Find a Service Center
- Cast Iron Material
- 56 Teeth
- 12 Diametral Pitch
- 4.83 in Outside Diameter
- 14.5 Pressure Angle
description
- Boston Gear change gears are used primarily on machine tools to provide different cutting speeds while using a constant speed input. All Boston Gear change gears are manufactured with a double key to accept the compound steel bushings that connect two gears together, allowing them to spin on an intermediate shaft. The change gears we stock range from 20-tooth through 128-tooth gears, in one tooth increments, depending upon the diametrical pitch, for a nearly infinite number of ratio possibilities.
| Keyway | Double Keyway 180° Apart |
| No. of Teeths | 56 |
| Face Width | 0.75 in |
| Bushing Series | None |
| O.D. | 4.83 in |
| Torque at 200 RPM | 442 lb/in |
| Material | Cast Iron |
| Rated Torque [Max] | 279.5 @ 600 rpm |
| Diametral Pitch | 12 |
| Torque at 900 RPM | 216 lb/in |
| Outside Dia. | 4.83 in |
| Bore Size | 1 in |
| No. of Teeth | 56 |
| Set Screw | None |
| Torque at 1800 RPM | N/A |
| Torque at 300 RPM | 377 lb/in |
| Pitch Diameter | 4.667 in |
| Hub Dia. | 2.19 in |
| Hardened Teeth | Without Hardened Teeth |
| Torque at 1200 RPM | 178 lb/in |
| Length Through Bore | 0.75 in |
| Pitch Dia. | 4.667 in |
| Pressure Angle | 14 1/2 degrees |
| Torque at 600 RPM | 275 lb/in |
| Bore Dia. | 1 in |
| Weight | 2.101 LB |
| EAN or UPC | 781711111567 |
