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Product Specifications:
| Item | Spur Gear |
| Bore Dia. | 7/8" |
| Diametral Pitch | 12 |
| Face Width | 3/4" |
| Hub Dia. | 1 1/2" |
| Hub Projection | 1/2" |
| Hub Type | B |
| Key Way Size | 0.1875" x 0.0938" |
| Length | 1 1/4" |
| Material | Steel |
| No. Of Teeth | 21 |
| Pitch Dia. | 1 3/4" |
| Pressure Angle | 14.5° |
| Type | Bored to Size External Tooth |
Shipping Info:
| Ship weight (kg) | 0.22 |
| Ship height (cm) | 3.18 |
| Ship length (cm) | 4.88 |
| Ship width (cm) | 4.88 |
| Country of Origin | US |
Product Variants
| Product | Model | Pitch Dia. | Pressure Angle | No. Of Teeth | Face Width | Hub Dia. | Bore Dia. | Type | Hub Projection | Price | |
|---|---|---|---|---|---|---|---|---|---|---|---|
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S1222BS 5/8 | 1.833" | 14.5° | 22 | 3/4" | 1 9/16" | 5/8" to 7/8" | Bored to Size | 1/2" | €142.07 | |
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S1218BS 5/8 | 1.4999" | 14.5° | 18 | 3/4" | 1 1/4" | 5/8" to 11/16" | Bored to Size | 1/2" | €118.23 | |
![]() |
S1224BS 1 | 2" | 14.5° | 24 | 3/4" | 1 3/4" | 1" | Bored to Size External Tooth | 1/2" | €152.63 | |
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S1224BS 5/8 | 2" | 14.5° | 24 | 3/4" | 1 3/4" | 5/8" | Bored to Size External Tooth | 1/2" | €152.63 | |
![]() |
S1222BS 3/4 | 1.833" | 14.5° | 22 | 3/4" | 1.563" | 3/4" | Bored to Size External Tooth | 1/2" | €142.07 | |
![]() |
S1221BS 3/4 | 1 3/4" | 14.5° | 21 | 3/4" | 1 1/2" | 3/4" | Bored to Size External Tooth | 1/2" | €127.05 | |
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S1222BS 1 | 1.833" | 14.5° | 22 | 3/4" | 1 9/16" | 1" | Bored to Size | 1/2" | €142.07 |
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MARTIN SPROCKET S1221BS 7/8 Spur Gear, 12 DP, 14.5 Deg., 21 Teeth, 1.750 Inch Pitch Dia., Bore To Size, Steel
€127.05 /unit





