Lubrication hole on inner ring NTN NK47/30R+1R42X47X30 with inner ring

d:42 mm; D:57 mm; C:30 mm; F:47 mm; rs min:0.3 mm; s max:1 mm; Dw:3 mm; Lw:25.4 mm; Lubrication hole on outer ring:Oui/Yes; k:3 mm; Inner ring reference:1R42X47X30; Lubrication hole on inner ring:Non/No; Radial clearance class:CN; Precision class:P0; Mass:0.22 kg; Brand:NTN; Cr:42.5 kN; C0r:91.5 kN;