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Product Specifications:
| Item | Sprocket |
| Belt Pitch | 8 mm |
| Belt Width | 0.827" |
| Bore Dia. | 1/2" to 2" |
| Bore Type | TB Bushed |
| Bushing Part No. | 2012 |
| Bushing Type | 2012 |
| Construction Type | Solid |
| Face Width | 1 1/4" |
| Finish | Protective Coating |
| Flange Dia. | 4.41" |
| Flange Outside Dia. | 4.41" |
| Length | 1 1/4" |
| Material | Steel |
| Max. Bore Size | 2" |
| Min. Bore Size | 1/2" |
| No. Of Grooves | 40 |
| No. Of Teeth | 40 |
| Pitch | 8 mm |
| Product Datasheet | martin-sprocket-14mx112s90-4535.pdf |
| Suitable For Use With | Polychain GT2 Belts, Falcon Pd Belts |
| Type | Solid Type AF-1 |
Shipping Info:
| Ship weight (kg) | 0.9 |
| Ship height (cm) | 3.18 |
| Ship length (cm) | 10.03 |
| Ship width (cm) | 10.03 |
| Country of Origin | US |
Documentation:
Product Variants
| Product | Model | Pitch Dia. | No. Of Teeth | Min. Bore Size | Max. Bore Size | Belt Width | Face Width | Bore Type | Construction Type | Price | |
|---|---|---|---|---|---|---|---|---|---|---|---|
![]() |
8MX34S21-1610 | 3.409" | 34 | 1/2" | 1 5/8" | 0.827" | 1 1/5" | Bushed | Solid | €212.67 | |
![]() |
8MX38S21-1610 | 3.81" | 38 | 1/2" | 1 5/8" | 0.827" | 1 1/5" | Bushed | Solid | €227.32 | |
![]() |
8MX53S21-2012 | 5.314" | 53 | 1/2" | 2" | 0.827" | 1 1/4" | Bushed | Solid | €350.36 | |
![]() |
8MX71S36-2517 | 7.118" | 71 | 1/2" | 2 1/2" | 1.417" | 1.86" | Bushed | Solid | €499.75 | |
![]() |
8MX71S21-2517 | 7.118" | 71 | 1/2" | 2 1/2" | 0.827" | 1 1/5" | Bushed | Solid | €447.30 | |
![]() |
8MX90S21-2517 | 9.023" | 90 | 1/2" | 2 1/2" | 0.827" | 1 1/5" | Bushed | Web | €498.64 | |
![]() |
8MX75S21-2517 | 7.519" | 75 | 1/2" | 2 1/2" | 0.827" | 1 1/5" | Bushed | Solid | €447.30 |
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Contact us
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We're available Monday through Friday, from 07:30 until 17:00.
MARTIN SPROCKET 8MX40S21-2012 Sprocket, Bushed, 3.947 Inch Max Bore, 40 Teeth, 4.010 Inch Pitch Dia., Steel
€241.99 /unit



