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Product Specifications:
| Item | Gear |
| Bore Dia. | 1 1/4" |
| Bushing Series | GA Series |
| Diametral Pitch | 10 |
| Face Width | 1" |
| Hardened Teeth | Without Hardened Teeth |
| Hub Dia. | 3.12" |
| Keyway | Double Keyway 180° Apart |
| Kwy/setscrew/other | With Double Kwy Only |
| Length Through Bore | 2" |
| Material | Cast Iron |
| Maximum Rated Torque | 845.4 N-m @ 300 RPM |
| Maximum Torque Rating | 845.4 lbs.-in. @ 300 RPM |
| No. Of Teeth | 77 |
| Outer Dia. | 7.9" |
| Pitch Dia. | 7.7" |
| Pressure Angle | 14.5° |
| Product Datasheet | boston-gear-g101.pdf |
| Torque At 200 Rpm | 958 lbs.-in. |
| Torque At 300 Rpm | 803 lbs.-in. |
| Torque At 600 Rpm | 541 lbs.-in. |
Shipping Info:
| Ship weight (kg) | 2.61 |
| 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 | Hub Dia. | Pitch Dia. | Type | Pressure Angle | Bore Dia. | Face Width | Material | Price | |
|---|---|---|---|---|---|---|---|---|---|---|---|
![]() |
GF32B | 10" | 1.94" | 3 1/5" | Plain | 14.5° | 1 1/4" | 1" | Cast Iron | €275.00 | |
![]() |
GF33B | 10" | 1.94" | 3.3" | Plain | 14.5° | 1 1/4" | 1" | Cast Iron | €275.00 | |
![]() |
GF34B | 10" | 1.94" | 3 2/5" | Plain | 14.5° | 1 1/4" | 1" | Cast Iron | €282.25 | |
![]() |
GF35B | 10" | 1.94" | 3 1/2" | Plain | 14.5° | 1 1/4" | 1" | Cast Iron | €282.25 | |
![]() |
GF36B | 10 | 1.94" | 3.6" | - | 14.5° | 1 1/4" | 1" | Cast Iron | €295.24 | |
![]() |
GF38B | 10" | 1.94" | 3 4/5" | Plain | 14.5° | 1 1/4" | 1" | Cast Iron | €297.50 | |
![]() |
GF39B | 10" | 1.94" | 3.9" | Plain | 14.5° | 1 1/4" | 1" | Cast Iron | €297.50 |
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Contact us
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We're available Monday through Friday, from 07:30 until 17:00.
BOSTON GEAR GF77A Change Gear, 10 Diametral Pitch, 14 1/2 Deg. Pressure Angle, 77 Teeth, Cast Iron
€495.56 /unit







