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SKF / Lock washers

SKF MB 31

Lock washer for metric lock nuts technical reference with manufacturer-sourced dimensions, characteristics and engineering resources.

Technical data available
Bore diameterd
155 mm
Outside diameterD
212 mm
Mass≈m
0.233 kg
Bore diameter
155.0 mm
Outside diameter
212.0 mm

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 specifications4 parameters
Core specifications
ParameterSymbolValue
Variant / constructionLock washers
Bore diameterd155 mm
Outside diameterD212 mm
Mass≈m0.233 kg
Dimensions2 parameters
Dimensions
ParameterSymbolValue
Bore diameter155.0 mm
Outside diameter212.0 mm
Product identity5 parameters
Product identity
ParameterSymbolValue
Official product categoryLock washers
Official taxonomy path/products/rolling-bearings/accessories/lock-nuts/keyway
Structure group IDANL_002
Available from SKFYes
RemanufacturableNo
Engineering — Dimensions6 parameters
Engineering — Dimensions
ParameterSymbolValue
Bore diameterd155 mm
Side face diameterd 1182 mm
Outside diameterd 2212 mm
Thickness materialB2.5 mm
Width inner tabf16 mm
Inside dimension under inner tabM147.5 mm
Logistics3 parameters
Logistics
ParameterSymbolValue
Product net weight0.233 kg
eClass code23-11-07-05
UNSPSC code31163218
Properties1 parameter
Properties
ParameterSymbolValue
Locking deviceLock washer

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 MB 31
Document matching
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