BOSTON GEAR 231D-20 Hollow Output Shaft Helical Reducer, 20:1 Ratio, No Base
Get it by Monday, Dec 22
€4,235.12 /unit
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Product Specifications:
| Item | Reducer |
| Center Distance | 3.11" |
| Diameter | 8 22/25" |
| Efficiency | 96% |
| Finish | Standard Paint |
| Gear Ratio | 20:1 |
| Input Dia. | 15/16" |
| Input Rpm | 87 RPM |
| Input Style | Projecting Shaft |
| Lubrication | Klubersynth UH1 6-460 |
| Material | Cast Iron |
| Max. Input Hp | 2.43 hp |
| Motor Hp | 3 hp |
| Mounting Type | No Base |
| Output Dia. | 1 7/16" |
| Output Hp | 2.33 hp |
| Output Type | Hollow Bore Shaft |
| Product Datasheet | boston-gear-221d-10.pdf |
| Product Series | 200 Series |
| Reduction Type | Double |
| Torque Rating | 1679 lbs.-in. |
| Type | Double Reduction Non Flanged |
| Width | 8.37" |
Shipping Info:
| Ship weight (kg) | 25.7 |
| Ship height (cm) | 2.54 |
| Ship length (cm) | 2.54 |
| Ship width (cm) | 2.54 |
| Country of Origin | US |
Documentation:
Product Variants
| Product | Model | Gear Ratio | Max. Input Hp | Type | Input Power | Input Rpm | Output Type | Finish | Material | Price | |
|---|---|---|---|---|---|---|---|---|---|---|---|
![]() |
221D-10 | - | - | No Base/No Input Flange | 1.15 hp | - | - | - | - | €3,092.45 | |
![]() |
221D-14 | - | - | No Base/No Input Flange | 0.8 hp | - | - | - | - | €3,092.45 | |
![]() |
221D-20 | - | - | No Base/No Input Flange | 0.57 hp | - | - | - | - | €3,092.45 | |
![]() |
221D-24 | - | - | No Base/No Input Flange | 0.5 hp | - | - | - | - | €3,092.45 | |
![]() |
221S-4 | 4:1 | 2 1/50 hp | Single Reduction Non Flanged | - | 431 RPM | Hollow Bore Shaft | Standard Paint | Cast Iron | €2,550.99 | |
![]() |
226D-10 | 10:1 | 2 9/10 hp | Double Reduction Non Flanged | - | 178 RPM | Hollow Bore Shaft | Standard Paint | Cast Iron | €3,712.71 | |
![]() |
226D-14 | - | - | No Base/No Input Flange | 1.43 hp | - | - | - | - | €3,712.71 |
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BOSTON GEAR 231D-20 Hollow Output Shaft Helical Reducer, 20:1 Ratio, No Base
€4,235.12 /unit







