INA Track Roller, Stud, Series: KR Series, 30 mm Roller Dia, 14 mm Roller Width, 12 mm Stud Dia, 25 mm Stud Length, M12 x 1.5, 13 mm Thread Length, 6800 N Dynamic/8600 N Static/1220 N Fatigue, 5500 rpm Maximum, -30 to 140 deg C, Sealed Closure, Hex, Uncoated