3a thread class right-hand 0.8750" thread length 2.7810" overall length 16 thread quantity per inch olubricationg roove in center of outer raceway bore, lubricator in flanged end of stud, hole reamed in roller end to fit 0.1875 in. special no. 1633 alecial drive fitting cam follower unf thread series
3a thread class right-hand 0.5000" thread length 1.6562" overall length 20 thread quantity per inch lubrication groove in center of outer raceway bore, lubricator in flanged end of stud, hole reamed in roller end to fit 0.1875 in. alemite drive fitting no. 1633 cam follower unf thread series