Specification Brand : Boston Gear BulletPoint1 : Left hand spiral miter 90 degree mesh transmits mechanical power between perpendicular shafts BulletPoint2 : Spiral angle of 35 degrees better suits this spiral miter gear for higher speed and larger torque applications than straight miter gears BulletPoint3 : Low carbon steel (.2 percent carbon) for applications where the hardness and strength of higher levels of carbon are not needed to transmit torque and motion BulletPoint4 : Unhardened teeth for 1:1 gear ratio applications where hardness and strength are not needed to transmit torque and motion BulletPoint5 : Bore has keyway and setscrew for use with keyed shaft ExternallyAssignedProductIdentifier1 : 781711123003 ExternallyAssignedProductIdentifier2 : 0781711123003 ItemName : Boston Gear LSA105YAL Miter Gear, 1.000" Bore, 7 Pitch, 21 Teeth, 2.500" Hub Diameter ItemPackageDimensions_Height : 10.414 centimeters ItemPackageDimensions_Length : 10.668 centimeters ItemPackageDimensions_Width : 10.922 centimeters ItemPackageQuantity : 1 ItemTypeKeyword : miter-gears Manufacturer : Boston Gear Material : Alloy Steel ModelNumber : GSS463Y NumberOfItems : 1 NumberOfTeeth : 21 PartNumber : LSA105YAL ProductSiteLaunchDate : 2011-03-10T00:00:01-08:00 Size : 7 Pitch Style : Industrial UnitCount : 1