Characteristic rolling element frequency, BSF NTN HMK2620BV1 Drawn cup needle roller bearings

Fw:26 mm; D:34 mm; C:20 mm; Dw:3 mm; Lw:15.3 mm; Lubrication hole on outer ring:Non/No; Inner ring reference:No; Mass:0.04 kg; Cr:0 kN; C0r:0 kN; Nlim (grease):0 rpm; Min operating temperature, Tmin:-20 °C; Max operating temperature, Tmax:120 °C; Characteristic cage frequency, FTF:0.45 Hz; Character