Boston Miter Gears are designed for the transmission of motion and power between two intersecting shafts positioned at a right angle. Miter Gears are similar to Bevel Gears except Miter Gears are used for 1:1 ratios. Straight tooth Miter Gears are cut with a generated “Coniflex” tooth form providing increased life and quieter operating conditions. Spiral tooth Miter Gears are better suited for higher speeds and high torque applications. And don’t forget Boston Gear Guaranteed Same Day Shipment program – revolutionary premium free guaranteed same day shipment for in-stock items.Straight/Spiral ToothSpiral ToothRatio1:1Product FamilyMiter Gear (Straight & Spiral)Diametrical Pitch10Product DescriptionSpiral Miter Gear, 10 DP, 20 PA, 35 Spiral Angle, 1:1 R, 25 TeethAltra Master No.30216998MaterialSteel, UnhardenedBore Size0.875UPC781711122969Family Id30,067Weight1.251KWY/Setscrew/OtherNo KWY or SetscrewPitch Diameter2.500Outside Diameter2.630No Of Teeth25Mounting Distance2.438Torque Rating126 @1800 RPM MaxUnit Of MeasureEnglish