42726/BC1B322880/WJ130X250X80/NJ3226X1Railway Cylindrical Roller Bearing
42726 / 36-42726 E2M Railway Cylindrical Roller Bearing
Basic Dimensions (mm)
Bore Diameter (d): 130 mm
Outer Diameter (D): 250 mm
Width (B): 80 mm
Weight: Approx 18.9 kg
Load Ratings & Speed Parameters (Reference Data)
Basic Dynamic Load Rating (Cr): 547 kN
Basic Static Load Rating (Cor): 473 kN
Limiting Speed (Grease): 2200 r/min
Limiting Speed (Oil): 3000 r/min
*Data for reference only, subject to official factory test report
Product Introduction
42726 (36-42726 E2M) is a high-precision single-row cylindrical roller bearing compliant with railway industry standard TB/T 1172-1995. Manufactured with vacuum degassed GCr15 bearing steel, it features high rigidity, low friction and outstanding fatigue resistance. Optimized internal structure enables stable performance under high-speed operation, frequent vibration and alternating heavy loads, perfectly matching railway axle box working conditions.
Equipped with high-strength brass machined cage, this bearing ensures precise roller guidance and excellent shock resistance. Strictly controlled manufacturing tolerance guarantees high running accuracy and long service life. It is mainly designed for bearing radial loads and allows permissible axial displacement, delivering reliable and safe operation for long-distance continuous railway transportation.
Application
Specially developed for railway locomotive and freight wagon axle box assemblies. Widely used in railway rolling stock wheel set support systems, suitable for high-speed, heavy-load and long-cycle railway operating environments.
