Barber Colman 1656 Universal Gear Hobber Serial # 3135R84 1984 16” Swing X 56” Part Length For Producing Highly Accurate Spur, Helical and Pinion Gears including Splines & Other Profiles. SPECIFICATIONS: Maximum Work Diameter: 16” Coarsest Pitch One Cut in Steel: 6 DP Work Spindle Bore: 4 1/8” Maximum Travel of Hobb Carriage: 56” Maximum Distance Work Spindle Face to Centerline of Hobb Spindle: Minimum: 3 ½" Maximum: 59 ½" Centerline of Work Spindle to Centerline of Hobb Spindle: Minimum: ½" Maximum: 8 ½" Maximum Hobb Diameter: 5” Hobb Speed: 425 RPM Feed Ranges: 0.15 - .015 IPR Approx. Floor Space: 122” X 38” Approx. Height: 76” Approx. Weight: 10,000 lbs. Equipped with: Double Thread Index Worm Automatic Hobb Shift Complete Hobb Slide with Extra Hobbs Hobb Arbor & Support Electric Panel Attached to Machine with Allen Bradley Controls Dwell timer Tailstock Over Arm Support Built-In coolant system Change Gears in Machine Assortment of Extra Change Gears (Separate) Jacobs Collet Chuck Automatic Way Lubrication