Barber - Colman Horizontal Gear Hobbing Machine Model 6-10 s/n 4547 This Barber-colman machine possesses almost all the finer options and later style design the OEM had to offer at the time of its manufacturing. The C-Frame style machine and V-way construction should give you a quality spline or gear thru-out its entire service life. Machine Specifications are as follows: MAXIMUM WORK DIAMETER:....................................................6" MAXIMUM TRAVEL OF HOB CARRIAGE:......................................10-1/2" MAXIMUM DIST. SPINDLE FACE TO TAILSTOCK CENTER:......................15-3/4" MAXIMUM DIAMETRAL PITCH, 1 CUT:.........................16 DP - 2" DIAMETER MAXIMUM DIAMETRAL PITCH,1 CUT:..........................48 DP - 6" DIAMETER MAXIMUM HOB DIAMETER:................................................2-1/16" HOB SPEED:....................................................133 - 533 RPM WORK SPINDLE BORE:...................................................1-1/32" WEIGHT OF MACHINE:................................................3,500 LBS. MACHINE IS EQUIPPED WITH: Triple Thread Standard Worm Bayonet Center Manual hob shift 3-Jaw precision chuck Standard hob head  Change Gears 1 Hob Arbor 220/440 power  Machine can be inspected under power in good mechanical condition at our Statesville, NC. shop. Contact us for any further information you require.