RAILWAY
NSK Bearings for the Railway Industry
Railway bearings are important safety-critical components. They have a direct influence on the safe operation of railways and must comply with the highest safety requirements.
While maintaining their reliability, it is important to further reduce their size and make them even more light-weight to save energy and to contribute to the environmentally friendly operation of railways.
The bearings selected for the bullet trains must be highly efficient and durable and must pass strict quality controls.
RCT Bearings – Sealed-Clean Rotating End Cap TRB
Axle bearings directly support the axle and operate in harsh environments where vibrations between the rail and the wheel are transferred directly to the bearing. NSK’s RCT bearings have high integration with peripheral components and have advanced sealing mechanisms. NSK RCT bearings provide exceptional performance, durability and ease of handling.
Ceramic Coated Insulated Bearings
Ceramic coated insulated bearings with proven safety and lightness for the traction motors. This product helps to enhance reliability and prevents the occurrence of electrolytic corrosion, a factor which reduces bearing service life. This type of corrosion is caused by sparking in the bearings of electric motors where electric current flows.
Cylindrical Roller Bearings
The main advantages of Cylindrical Roller Bearings are their high speed capability, easy maintenance and ability to either allow or restrict axial movement. NSK’s CRB bearings have a smaller outer diameter and a lower weight than Tapered or Spherical Roller Bearings for the same load capacity. They allow the free setup of their axial clearance.
High Performance Railway Axle Bearings
Oil bath double row cylindrical roller bearings for the axle bearings. This product generates little heat in the bearing, enabling high-speed rotation. It also ensures a long service life for the bearing, an important factor for trains that travel long distances.
High-strength retainers, with soft nitriding treatment for outstanding shock resistance for gear units.This product contributes to enhancing the reliability of traction motor bearings which are subject to significant vibration.