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- 14 1/2 degrees Pressure Angle
- 16 Diametral Pitch
- Brass Material
- 4.75 in Outside Diameter
description
- Boston Gear's internal gears are spur gears turned "inside out." In other words, the teeth are cut into the inside diameter while the outside diameter is kept smooth. This design allows for the driving pinion to rotate internal to the gear, which, in turn, allows for clean operation. Intended for light duty applications, these gears are available only in brass. When choosing a mating spur gear, always remember that the difference in the number of teeth between the internal gear and pinion should not be less than 15 (14 1/2° PA) or 12 (20° PA).
features
- More cost effective, quieter running and metallic options
- Four ball wear test 40 kg: 63 mm
- Reliability from steel, cast iron and brass
- Parallel shaft applications
- Base oil viscosity: 500 SUS @ 100 °F
| Material | Brass |
| Torque at 1800 RPM | N/A |
| Pressure Angle | 14 1/2 Degrees |
| Torque at 900 RPM | 105 lb/in |
| Torque at 600 RPM | 132 lb/in |
| Torque at 300 RPM | 178 lb/in |
| Face Width | 0.317 in |
| Diametral Pitch | 16 |
| Pitch Diameter | 4 in |
| Pitch Dia. | 4 in |
| No. of Teeth | 64 |
| I.D. | 3.96 in |
| Torque at 200 RPM | 201 lb/in |
| Hardened Teeth | Without Hardened Teeth |
| Torque at 1200 RPM | 87.5 lb/in |
| Outside Dia. | 4.75 in |
| O.D. | 4.75 in |
| No. of Teeths | 64 |
| Weight | 0.601 LB |
| EAN or UPC | 781711120422 |
