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Product Specifications:
| Item | Jaw Coupling |
| Coupling Size | 190 |
| Hub Diameter | 4 1/2" |
| Length Through Bore | 1 15/16" |
| Material | Steel |
| Maximum Speed | 3600 RPM |
| Outside Dia. | 4 1/2" |
| Series | MS Super Series |
| Type | Reborable Bore |
Shipping Info:
| Ship weight (kg) | 2.03 |
| Ship length (cm) | 11.43 |
| Ship width (cm) | 11.43 |
| Country of Origin | US |
Product Variants
| Product | Model | Coupling Size | Outside Dia. | Keyway Size | Length Through Bore | Type | Material | Price | |
|---|---|---|---|---|---|---|---|---|---|
![]() |
MS050 1/2 | 050 | 1.063" | - | 5/8" | Finished | Steel | €5.76 | |
![]() |
MS050 5/8 | 050 | 1.063" | - | 5/8" | Bored to Size | Steel | €5.76 | |
![]() |
MS070 1/4 | 070 | 1 3/8" | - | 3/4" | Reborable Straight Jaw | Steel | €9.52 | |
![]() |
MS070 1/2 | 070 | 1 3/8" | - | 3/4" | Finished Straight Jaw | Steel | €9.52 | |
![]() |
MS070 5/8 | 070 | 1 3/8" | - | 3/4" | Bored to Size | Steel | €9.52 | |
![]() |
MS070 3/4 | 070 | 1 3/8" | 3/16" x 3/32" | 3/4" | Finished Straight Jaw | Steel | €9.52 | |
![]() |
MS075 1/4 | 075 | 1 3/4" | - | 13/16" | Reborable Bore | Steel | €11.50 |
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Contact us
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We're available Monday through Friday, from 07:30 until 17:00.
MARTIN SPROCKET MS190BLK 1 3/8 Jaw Coupling, 190 Size, 4.5 Inch Outside Dia., 1.375 Inch Bore, Reborable, Cast Iron
€162.79 /unit



