WJ+WJP 120/240 TNC4 and WJ 130/240 TNC4 bearings

Double-cylindrical roller bearings WJ/WJP designs aremanufactures specially dimensioned ISO bearings and standardized by UIC.

These bearings have polyamide cage and internalgeometry has been optimized to further reduce edge stresses and to improvelubrication and load distribution.

The dimensioning is usually based on a calculatedoperating life of more than 3 million kilometers.

 Utilizablestandards

EN 12080 - Railway applications - Axleboxes - Rollingbearings;

EN 12081 - Railway applications - Axleboxes -Lubricating greases;

EN 12082 - Raiway applications - Axleboxes -Performance testing;

UIC 510-1 - Wagons - Running gear - Normalisation;

UIC 510-2 - Trailing stock: wheels and wheelsets.Conditions concerning the use of wheels of various diameters;

UIC 510-3 - Wagons - strength testing of 2 and 3 axlebogies on test rig;

UIC 515 - Passenger rolling stock - Trailer bogies -Running gear;

UIC 814 - Technical specification for the officialtesting and supply of greases intented for the lubrication of railway vehicleroller bearing axleboxes;

ISO 492 - Rolling bearing - Radial bearing -Tolerances;

ISO 582 - Rolling bearing - Chamfer dimensions -Maximum values;

ISO 5753 - Rolling bearing - Radial internalclearance;