# 9SCH178 9SC-HX1 7/8 SF HUB

**Manufacturer:** TB Woods  
**MPN:** `9SCH178`

## Specifications

| Attribute | Value |
| --- | --- |
| Brand name | TB Woods |
| Manufacturer name | TB Woods |
| Manufacturer | TB Woods |
| CategoryL1 | Shaft Couplings and Collars |
| CategoryL2 | Elastomeric Sleeve Couplings |
| CategoryL3 | Components |
| CategoryL4 | Hubs |
| Extra Product Name | 9SCH178 9SC-HX1 7/8 SF HUB |
| moq | 1 |
| MPN | 9SCH178 |
| multiple | 1 |
| qtyInStock | 0 |
| SKU | 338104 |
| snippet | 9SCH178 9SC-HX1 7/8 SF HUB |
| tierMinQty1 | 1 |
| tierPrice1 | 80.91 |
| Bore size | 1 7/8 in |
| Material type | High strength cast iron |
| Capscrew torque requirement | 31 in-lbs |
| Setscrew size, location | 3/8 16 UNC, over keyseat |
| Setscrew length (in) | 5/8 |
| Max speed | 3750 |
| Setscrew length | 0.625 |
| Max angular gap misalignment | 0.109 (in) with EPDM/Neoprene Sleeves and 0.028 (in) with Hytrel Sleeves |
| Capscrew size (in) | Qty 4 -- 3/8 x 2 3/4 |
| Dimension (in) (H) | 3 5/8 |
| Dimension (in) (S) | 1 1/4 |
| Setscrew Torque Requirment (ft lbs) | 23 |
| Horsepower Rating at 100 RPM | 57 |
| Min compatible bore size | 0.4375 |
| Power rating at 100 RPM | 2.8 kW with EPDM or Neoprene sleeve, 8.5 kW with Hytrel sleeve |
| Screw size | Setscrew |
| Setscrew torque requirement | 23 |
| Max parallel misalignment | 11 |
| Component WR2 (lbs ft2) | 0.0608 |
| Keyseat (in) | 1/2 x 1/4 |
| Capscrew size | Qty 4 -- 3/8 x 2 3/4 |
| Component WR? | 0.0608 |
| Screw type | Hub, spacer |
| Max RPM | 3750 |
| Torque rate | 2,340 (in-lbs) with EPDM or Neoprene sleeve; 7,200 (in-lbs) with Hytrel sleeve |
| Set screw distance | 1.25 |
| Dimension (in) (C) | 1 31/32 |
| Capscrew torque requirment (ft lbs) | 31 |
| SF hub diameter | 3.625 |
| Max angular misalignment | 1? with EPDM/neoprene sleeves and 1/4? with hytrel sleeves |
| Bore tolerance | +.0005 to +.0015 |
| Max compatible bore size | 2.875 |
| Length through bore | 1.96875 |
| Coupling size | 9 |
| Torque | 2,340 in-lb with EPDM or Neoprene sleeve, 7,200 in-lb with Hytrel sleeve |
| Bore size (in) | 1-7/8 |
| Construction type | Finish bore with keyway |
| Keyseat size | 1/2 in x 1/4 in |

## Distributor availability

| Distributor | SKU | Price (USD) | Qty | Stock | MOQ |
| --- | --- | --- | --- | --- | --- |
| MRO Supply | 338104 | 80.91 | 1 | None | 1 |
| Grainger | 32ZT11 |  |  | None | 1 |
| Applied Industrial | 102101162 |  |  | None | 1 |
| Raptor Supplies | AG3EKB | 209.4472575 | 1 | None | 1 |
| sustainablesupply.com | C1677922 | 98.34 | 1 | None | 1 |
| Purvis | 9SC-HX1 7/8 | 115.32 | 1 | None | 1 |
| grainger.ca | WWG32ZT11 | 153.27571108 | 1 | None | 1 |
| Zoro | G8513881 | 80.45 | 1 | 19 | 1 |
| simsupply.com | ZO-G8513881 | 93.42 | 1 | 14 | 1 |

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Structured data: `/python/html6/product/500/91000000/91303000/part_--9SCH178---TBWoods--bd12fd512f.json`  
Search API: https://www.dataalchemy.com/api/  
MCP server: https://www.dataalchemy.com/mcp