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FAG / Securing plate

FAG MB21

Securing plate technical reference with manufacturer-sourced dimensions, characteristics and engineering resources.

Technical data available
Bore diameterd
105 mm
Outside diameterD
145 mm
WidthB
1.75 mm
Mass≈m
0.0819 kg
Bore diameterd1
105 mm / 4.134 in
Outside diameterd2
145 mm / 5.709 in

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
Bore diameterd105 mm
Outside diameterD145 mm
WidthB1.75 mm
Mass≈m0.0819 kg
Main Dimensions & Performance Data4 parameters
Main Dimensions & Performance Data
ParameterSymbolValue
Bore diameterd1105 mm4.134 in
Outside diameterd2145 mm5.709 in
Thicknesss1.75 mm0.069 in
Mass≈m81.9 g2.889 oz
Mounting dimensions4 parameters
Mounting dimensions
ParameterSymbolValue
Plant diameter outsided3126 mm4.961 in
Distance lugb212 mm0.472 in
Distance lugM100.5 mm3.957 in
Width lock washer tabb112 mm0.472 in
Manufacturer Identity6 parameters
Manufacturer Identity
ParameterSymbolValue
Schaeffler Product Code417811
BrandFAG
Base TypeMB21
X Life Markingn.r.
SAP material number0382811710000
Base product2309030211_NoSuffix
Product Identity2 parameters
Product Identity
ParameterSymbolValue
ConstructionTab washers MB, main dimensions to DIN 5406
Short DescriptionSecuring plate
Additional information1 parameter
Additional information
ParameterSymbolValue
Counted quantity100
Technical Data7 parameters
Technical Data
ParameterSymbolValue
Outside Diameter (D2)145 mm
Thickness (S)1.75 mm
Distance Lug (B2)12 mm
Distance Lug (M)100.5 mm
Width Lock Washer Tab (B1)12 mm
Plant Diameter Outside (D3)126 mm
Bore Diameter (D1)105 mm

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
FAG MB21
Document matching
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