EN logo ZKL Group

The history is cornerstone of the
present time as well as challenge to the future.

new force

New axle roller bearings for trams

The development of axle roller bearings for trams was completed in the ZKL Klášterec nad Ohří production plant as a proof of the continuous expansion of the range for rolling stock withing the ZKL Group. The pair of PLC 410-77/78 bearings is of the WJ/WJP design type with increased requirements for the accuracy of matching. These bearings were manufactured for the assembly of new trams by a Polish manufacturer.
Technical parameters of the bearings:
Axle diameter: 120 mm
Maximum vehicle speed: 70 km/h
Maximum static load on the bearing pair: 50 kN
Tram wheel diameter: 610/530 mm


ZKL is the biggest manufacturer of large-scale spherical-roller, special and split bearings in Central Europe.

Copyright © 2012 ZKL, a.s.