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Product Specifications:
| Item | Spur Gear |
| Bore Dia. | 7/8" |
| Diametral Pitch | 10" |
| Face Width | 1" |
| Hub Dia. | 2 1/4" |
| Hub Projection | 22/25" |
| Key Way Size | No Keyway Or Set Screw |
| Material | Cast Iron |
| No. Of Teeth | 90 |
| Output Dia. | 9 1/5" |
| Overall Length | 1 7/8" |
| Pitch Dia. | 9" |
| Pressure Angle | 14.5° |
| Product Datasheet | boston-gear-g101.pdf |
| Type | Spoke |
Shipping Info:
| Ship weight (kg) | 3.87 |
| Ship height (cm) | 2.54 |
| Ship length (cm) | 4.76 |
| Ship width (cm) | 2.54 |
| Country of Origin | US |
Documentation:
Product Variants
| Product | Model | Pitch Dia. | No. Of Teeth | Hub Dia. | Bore Dia. | Diametral Pitch | Type | Hub Projection | Keyway | Price | |
|---|---|---|---|---|---|---|---|---|---|---|---|
![]() |
NF40 | 4" | 40 | 2.13" | 7/8" | 10 | - | 0.88" | No | €270.44 | |
![]() |
NF48 | 4 4/5" | 48 | 2.13" | 7/8" | 10 | - | 22/25" | No | €388.24 | |
![]() |
NF42 | 4 1/5" | 42 | 2.13" | 7/8" | 10" | Web | 22/25" | - | €264.51 | |
![]() |
NF45 | 4 1/2" | 45 | 2.13" | 7/8" | 10" | Web | 22/25" | - | €282.60 | |
![]() |
NF50 | 5" | 50 | 2.13" | 7/8" | 10" | Web | 22/25" | - | €296.78 | |
![]() |
NF54 | 5.4" | 54 | 2.13" | 7/8" | 10 | C | - | No Kwy, Setscrew | €310.84 | |
![]() |
NF55 | 5 1/2" | 55 | 2.13" | 7/8" | 10" | Spoke | 22/25" | - | €306.36 |
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BOSTON GEAR NF90 Spur Gear, 10 Diametral Pitch, 14 1/2 Deg. Pressure Angle, 90 Teeth, Cast Iron
€508.25 /unit






