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Product Specifications:
| Item | Spur Gear |
| Bore Dia. | 7/8" |
| Bore Type | Bored To Size |
| Diametral Pitch | 16 |
| Face Width | 1/2" |
| Hardened Teeth | Without Hardened Teeth |
| Hub Dia. | 1.44" |
| Keyway | With Keyway |
| Length Through Bore | 1" |
| Material | Steel |
| Maximum Rated Torque | 72.3 N-m @ 1800 RPM |
| No. Of Teeth | 28 |
| Outer Dia. | 1 7/8" |
| Pitch Dia. | 1 3/4" |
| Pressure Angle | 14.5° |
| Product Datasheet | boston-gear-g101.pdf |
| Set Screw | Yes |
| Set Screw Size | 0.875 |
| Torque At 1200 Rpm | 89.6 lbs.-in. |
| Torque At 1800 Rpm | 72.3 lbs.-in. |
| Torque At 200 Rpm | 149 lbs.-in. |
| Torque At 300 Rpm | 140 lbs.-in. |
| Torque At 600 Rpm | 118 lbs.-in. |
| Torque At 900 Rpm | 102 lbs.-in. |
| Type | A |
Shipping Info:
| Ship weight (kg) | 0.24 |
| Ship height (cm) | 2.54 |
| Ship length (cm) | 2.54 |
| Ship width (cm) | 2.54 |
| Country of Origin | US |
Documentation:
Product Variants
| Model | Diametral Pitch | Face Width | Hub Dia. | Bore Dia. | Pitch Dia. | Hub Projection | Number Of Teeth | Outside Dia. | Price | |
|---|---|---|---|---|---|---|---|---|---|---|
| NB12 B | 16 | 1/2" | 14/25" | 3/8" | - | 0.44" | 12 | 7/8" | €48.17 | |
| NB16B | 16 | 1/2" | 0.81" | 1/2" | 1" | 0.44" | 16 | 1 1/8" | €68.02 | |
| NB18B | 16 | 1/2" | 0.94" | 1/2" | 1 1/8" | 0.44" | 18 | 1 1/4" | €78.08 | |
| NB20B | 16 | 1/2" | 0.95" | 1/2" | 1 1/4" | 0.44" | 20 | 1 3/8" | €88.87 | |
| NB24B | 16 | 1/2" | 1.19" | 1/2" | 1 1/2" | 0.44" | 24 | 1 5/8" | €93.40 | |
| NB30B | 16 | 1/2" | 1 14/25" | 1/2" | 1 7/8" | 0.5" | 30 | 2" | €119.00 | |
| NB32 | 16 | 1/2" | 1.69" | 1/2" | 2" | 0.5" | 32 | 2 1/8" | €120.75 |
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BOSTON GEAR NB28B-7/8 Spur Gear, 16 Diametral Pitch, 14 1/2 Deg. Pressure Angle, 28 Teeth, Steel
€149.81 /unit

