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Alternate Products
- 12 Diametral Pitch
- 20⁰ Pressure Angle
- 21 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
| No. of Teeths | 21 |
| Pitch Dia. | 1.75 in |
| Bore Type | Minimum Plain Bore |
| Hub Dia. | 1.39 in |
| Set Screw | No |
| Type | A |
| Keyway | w/o Keyway, w/o Setscrew |
| Diametral Pitch | 12 |
| Torque at 600 RPM | 327 lb/in |
| Material | Steel |
| Pitch Diameter | 1.75 in |
| Length Through Bore | 1.625 in |
| Torque at 1800 RPM | 201 lb/in |
| Pressure Angle | 20 degrees |
| Bore Size | 0.750 in |
| Torque at 300 RPM | 388 lb/in |
| Set Screw Size | N/A |
| Torque at 1200 RPM | 249 lb/in |
| Hardened Teeth | Without Hardened Teeth |
| Origin | Reborable |
| Outside Dia. | 1.92 in |
| Bore Dia. | 0.75 in |
| Face Width | 1 in |
| O.D. | 1.92 in |
| Rated Torque [Max] | 201 @ 1800 rpm |
| No. of Teeth | 21 |
| Torque at 200 RPM | 413 lb/in |
| Torque at 900 RPM | 282 lb/in |
| Outside Dia. [Min] | 1.92 in |
| Weight | 0.751 LB |
| EAN or UPC | 781711099544 |
