Roulement de roue 30203 NTN

NTN tapered roller bearings utilize conical rollers and raceways, arranged so that the rollers and raceways meet at a common apex. The rollers are guided by contact between the large end of the roller and a rib on the inner ring: this provides high capacity for radial and single thrust loads. NTN’s pioneering efforts in developing crowned rollers have resulted in greater load-carrying capability and longer bearing life. Crowned rollers under load distribute stress equally along their full length of contact with the raceways, thereby eliminating stress concentration at the roller ends: this design concept also compensates for minor misalignment between shaft and housing bore and deflection under load, thereby reducing stress concentration.

Dimensions:

• inner diameter: 17mm
• outer diameter: 40mm
• thickness: 14mm