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SKF / Cylindrical roller bearings

SKF NUB 18/1000 MA/HB1

Single row cylindrical roller bearing with extended inner ring, nub design technical reference with manufacturer-sourced dimensions, characteristics and engineering resources.

Technical data available
Bore diameterd
1000 mm
Outside diameterD
1220 mm
WidthB
100 mm
Dynamic load ratingC
2640 kN
Static load ratingC0
6550 kN
Limiting speednG
530 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 specifications14 parameters
Core specifications
ParameterSymbolValue
Variant / constructionCylindrical roller bearings
Bore diameterd1000 mm
Outside diameterD1220 mm
WidthB100 mm
Basic dynamic load ratingC2640 kN
Basic static load ratingC06550 kN
Fatigue load limitPu400 kN
Reference speednref400 r/min
Limiting speednG530 r/min
Mass≈m287 kg
Internal clearanceCN
SealingWithout
CageMachined brass
LubricantNone
Dimensions3 parameters
Dimensions
ParameterSymbolValue
Bore diameter1000.0 mm
Outside diameter1220.0 mm
Width100.0 mm
Product identity5 parameters
Product identity
ParameterSymbolValue
Official product categoryCylindrical roller bearings
Official taxonomy path/products/rolling-bearings/roller-bearings/cylindrical-roller-bearings/single-row-cylindrical-roller-bearings
Structure group IDBC1_001_101
Available from SKFYes
RemanufacturableYes
Engineering — Abutment dimensions5 parameters
Engineering — Abutment dimensions
ParameterSymbolValue
Diameter of spacer sleeved amin. 1023 mm
Diameter of spacer sleeved amax. 1040 mm
Diameter of shaft abutmentd bmin. 1060 mm
Diameter of housing abutmentD amax. 1197 mm
Radius of filletr amax. 5 mm
Engineering — Calculation data8 parameters
Engineering — Calculation data
ParameterSymbolValue
Basic dynamic load ratingC2640 kN
Basic static load ratingC 06550 kN
Fatigue load limitP u400 kN
Reference speed400 r/min
Limiting speed530 r/min
Minimum load factork r0.05
Limiting valuee0.2
Calculation factorY0.6
Engineering — Dimensions8 parameters
Engineering — Dimensions
ParameterSymbolValue
Bore diameterd1000 mm
Outside diameterD1220 mm
WidthB100 mm
Width of outer ringC100 mm
Shoulder diameter of outer ringD 1≈ 1143 mm
Raceway diameter of inner ringF1053 mm
Chamfer dimensionr 1,2min. 6 mm
Permissible axial displacementsmax. 26 mm
Logistics3 parameters
Logistics
ParameterSymbolValue
Product net weight287.0 kg
eClass code23-05-09-01
UNSPSC code31171505
Performance4 parameters
Performance
ParameterSymbolValue
Basic dynamic load rating2640.0 kN
Basic static load rating6550.0 kN
Reference speed400.0 r/min
Limiting speed530.0 r/min
Properties19 parameters
Properties
ParameterSymbolValue
Bearing partComplete bearing
Axial displacement capabilityIn both directions
Number of rows1
Locating feature, bearing outer ringWithout
Bore typeCylindrical
CageMachined brass
Inner ring extensionOn both sides
Number of flanges, outer ring2
Number of flanges, inner ring0
Loose flangeNone
Radial internal clearanceCN
Tolerance classNormal
CoatingWithout
SealingWithout
LubricantNone
Relubrication featureWithout
Candidate for remanufacturingYes
Indicative carbon footprint for new product1062.0 kg CO 2 e
Indicative carbon footprint for remanufactured product353.0 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 NUB 18/1000 MA/HB1
Document matching
Exact designation, assembly scope, revision and units must agree.

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