Martin HM424A Plain Reborable Straight Miter Gear, 4 Diametral Pitch, Right Angle Rotation, 20 deg Pressure Angle, 24 Teeth, 6 in Dia Pitch, 1.333 in W Face, 1.75 to 2.315 in Dia Bore, Carbon Steel
Martin stock miter gears are manufactured from 0.4 carbon steel. The "M" series is furnished unhardened with plain bore. The "HM" series is furnished hardened teeth with plain bore. The "HMK" series is furnished hardened teeth with keyway and setscrew for installation on the shaft. Hardened miter gears have approximately 50% more horsepower capacity and provide greater gear wear than untreated gears. All Martin miter gears are cut with the 20 deg pressure angle system.
Martin Straight Miter Gear, Plain Reborable, 1.75 to 2.315 in Bore Dia, 6.354 in Outside Dia, 1:1 Gear Ratio, 24 Teeth, 4 Diametral Pitch, 6 in, 1.333 in Face Width, Right Angle Direction of Rotation, No Screws, 4 in Hub Dia, 1.938 in Hub Projection, 3-9/16 in Overall Length, 20 deg Pressure Angle, Carbon Steel
| Bore Diameter | : | 1.75 to 2.315 in |
| Diametral Pitch | : | 4 |
| Direction of Rotation | : | Right Angle |
| Face Width | : | 1.333 in |
| Gear Ratio | : | 1:1 |
| Hub Diameter | : | 4 in |
| Hub Projection | : | 1.938 in |
| Hub Type | : | No Screws |
| Material | : | Carbon Steel |
| Number of Teeth | : | 24 |
| Outside Diameter | : | 6.354 in |
| Overall Length | : | 3-9/16 in |
| Pitch Diameter | : | 6 in |
| Pressure Angle | : | 20 deg |
| Series | : | HM |
| Type | : | Plain Reborable |