1.Product Overview B45-90E non-standard open deep groove ball bearing, dimension 45mm bore × 100mm outer diameter × 21mm width, dedicated to automobile manual and automatic gearbox differential and intermediate shafts. Open design without rubber seals, equipped with stamped steel cage and C0 standard clearance. It bears radial load and minor bidirectional axial load, runs stably and quietly at high speed under frequent gear shifting vibration. Made of fully quenched GCr15