Mining Crusher Spherical Roller Bearing Heavy Industrial
Mô tả sản phẩm
1. Product Overview The 21311E is double row E-type optimized high-capacity spherical roller bearing with straight cylindrical bore, standard dimension 55×120×29mm. Suffix E stands for upgraded internal geometry without inner ring center rib, fitted with longer crowned rollers and two stamped steel cages, boosting dynamic load capacity by 20%~30% vs standard series. Spherical outer raceway delivers strong self-aligning performance to offset shaft deflection and assembly