JNS 18mm tap hole type cam follower with screwdriver slot and crowned outer ring with seals. 18mm stud diameter x 40mm outside diameter x 20mm width x M18X1.5 thread size. Equivalent to IKO CF-RU1-18, NTN KRT40LL. The Cam Followers is a highly rigid bearing, which consist of needle rollers between a shaft and a thick outer ring. The bearing has tap hole for piping, which can be used in a concentrated lubrication system. The thick outer ring is capable of bearing both large radial load and impact load while keeping direct contact with the guiding surface