Find a Service Center
- Cast Iron Material
- 66 Teeth
- 16 Diametral Pitch
- 4.25 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.
| Length Through Bore | 1 in |
| No. of Teeths | 66 |
| Torque at 1200 RPM | 87.5 lb/in |
| Pitch Dia. | 4.125 in |
| Diametral Pitch | 16 |
| Face Width | 0.5 in |
| Pressure Angle | 14 1/2 degrees |
| Keyway | Double Keyway 180° Apart |
| No. of Teeth | 66 |
| Torque at 600 RPM | 132 lb/in |
| Torque at 300 RPM | 178 lb/in |
| Torque at 200 RPM | 201 lb/in |
| Rated Torque [Max] | 134.3 @ 600 rpm |
| Bushing Series | Ga |
| Bore Size | 0.75 in |
| Set Screw | None |
| O.D. | 4.25 in |
| Bore Dia. | 0.75 in |
| Pitch Diameter | 4.125 in |
| Outside Dia. | 4.25 in |
| Torque at 900 RPM | 105 lb/in |
| Hub Dia. | 1.81 in |
| Torque at 1800 RPM | N/A |
| Material | Cast Iron |
| Hardened Teeth | Without Hardened Teeth |
| Weight | 0.901 LB |
| EAN or UPC | 781711109922 |
