Comparison : Item # R15-10B1-FSW-189-271-0.018, FSW Type – Standard Ground Ballscrews
Item # R15-10B1-FSW-239-321-0.018, FSW Type – Standard Ground Ballscrews
Item # R15-10B1-FSW-289-371-0.018, FSW Type – Standard Ground Ballscrews
Item # R15-10B1-FSW-339-421-0.018, FSW Type – Standard Ground Ballscrews
Item # R15-10B1-FSW-389-471-0.018, FSW Type – Standard Ground Ballscrews