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Product Specifications:
| Item | Roller Chain Sprocket |
| Bore Dia. | 1/2" to 2" |
| Bore Type | Bushed |
| Bushing Part Number | SDS |
| Bushing Size | SDS |
| Bushing Type | QD SDS |
| Chain Number | 50 |
| Chain Pitch | 5/8" |
| Chain Size | #50 |
| Construction | Welded |
| Construction Type | Welded |
| For Chain Number | 50 |
| For Chain Pitch | 5/8" |
| Hardened Teeth | 1 |
| Hub Configuration | B |
| Hub Dia. | 3 1/4" |
| Hub Outside Dia. | 3 1/4" |
| Individually Packaged | No |
| Length Through Bore | 3/4" |
| Length Thru Bore | 3/4" |
| Material | Steel |
| Max. Bore Size | 2" |
| Min. Bore Size | 1/2" |
| No. Of Chain Rows | 1 |
| No. Of Teeth | 30 |
| Outside Dia. | 6.321" |
| Pitch | 5/8" |
| Pitch Dia. | 5.9792" |
| Product Datasheet | martin-sprocket-100a10.pdf |
| Screw Size | 1/4"-20 |
| Screw Type | UNC |
| Single Strand Tooth Thickness | 0.343" |
| Storage Dimension Height | 3/4" |
| Storage Dimension Length | 6.321" |
| Storage Dimension Width | 6.321" |
| Type | Type B Single Strand Welded Bushed |
Shipping Info:
| Ship weight (kg) | 1.17 |
| Ship height (cm) | 1.91 |
| Ship length (cm) | 16.05 |
| Ship width (cm) | 16.05 |
| Country of Origin | US |
Documentation:
Product Variants
| Product | Model | Pitch Dia. | Outside Dia. | Bore Dia. | Hub Dia. | Length Through Bore | Bushing Type | For Chain Number | For Chain Pitch | Price | |
|---|---|---|---|---|---|---|---|---|---|---|---|
![]() |
50JA12H | 2.4148" | 2.708" | 3/8" to 1 1/4" | 2" | 5/8" | QD JA | 50 | 5/8" | €82.44 | |
![]() |
50JA13H | 2.612" | 2.911" | - | 2" | 5/8" | Type JA QD | 50 | 5/8" | €88.70 | |
![]() |
50JA14H | 2.8087" | 3.113" | 3/8" to 1 1/4" | 2 1/8" | 5/8" | QD JA | 50 | 5/8" | €92.52 | |
![]() |
50JA15H | 3.006" | 3.315" | - | 2 1/8" | 5/8" | Type JA QD | 50 | 5/8" | €96.89 | |
![]() |
50JA16H | 3.2036" | 3.517" | 3/8" to 1 1/4" | 2 1/8" | 5/8" | QD JA | 50 | 5/8" | €98.34 | |
![]() |
50SH17H | 3.401" | 3.718" | - | 2.688" | 1 5/16" | Type SH QD | 50 | 5/8" | €97.07 | |
![]() |
50SH18H | 3.599" | 3 23/25" | - | 2 7/8" | 1 5/16" | Type SH QD | 50 | 5/8" | €110.36 |
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Contact us
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We're available Monday through Friday, from 07:30 until 17:00.
MARTIN SPROCKET 50SDS30H Sprocket, QD, 50 Chain, 30 Teeth, 5.979 Inch Pitch Dia., 6.321 Inch O.D., Steel
€183.27 /unit



