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BOSTON GEAR NA28B-1/2 Spur Gear, 20 Diametral Pitch, 14 1/2 Deg. Pressure Angle, 28 Teeth, Steel
Item: AK3BXMModel: NA28B-1/2
7 In Stock
1/2"
28
Ships within 2 days via
€94.89 /unit
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Product Specifications:
| Item | Spur Gear |
| Bore Dia. | 1/2" |
| Bore Type | Bored To Size |
| Diametral Pitch | 20 |
| Face Width | 3/8" |
| Hardened Teeth | Without Hardened Teeth |
| Hub Dia. | 1.11" |
| Keyway | With Setscrew |
| Length Through Bore | 3/4" |
| Material | Steel |
| Maximum Rated Torque | 39.2 N-m @ 1800 RPM |
| No. Of Teeth | 28 |
| Outer Dia. | 1 1/2" |
| Pitch Dia. | 1.4" |
| Pressure Angle | 14.5° |
| Product Datasheet | boston-gear-g101.pdf |
| Set Screw | Yes |
| Set Screw Size | 0.5 |
| Torque At 1200 Rpm | 47.5 lbs.-in. |
| Torque At 1800 Rpm | 39.2 lbs.-in. |
| Torque At 200 Rpm | 73.4 lbs.-in. |
| Torque At 300 Rpm | 69.7 lbs.-in. |
| Torque At 600 Rpm | 60.3 lbs.-in. |
| Torque At 900 Rpm | 53.2 lbs.-in. |
| Type | A |
Shipping Info:
| Ship weight (kg) | 0.1 |
| Ship height (cm) | 2.54 |
| Ship length (cm) | 2.54 |
| Ship width (cm) | 2.54 |
| Country of Origin | US |
Documentation:
Product Variants
| Product | Model | Face Width | Diametral Pitch | Pitch Dia. | Hub Dia. | Bore Dia. | Hub Projection | Number Of Teeth | Outside Dia. | Price | |
|---|---|---|---|---|---|---|---|---|---|---|---|
 |
NA12B | 3/8" | 20 | 3/5" | 0.45" | 0.313" | 0.38" | 12 | 0.7" | €48.67 | |
|
NA32 | 3/8" | 20 | 1 3/5" | 1.31" | 3/8" | 0.5" | 32 | 1.7" | €91.19 | |
 |
NA11B | 0.38" | 20 | - | - | - | - | - | - | €43.38 | |
 |
NA13B | 3/8" | 20" | 0.65" | 1/2" | 0.313" | 0.38" | - | - | €46.15 | |
 |
NA14B | 3/8" | 20" | 0.7" | 14/25" | 0.313" | 0.38" | - | - | €49.23 | |
 |
NA15B | 3/8" | 20" | 3/4" | 3/5" | 3/8" | 0.38" | - | - | €50.76 | |
 |
NA16B | 3/8" | 20" | 4/5" | 0.66" | 3/8" | 0.38" | - | - | €52.60 |
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BOSTON GEAR NA28B-1/2 Spur Gear, 20 Diametral Pitch, 14 1/2 Deg. Pressure Angle, 28 Teeth, Steel
€94.89 /unit