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Alternate Products
- 8 Diametral Pitch
- 20⁰ Pressure Angle
- 28 Teeths
- Steel Material
description
- Boston Gear spur gears are designed to transmit motion and power between parallel shafts. The different styles offered include spur, gear rack, pinion wire, stem pinions, and internal gears, and most come with a selection of bore diameters, keyways, and setscrews to accommodate a wide variety of application requirements. They are available in plastic, non-metallic, brass, steel, and cast iron and are manufactured in a variety of styles, including plain, web, web with lightening holes, and web with spokes. Many are available with or without hubs.Boston Gear manufactures both 14 1/2° and 20° PA, involute, full-depth system gears. While 20° PA is generally recognized as having a higher load-carrying capacity, 14 1/2° PA gears are used extensively because of lower backlash and smoother, quieter operation.
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
| Pressure Angle | 20 degrees |
| Bore Dia. | 0.875 in |
| O.D. | 3.75 in |
| Rated Torque [Max] | 972 @ 900 rpm |
| Torque at 600 RPM | 1204 lb/in |
| Pitch Dia. | 3.5 in |
| Keyway | w/o Keyway, w/o Setscrew |
| Torque at 300 RPM | 1583 lb/in |
| Torque at 200 RPM | 1768 lb/in |
| Torque at 900 RPM | 972 lb/in |
| Material | Steel |
| Pitch Diameter | 3.5 in |
| No. of Teeth | 28 |
| Bore Size | 0.875 in |
| No. of Teeths | 28 |
| Length Through Bore | 2.375 in |
| Type | A |
| Hardened Teeth | Without Hardened Teeth |
| Hub Dia. | 3.05 in |
| Outside Dia. | 3.75 in |
| Torque at 1800 RPM | N/A |
| Torque at 1200 RPM | 815 lb/in |
| Diametral Pitch | 8 |
| Origin | Reborable |
| Set Screw | No |
| Face Width | 1.5 in |
| Outside Dia. [Min] | 3.75 in |
| Bore Type | Minimum Plain Bore |
| Weight | 5.601 LB |
| EAN or UPC | 781711099964 |
