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Product Specifications:
| Item | Spur Gear |
| Bore Dia. | 5/8" |
| Bore Type | Minimum Plain Bore |
| Diametral Pitch | 20 |
| Face Width | 1/2" |
| Hardened Teeth | Without Hardened Teeth |
| Hub Dia. | 1.38" |
| Key Way Size | No Keyway Or Set Screw |
| Keyway | No Kwy, Setscrew |
| Length Through Bore | 1 1/8" |
| Material | Cast Iron |
| Max. Rated Torque | 106 N-m @ 900 RPM |
| Max. Torque | 106 lbs.-in. @ 900 RPM |
| No. Of Teeth | 84 |
| Origin | Reborable |
| Outside Dia. | 4.23" |
| Pitch Dia. | 4.2" |
| Pressure Angle | 20° |
| Product Datasheet | boston-gear-g101.pdf |
| Set Screw | No |
| Style | Hub |
| Torque @ 1200 Rpm | 87.8 lbs.-in. |
| Torque @ 200 Rpm | 206 lbs.-in. |
| Torque @ 300 Rpm | 181 lbs.-in. |
| Torque @ 600 Rpm | 134 lbs.-in. |
| Torque @ 900 Rpm | 106 lbs.-in. |
| Type | B |
Shipping Info:
| Ship weight (kg) | 0.63 |
| Ship height (cm) | 2.54 |
| Ship length (cm) | 2.54 |
| 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 | |
![]() |
YA90 | 4 1/2" | 90 | 1.38" | 20" | Web | - | - | - | €189.49 | |
![]() |
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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We're available Monday through Friday, from 07:30 until 17:00.
BOSTON GEAR YA84 Spur Gear, 20 Diametral Pitch, 20 Deg. Pressure Angle, 84 Teeth, Cast Iron
€186.66 /unit







