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SKF / Spherical roller bearings

SKF 21305 CC

Spherical roller bearings technical reference with manufacturer-sourced dimensions, characteristics and engineering resources.

Technical data available
Bore diameterd
25 mm
Outside diameterD
62 mm
WidthB
17 mm
Dynamic load ratingC
49.1 kN
Static load ratingC0
41.5 kN
Limiting speednG
15000 r/min

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 specifications15 parameters
Core specifications
ParameterSymbolValue
Variant / constructionSpherical roller bearings
Bore diameterd25 mm
Outside diameterD62 mm
WidthB17 mm
Basic dynamic load ratingC49.1 kN
Basic static load ratingC041.5 kN
Fatigue load limitPu4.55 kN
Reference speednref11000 r/min
Limiting speednG15000 r/min
Mass≈m0.267 kg
Precision classNormal
Internal clearanceCN
SealingWithout
CageSheet metal
LubricantNone
Dimensions3 parameters
Dimensions
ParameterSymbolValue
Bore diameter25.0 mm
Outside diameter62.0 mm
Width17.0 mm
Product identity5 parameters
Product identity
ParameterSymbolValue
Official product categorySpherical roller bearings
Official taxonomy path/products/rolling-bearings/roller-bearings/spherical-roller-bearings
Structure group IDBS2_001
Available from SKFYes
RemanufacturableNo
Engineering — Abutment dimensions3 parameters
Engineering — Abutment dimensions
ParameterSymbolValue
Diameter of shaft abutmentd amin. 32 mm
Diameter of housing abutmentD amax. 55 mm
Radius of filletr amax. 1 mm
Engineering — Calculation data10 parameters
Engineering — Calculation data
ParameterSymbolValue
SKF performance classSKF Explorer
Basic dynamic load ratingC49.1 kN
Basic static load ratingC 041.5 kN
Fatigue load limitP u4.55 kN
Reference speed11000 r/min
Limiting speed15000 r/min
Limiting valuee0.3
Calculation factorY 12.3
Calculation factorY 23.4
Calculation factorY 02.2
Engineering — Dimensions10 parameters
Engineering — Dimensions
ParameterSymbolValue
Bore diameterd25 mm
Deviation limits of mid-range bore diametert Δdmp-0.01 to 0 mm
Outside diameterD62 mm
Deviation limits of mid-range outside diametert ΔDmp-0.013 to 0 mm
WidthB17 mm
Deviation limits of ring widtht ΔBs-0.06 to 0 mm
Shoulder diameter of inner ringd 2≈ 35.7 mm
Shoulder/recess diameter of outer ringD 1≈ 50.7 mm
Chamfer dimensionr 1,2min. 1.1 mm
ISO tolerance class for dimensionsNormal
Engineering — Engineering specifications1 parameter
Engineering — Engineering specifications
ParameterSymbolValue
Bore typeCylindrical
Engineering — Radial internal clearance2 parameters
Engineering — Radial internal clearance
ParameterSymbolValue
Minimum initial clearance25 µm
Maximum initial clearance40 µm
Engineering — Tolerances of run-out5 parameters
Engineering — Tolerances of run-out
ParameterSymbolValue
Range of section height at inner ring of assembled bearingt Kia4 µm
Maximum run-out of inner ring side face to the boret Sd8 µm
Range of section height at outer ring of assembled bearingt Kea8 µm
Perpendicularity of outer ring outside surfacet SD4 µm
ISO tolerance class for geometrical tolerancesP5
Logistics3 parameters
Logistics
ParameterSymbolValue
Product net weight0.267 kg
eClass code23-05-09-11
UNSPSC code31171510
Performance5 parameters
Performance
ParameterSymbolValue
Basic dynamic load rating49.1 kN
Basic static load rating41.5 kN
Reference speed11000.0 r/min
Limiting speed15000.0 r/min
SKF performance classSKF Explorer
Properties11 parameters
Properties
ParameterSymbolValue
Number of rows2
Locating feature, bearing outer ringWithout
Bore typeCylindrical
CageSheet metal
Radial internal clearanceCN
Tolerance class for dimensionsNormal
Tolerance class for run-outP5
SealingWithout
LubricantNone
Relubrication featureWithout
Indicative carbon footprint for new product0.99 kg CO 2 e

Technical documents & data sheet

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Record identity
SKF 21305 CC
Document matching
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