Specifications :- Testing Capabilities for Bevel & Hypoid Gears: Rolling Qualities Tooth Spacing Tooth Profile Concentricity Backlash Runout SPINDLE RUNOUT: Drive Spindle Bore: Drive Spindle Face: Driven Spindle Bore: Driven Spindle Face: SPECIFICATIONS: Max. Diameter Of Gears: 7-1/2" Range Of Angles: 0 Deg. - 180 Deg. Range Of Pinion Spindle Offset Above/Below Center: 1-1/4" Distance From Center Of Pinion Spindle: To Nose Of Gear Spindle: 7"Max; 0"Min Distance From Center Of Gear Spindle: To Nose Of Pinion Spindle: 7"Max; 1"Min Drive Spindle Speed (900 & 1800 RPM Motor): 1750 RPM & 3500 RPM Diameter Of Taper Hole, Large End: 1-51/64" Taper Per Foot: 1/2" Depth Of Taper: 3" Diameter Of Hole Through Spindle: 1-5/16" Net Weight: 2100 lbs