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Product Specifications:
| Item | Spur Gear |
| Bore Dia. | 3/4" to 13/16" |
| Diametral Pitch | 12 |
| Face Width | 1" |
| Hub Dia. | 1.3906" |
| Hub Projection | 5/8" |
| Hub Type | B |
| Key Way Size | 3/16" x 3/32" |
| Length | 1 5/8" |
| Material | Steel |
| No. Of Teeth | 21 |
| Outside Dia. | 1.917" |
| Pitch Dia. | 1 3/4" |
| Pressure Angle | 20° |
| Product Datasheet | martin-sprocket-c10112.pdf |
| Type | Bored to Size |
Shipping Info:
| Ship weight (kg) | 0.32 |
| Ship height (cm) | 4.14 |
| Ship length (cm) | 4.88 |
| Ship width (cm) | 4.88 |
| Country of Origin | US |
Documentation:
Product Variants
| Product | Model | Pressure Angle | Bore Dia. | Pitch Dia. | Face Width | Outside Dia. | Hub Dia. | Hub Projection | Type | Price | |
|---|---|---|---|---|---|---|---|---|---|---|---|
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S1222BS 5/8 | 14.5° | 5/8" to 7/8" | 1.833" | 3/4" | 2" | 1 9/16" | 1/2" | Bored to Size | €142.07 | |
![]() |
S1218BS 5/8 | 14.5° | 5/8" to 11/16" | 1.4999" | 3/4" | 1.667" | 1 1/4" | 1/2" | Bored to Size | €118.23 | |
![]() |
S1224BS 1 | 14.5° | 1" | 2" | 3/4" | 2.166" | 1 3/4" | 1/2" | Bored to Size External Tooth | €152.63 | |
![]() |
S1224BS 5/8 | 14.5° | 5/8" | 2" | 3/4" | 2.166" | 1 3/4" | 1/2" | Bored to Size External Tooth | €152.63 | |
![]() |
S1222BS 3/4 | 14.5° | 3/4" | 1.833" | 3/4" | 2" | 1.563" | 1/2" | Bored to Size External Tooth | €142.07 | |
![]() |
S1221BS 3/4 | 14.5° | 3/4" | 1 3/4" | 3/4" | 1.917" | 1 1/2" | 1/2" | Bored to Size External Tooth | €127.05 | |
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S1222BS 1 | 14.5° | 1" | 1.833" | 3/4" | 2" | 1 9/16" | 1/2" | Bored to Size | €142.07 |
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Contact us
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MARTIN SPROCKET TS1221BS 3/4 Spur Gear, 12 DP, 20 Deg., 21 Teeth, 1.750 Inch Pitch Dia., Steel
€127.05 /unit




