Ložiskové jednotky NTN-SNR

SNR Industry 25 Axial load capacity of bearing inserts Load carrying capacity and speed limits The axial load capacity of the inserts depends largely on the type of fixing on the shaft. The inner design of the raceways and balls is of little importance in most cases. A further factor is the shaft tolerance used. In order to attain the largest possible axial load capacity for the respective type of fixing, it is necessary that the fixing element (e.g., threaded pin, adapter sleeve) is secured at the specified tightening torque. For running conditions with strong vibrations or shock loads it is recommended to set the inner ring against a shaft shoulder and to secure with a groove nut and lock washer as necessary. In this case, the axial load carrying capacity of the inserts can be fully utilised like with standard deep groove ball bearings. This can amount to up to 0.5-times the radial static load rating C 0r . Such an application should be examined closely taking into consideration the respective load conditions. Load carrying capacity and speed limits of the bearing inserts are specified in the dimension tables starting on page 160. The effect of shaft tolerances on speed limits is shown in the diagram on page 18.