Milling Machine Arbors - Style B Arbor No.: 51-B3-1/2, Taper: 50, Arbor Dia (d): 1", Length(L): 3-1/2

FOR 30 40 50 NATIONAL STANDARD TAPER SPINDLES - Provided with End Pilot 23-32 x 1-3/4" Milling Machine Arbors are made of top quality one piece forgings. Carefully heat treated and surfaces ground with extremely narrow tolerances assure a rigid setup and accurate machining operations. All threads are ground. Arbors are equipped with assorted solid spacers and necessary running bushings with standard keyways and threaded arbor nut. Drawbar Threads for: #30=1/2 - 13 / #40=5/8 - 11 / #50=1 - 8 Arbor #-3 = 1-7/8 x 3-1/8" Running Bushing (D x L) Arbor #-4 = 2-1/8 X 3-3/4" Running Bushing (D x L) Arbor #-5 = 2-3/4 x 4-1/4" Running Bushing (D x L) Arbor #-6 = 3-3/8 x 4-1/4" Running Bushing (D x L Also available; Arbor Nuts, Arbor Spacers, Running Bushings; please inquire.