BC2-0103 Railway Cylindrical Roller Bearings

BC2-0103 is a double-row cylindrical roller bearing specifically engineered for railway traction motor applications. Manufactured from high-quality chrome bearing steel (GCr15), this bearing features two rows of cylindrical rollers with optimized rib contact geometry, delivering exceptional radial load-carrying capacity and high rigidity under heavy alternating load conditions.

The bearing is designed with a separable inner and outer ring structure, facilitating straightforward mounting, dismounting, and on-site inspection — a critical advantage for railway maintenance operations. The cage is typically machined brass or polyamide, ensuring reliable roller guidance and reduced friction at high rotational speeds.

BC2-0103 is commonly deployed as a non-locating bearing in traction motor assemblies, accommodating axial displacement caused by thermal expansion of the motor shaft while maintaining precise radial support. Its robust construction withstands the shock loads, vibration, and variable speed conditions characteristic of electric and diesel-electric locomotive traction motors.

130-220-190

Key Features

• Double-row cylindrical roller design for ultra-high radial load capacity

• Separable inner and outer rings for easy maintenance and inspection

• High-quality chrome bearing steel with precise heat treatment

• Brass or polyamide cage option for reliable high-speed operation

• Optimized rib contact geometry for low friction and long service life

• Suitable for non-locating bearing positions, accommodating thermal expansion

Application

Widely used in railway electric traction motors, diesel-electric locomotive motor suspensions, metro and light rail vehicle drive motors, and other heavy-duty rotating machinery requiring high radial load support with axial displacement compensation.