"1 INTERNAL AND 1 EXTERNAL RADIAL OIL GROOVE 0.1880 IN. RADIUS 0.1880 IN. DEEP 0.7500 IN. FROM ONE END,1 INTERNAL RADIAL OIL GROOVE 0.1880 IN. RADIUS 0.1880 IN. DEEP 0.5000 IN. FROM OTHER END,4 INTERNAL OIL GROOVES 0.0940 IN. RADIUS 0.0940 IN. DEEP EQUALLY SPACED AT 45 DEG HELIX ANGLE,4 OIL HOLES EQUALLY SPACED IN INTERNAL AND EXTERNAL RADIAL OIL GROOVE"