INA NA4903-XL 徑向滾子軸承 17 × 30 × 13 mm

Overview

INA NA4903-XL Radial Roller Bearing is a roller bearing category focused on radial load support. It provides higher load capacity and rigidity than ball bearings for industrial shafts, gears, and roller supports, with needle or cylindrical roller designs selected by space and load requirements.

Rollers make line contact between inner and outer raceways to distribute load. Depending on design, the bearing may include inner rings, cages, or full-complement roller sets to balance speed and load capacity.

Selection guidance

Select by roller type, inner ring requirement, load, speed, lubrication, and available mounting space.