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LYF 203 2F

Y-Bearing Flanged Units With Square Grey Cast Iron Housing "F"

17mm
d · Bore diameter
54mm
J · Pitch circle diameter
9.56kN
Cdyn · Dynamic load rating
4.75kN
Co · Static load rating
0.48kg
kg · Mass

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Designation: LYF 203 2F

Cross references

ManufacturerDesignation / part number
INARCJ17

Type equivalents according to FKL's interchange table (Ball Bearings and Bearing Units catalogue, section 3.3). Each designation has been checked for this size in that maker's own catalogue; compare the dimensions before ordering.

What the designation means

2F
One lip rubber metal seal + flinger, on both sides
All prefixes and suffixes
LYF 203 2F

Technical specifications

Dimensions and load ratings – symbols refer to the technical drawing.

SymbolParameterValue
dBore diameter17mm
LOverall width76mm
ADistance from the housing flange to the front of the inner ring of the bearing40.4mm
A1Total housing width26mm
A2Housing flange thickness11mm
JPitch circle diameter54mm
NDiameter of attachment slot11.5mm
kgMass0.48kg
CdynDynamic load rating9.56kN
CoStatic load rating4.75kN
PuFatigue load limit0.2kN
Sealing type

F SEAL / F SEAL (2F)

Dual sealing, protection cover placed on the inner ring protects against rough impurity particles and makes the labyrinth with the sheet part of the seal; then the sealing S type, with the labyrinth between the sheet part and the rubber lip that conducts the contact sealing. The friction and speeds are the same as with S but has much better protection against rough impurity particles. It is very good sealing system: the sheet part protects the seal from the soil, dust and rough particles. At the same time makes the labyrinth with the rubber part. The rubber part provides the contact sealing that prevents the penetration of the finer impurities, water, moisture, steam etc. Suitable for heavier conditions due to better protection against foreign matters. It is used with the Y bearings (standard).

Overview of all sealing types
Technical drawing – LYF 203 2F
Technical drawingClick to enlarge