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INA / Precision locknut

INA ZM120

Precision locknut technical reference with manufacturer-sourced dimensions, characteristics and engineering resources.

Technical data available
Outside diameterD
155 mm
WidthB
24 mm
Mass≈m
1.371 kg
Outside Diamater (D)
155 mm
Total Height (H)
24 mm
Mounting Torque Set Screw (Ma)
20 Nm

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 specifications3 parameters
Core specifications
ParameterSymbolValue
Outside diameterD155 mm
WidthB24 mm
Mass≈m1.371 kg
Manufacturer Identity5 parameters
Manufacturer Identity
ParameterSymbolValue
Schaeffler Product Code408959
BrandINA
Base TypeZM120
Old Designation["ZM 120"]
X Life Markingn.r.
Product Identity2 parameters
Product Identity
ParameterSymbolValue
ConstructionPrecision locknut ZM, accessory ZM..
Short DescriptionPrecision locknut
Technical Data11 parameters
Technical Data
ParameterSymbolValue
Outside Diamater (D)155 mm
Total Height (H)24 mm
Mounting Torque Set Screw (Ma)20 Nm
Plant Diameter Outside (D1)138 mm
Distance Bore (C)12 mm
Width Retaining Slot (B)12 mm
Breakawag (Ml)600 Nm
Hight Retaining Slot (T)5 mm
Mounting Torque Reference (Mal)450 Nm
Breaking Load, Axial (Fab)580,000 N
Mass Moment Of Inertia (Mm)68.4 kg*cm2

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
INA ZM120
Document matching
Exact designation, assembly scope, revision and units must agree.

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