HARP energy efficient bearing units
2Pages

ENERGY EFFICIENT BEARING UNITS HARP Specially developed and designed for the first time for the 1520 gauge area operating conditions: — cartridge units for axleboxes of freight and passenger railway cars - CRU Duplex K2 and TBU 1520 HARP — cartridge units for axleboxes of locomotives - CRU HARP — sealed units for traction electric motors of locomotives - CRB HARP Provide the following advantages in comparison with traditional cylindrical bearings (CRB): ■ increased maintenance intervals from 800 000 km to 1 000 000 km ■ unique Kluberplex HARP grease - joint development of Kluber Lubrication (Freudenberg Group), Germany, and the UPEC Industrial Group. Resistance to ambient temperatures from -60°C to +150°C, long service lifetime and high energy efficiency ■ optimized design with consideration of high dynamic loads on the rolling stock running gear resulting from the upper track structure ■ high reliability ■ low life cycle cost of a railway car CRU DUPLEX K2 (Cylindrical Roller Unit) Double radial roller bearing with short cylindrical rollers and shields CRU Duplex K2 is designed for installation in axleboxes of freight cars with axle load of 23.5 tonnes and pedestal opening of 320 mm, as well as in the axleboxes of passenger cars. TBU 1520 HARP (Tapered Bearing Unit) Double-row tapered roller bearing unit TBU 1520 HARP is designed for installation in the axleboxes / with adapters of freight cars with axle load of 23.5, 25 tonnes and above and pedestal opening of 260 mm, as well in the axleboxes of passenger cars.

CRU HARP for axleboxes of locomotives Double-row radial roller bearing with short cylindrical rollers, shields and seals CRU HARP is designed for installation in axleboxes of locomotives. AXLEBOX AND ADAPTER WITH ELASTOMERIC PAD One of the R&D projects of the UPEC Joint Engineering Centre (JEC) is dedicated to the optimal design of axlebox (adapter or axlebox housing) with elastomeric pad. The concept of the UPEC JEC comes from the fact that the tapered bearing unit TBU 1520 HARP and adapter (as well as the axlebox housing with the CRU Duplex K2) are two parts of a single axlebox with a...