99
Correction factor, preload class Af 2A1
Correction factor, preload class Bf 2B1
Correction factor, preload class Cf 2C1.1
Correction factor for hybrid bearingsf HC1
Engineering — Calculation data — Factors for equivalent bearing load calculation8 parameters
Engineering — Calculation data — Factors for equivalent bearing load calculation
ParameterSymbolValue
Limiting valuee0.68
Axial load factor (single, tandem)Y 20.87
Axial load factor (single, tandem)Y 00.38
Radial load factor (single, tandem)X 20.41
Axial load factor (back-to-back, face-to-face)Y 10.92
Axial load factor (back-to-back, face-to-face)Y 21.4
Axial load factor (back-to-back, face-to-face)Y 00.76
Radial load factor (back-to-back, face-to-face)X 20.67
Engineering — Calculation data — Preload and stiffness (back-to-back, face-to-face)6 parameters
Engineering — Calculation data — Preload and stiffness (back-to-back, face-to-face)
ParameterSymbolValue
Preload, class AG A390 N
Axial stiffnes for preload A (sets of two brgs back to back or face to face)245 N/µm
Preload, class BG B1150 N
Axial stiffness for preload B (sets of two brgs back-to-back or face-to-face)366 N/µm
Preload, class CG C2310 N
Axial stiffness for preload C (sets of two brgs back-to-back or face-to-face)483 N/µm
Engineering — Dimensions9 parameters
Engineering — Dimensions
ParameterSymbolValue
Bore diameterd100 mm
Outside diameterD150 mm
WidthB24 mm
Shoulder diameter of inner ring (large side face)d 1117.38 mm
Shoulder diameter of inner ring (small side face)d 2114.2 mm
Recess diameter of outer ring (large side face)D 2136 mm
Chamfer dimensionr 1,2min. 1.5 mm
Chamfer dimensionr 3,4min. 1 mm
Distance from side face to pressure pointa41.4 mm
Engineering — Engineering specifications1 parameter
Engineering — Engineering specifications
ParameterSymbolValue
Universal matching bearing(s)No
Logistics3 parameters
Logistics
ParameterSymbolValue
Product net weight1.13 kg
eClass code23-05-08-03
UNSPSC code31171531
Performance3 parameters
Performance
ParameterSymbolValue
Basic dynamic load rating42.3 kN
Basic static load rating38.0 kN
Attainable speed for grease lubrication12700.0 r/min
Properties14 parameters
Properties
ParameterSymbolValue
Contact typeNormal contact (two-point contact)
Number of rows1
Ring typeOne-piece inner and outer rings
DesignHigh-speed E
Universal matching bearingNo
Matched arrangementNo
Matched condition (axial clearance/ preload)Not applicable
Tolerance classP4A
Material, bearingHybrid (ceramic balls)
CoatingWithout
SealingSeal on both sides
Sealing typeNon-contact
LubricantGrease
Indicative carbon footprint for new product4.2 kg CO 2 e

Technical documents & data sheet

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Record identity
SKF S7020 ACE/HCP4A
Document matching
Exact designation, assembly scope, revision and units must agree.

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