FREE delivery on orders over €150
Product Specifications:
| Item | Roller Chain Sprocket |
| Bore Type | Bushed |
| Bushing Part Number | SDS |
| Bushing Size | SDS |
| Bushing Type | Type SDS QD |
| Chain Number | 50 |
| Chain Pitch | 5/8" |
| Chain Size | #50 |
| Construction | Solid |
| Construction Type | Solid |
| For Chain Number | 50 |
| For Chain Pitch | 5/8" |
| Hub Configuration | B |
| Hub Dia. | 3 1/4" |
| Hub Outside Dia. | 3 1/4" |
| Individually Packaged | Yes |
| Length Through Bore | 1 3/8" |
| Length Thru Bore | 3/4" |
| Material | Steel |
| Max. Bore Size | 2" |
| Min. Bore Size | 1/2" |
| No. Of Chain Rows | 1 |
| No. Of Teeth | 25 |
| Outside Dia. | 5.322" |
| Pitch | 5/8" |
| Pitch Dia. | 4.9867" , 4.987" |
| Single Strand Tooth Thickness | 0.343" |
| Storage Dimension Height | 13/16" |
| Storage Dimension Length | 5 9/16" |
| Storage Dimension Width | 5 9/16" |
| Type | QD Bushed Type B |
Shipping Info:
| Ship weight (kg) | 0.84 |
| Ship height (cm) | 3.51 |
| Ship length (cm) | 13.51 |
| Ship width (cm) | 13.51 |
| Country of Origin | US |
Product Variants
| Product | Model | Pitch Dia. | Outside Dia. | Length Through Bore | Hub Dia. | Bushing Type | For Chain Number | For Chain Pitch | Bore Dia. | Price | |
|---|---|---|---|---|---|---|---|---|---|---|---|
![]() |
50JA12 | 2.415" | 2.708" | 5/8" | 2" | Type JA QD | 50 | 5/8" | - | €66.70 | |
![]() |
50JA13 | 2.612" | 2.911" | 5/8" | 2" | Type JA QD | 50 | 5/8" | - | €76.26 | |
![]() |
50JA14 | 2.809" | 3.113" | 5/8" | 2 1/8" | Type JA QD | 50 | 5/8" | - | €78.09 | |
![]() |
50JA15 | 3.006" | 3.315" | 5/8" | 2 1/8" | Type JA QD | 50 | 5/8" | - | €82.44 | |
![]() |
50JA16 | 3.204" | 3.517" | 5/8" | 2 1/8" | Type JA QD | 50 | 5/8" | - | €84.57 | |
![]() |
50SH17 | 3.401" | 3.718" | 1 5/16" | 2.688" | Type SH QD | 50 | 5/8" | - | €89.22 | |
![]() |
50SH18 | 3.599" | 3 23/25" | 1 5/16" | 2 7/8" | Type SH QD | 50 | 5/8" | - | €91.31 |
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Contact us
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We're available Monday through Friday, from 07:30 until 17:00.
MARTIN SPROCKET 50SDS25 Sprocket, QD, 50 Chain, 25 Teeth, 4.987 Inch Pitch Dia., 5.322 Inch O.D., Steel
€126.82 /unit







