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Product Specifications:
| Item | Spur Gear |
| Bore Dia. | 5/8" |
| Diametral Pitch | 20" |
| Face Width | 1/2" |
| Hub Dia. | 1.38" |
| Hub Projection | 0.62" |
| Key Way Size | No Keyway Or Set Screw |
| Material | Cast Iron |
| No. Of Teeth | 90 |
| Output Dia. | 4.53" |
| Overall Length | 1 3/25" |
| Pitch Dia. | 4 1/2" |
| Pressure Angle | 20° |
| Product Datasheet | boston-gear-g101.pdf |
| Type | Web |
Shipping Info:
| Ship weight (kg) | 0.68 |
| Ship height (cm) | 2.54 |
| Ship length (cm) | 2.84 |
| Ship width (cm) | 2.54 |
| Country of Origin | US |
Documentation:
Product Variants
| Product | Model | Pitch Dia. | No. Of Teeth | Hub Dia. | Diametral Pitch | Type | Length Through Bore | Max. Torque | Torque @ 200 Rpm | Price | |
|---|---|---|---|---|---|---|---|---|---|---|---|
![]() |
YA80 | 4" | 80 | 1.38" | 20" | Web | - | - | - | €171.86 | |
![]() |
YA84 | 4.2" | 84 | 1.38" | 20 | B | 1 1/8" | 106 lbs.-in. @ 900 RPM | 206 lbs.-in. | €186.66 | |
![]() |
YA100 | 5" | 100 | 1 1/2" | 20" | Web | - | - | - | €204.12 | |
![]() |
YA120 | 6" | 120 | 1 1/2" | 20" | Spoke | - | - | - | €261.84 | |
![]() |
YA140 | 7" | 140 | 1 1/2" | 20" | Spoke | - | - | - | €384.83 | |
![]() |
YA160 | 8" | 160 | 1 1/2" | 20 | D | 1 1/8" | 276 lbs.-in. @ 300 RPM | 333 lbs.-in. | €824.18 | |
![]() |
YA180 | 9" | 180 | 1 3/4" | 20 | D | 1 1/4" | 292 lbs.-in. @ 300 RPM | 356 lbs.-in. | €828.80 |
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Contact us
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BOSTON GEAR YA90 Spur Gear, 20 Diametral Pitch, 20 Deg. Pressure Angle, 90 Teeth, Cast Iron
€189.49 /unit







