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Product Specifications:
| Item | Spur Gear |
| Bore Size | 1.06" |
| Diametral Pitch | 5 |
| Face Width | 1 3/4" |
| Hub Diameter | 3.38" |
| Keyway | No Kwy Or Setscrew |
| Material | Steel |
| Maximum Torque Rating | 1539 lbs.-in. @ 900 RPM |
| No. Of Teeth | 20 |
| Outside Diameter | 4.4" |
| Pitch Diameter | 4" |
| Pressure Angle | 14.5° |
| Product Datasheet | boston-gear-g101.pdf |
| Setscrew Other | No Setscrew |
Shipping Info:
| Ship weight (kg) | 3.42 |
| Ship height (cm) | 2.54 |
| Ship length (cm) | 2.54 |
| Ship width (cm) | 2.54 |
| Country of Origin | US |
Documentation:
Product Variants
| Product | Model | Diametral Pitch | Pitch Dia. | Hub Dia. | Number Of Teeth | Pressure Angle | Face Width | Bore Dia. | Hub Projection | Price | |
|---|---|---|---|---|---|---|---|---|---|---|---|
![]() |
NK11B | 5 | - | - | - | 14.5° | 1 3/4" | - | - | €242.10 | |
![]() |
NK12B | 5" | 2 2/5" | 1.77" | - | 14.5° | 1 3/4" | 1.063" | 22/25" | €242.10 | |
![]() |
NK14B | 5" | 2 4/5" | 2.17" | - | 14.5° | 1 3/4" | 1.063" | 22/25" | €260.64 | |
![]() |
NK15B | 5 | - | - | 15 | 14.5° | 1 3/4" | - | - | €283.95 | |
![]() |
NK16B | 5 | - | - | 16 | 14.5° | 1 3/4" | - | - | €296.78 | |
![]() |
NK18B | 5" | 3 3/5" | 2.97" | - | 14.5° | 1 3/4" | 1.063" | 22/25" | €332.52 |
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BOSTON GEAR NK20B Spur Gear, 5 Diametral Pitch, 14 1/2 Deg. Pressure Angle, 20 Teeth, Steel
€345.19 /unit






