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Product Specifications:
| Item | Spacer Hub |
| Bore Dia. | 7/8" |
| Bore Size | 7/8" |
| Bore Tolerance | +0.0005" to +0.0015" |
| Bore Type | Finished With Keyway |
| Coupling Size | 8 |
| Hub | Spacer Hub |
| Hub Dia. | 3 1/4" |
| Keyseat Size (in.) | 3/16" x 3/32" |
| Keyway Size | 3/16" x 3/32" |
| Length Through Bore | 1.219" |
| Material | Cast Iron |
| Max. Angular Gap Misalignment | 0.094" |
| Max. Angular Misalignment | 1° |
| Max. Parallel Misalignment | 1/50" |
| Max. Speed | 4500 RPM |
| Product Type | Sure-Flex Type SC Spacer Hub |
| Rated Torque | 1475 lbs.-in. |
| Set Screw Distance | 1/2" |
| Set Screw Thread Size | 3/8"-16 |
| Set Screw Thread Type | Coarse |
| Setscrew | 3/8-16 UNC |
| Setscrew Length | 1" |
| Setscrew Location | Over Keyseat |
| Size | 8" |
| Torque | 1028 N-m |
Shipping Info:
| Ship weight (kg) | 0.9 |
| Ship height (cm) | 8.26 |
| Ship length (cm) | 2.54 |
| Ship width (cm) | 2.54 |
Product Variants
| Product | Model | Coupling Size | Length Through Bore | Max. Parallel Misalignment | Bore Dia. | Max. Speed | Outside Dia. | Bore Tolerance | Setscrew Length | Price | |
|---|---|---|---|---|---|---|---|---|---|---|---|
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4JSC3558 | 4 | 1 1/16" | 0.01" | 5/8" | 7600 RPM | 1.063" | +0.0005" to +0.0015" | 1/4" | €111.71 | |
![]() |
4JSC351 | 4 | 1 1/16" | 0.01" | 1" | 7600 RPM | 1.063" | +0.0005" to +0.0015" | 1/4" | €111.71 | |
![]() |
4JSC35118 | 4 | 1 1/16" | 0.01" | 1 1/8" | 7600 RPM | 1.063" | +0.0005" to +0.0015" | 0.188" | €114.31 | |
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5SCHMPB | 5 | 1 3/32" | 0.015" | 1/2" | 7600 RPM | 1.094" | +0.0005" to +0.0015" | 3/8" | €111.61 | |
![]() |
5SCH78 | 5 | 1 3/32" | 0.015" | 7/8" | 7600 RPM | 1.094" | +0.0005" to +0.0015" | 1/2" | €114.14 | |
![]() |
5SCH1 | 5 | 1 3/32" | 0.015" | 1" | 7600 RPM | 1.094" | +0.0005" to +0.0015" | 3/8" | €114.35 | |
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5SCH118 | 5 | 1 3/32" | 0.015" | 1 1/8" | 7600 RPM | 1.094" | +0.0005" to +0.0015" | 3/8" | €118.56 |
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Contact us
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TB WOODS 8SCHS78 Sure-Flex Type SC Spacer Hub, High Strength Cast Iron, 8 Size, 0.875 inch Bore Dia.
€96.28 /unit


