99,016 bearing records · search, filter and compare

INA / Yoke type track roller

INA RSTO40

Yoke type track roller technical reference with manufacturer-sourced dimensions, characteristics and engineering resources.

Technical data available
Bore diameterd
50 mm
Outside diameterD
80 mm
WidthB
19.8 mm
Dynamic load ratingC
23.7 kN
Static load ratingC0
40 kN
Mass≈m
0.44 kg

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 specifications7 parameters
Core specifications
ParameterSymbolValue
Bore diameterd50 mm
Outside diameterD80 mm
WidthB19.8 mm
Basic dynamic load ratingC23.7 kN
Basic static load ratingC040 kN
Fatigue load limitPu6 kN
Mass≈m0.44 kg
Manufacturer Identity5 parameters
Manufacturer Identity
ParameterSymbolValue
Schaeffler Product Code398581
BrandINA
Base TypeRSTO40
Old Designation["RSTO 40"]
X Life Markingn.r.
Product Identity2 parameters
Product Identity
ParameterSymbolValue
ConstructionYoke type track rollers RSTO.., single row needle roller bearings with particularly thick-walled outer ring, needle roller and cage assembly, without inner ring, without axial guidance of the outer ring, open, inner ring, outer ring and needle roller and cage assembly can be mounted separately
Short DescriptionYoke type track roller
Technical Data10 parameters
Technical Data
ParameterSymbolValue
Under Roller Diameter (Fw)50 mm
Outside Diamater (D)80 mm
Width, Outer Ring (C)19.8 mm
Basic Dynamic Load Rating, Radial (Cr W)23,700 N
Basic Static Load Rating, Radial (C0R W)40,000 N
Speed On Permanent Grease Lubrication (Nd G)850 1/min
Radius Of Outer Ring Outside Profile (R)500 mm
Fatigue Load Limit, Radial (Cur W)6,000 N
Minimum Chamfer Dimension (Rmin)1 mm
Raceway Diameter Outer Ring (E)58 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
INA RSTO40
Document matching
Exact designation, assembly scope, revision and units must agree.

No verified redistributable CAD or manufacturer PDF is registered for this exact model. A catalogue image is not a dimensioned drawing. Missing technical files are not generated or replaced with unrelated models.

Look up another model or check drawing requirements →

Search the consolidated catalogue

Find, filter and compare bearing model data in one place.

Open model search