# OF-SP-28-A, 1 3/4" Two-Piece Shaft Collar, Aluminum | Ruland

**Manufacturer:** Ruland  
**MPN:** `OF-SP-28-A`

## Specifications

| Attribute | Value |
| --- | --- |
| Brand name | Ruland |
| Manufacturer name | Ruland |
| Manufacturer | Ruland |
| DimensionUnit | inch |
| Extra Product Name | OF-SP-28-A, 1 3/4" Two-Piece Shaft Collar, Aluminum \| Ruland |
| UPC | 634529220122 |
| Weight | 0.240700 |
| WeightUnit | lbs |
| Weight_Attrib | Weight (lbs) |
| countryOfOrigin | USA |
| diameter | 3.046 |
| height | 3.046 |
| height_Attrib | Clearance Diameter (C) MAX |
| keywords | OF-SP-28-A Shaft Collar, One-Piece Shaft Collar |
| length | 3.046 |
| length_Attrib | Clearance Diameter (C) MAX |
| moq | 1 |
| MPN | OF-SP-28-A |
| multiple | 1 |
| qtyInStock | -2 |
| qtySource | FieldMap |
| SKU | OF-SP-28-A |
| tierMinQty1 | 1 |
| tierMinQty2 | 50 |
| tierMinQty3 | 100 |
| tierPrice1 | 57.38 |
| tierPrice2 | 52.57 |
| tierPrice3 | 31.57 |
| width | 0.688 |
| width_Attrib | Width (W) |
| Bore (B) | 1.7500 in |
| Bore Tolerance | +0.0020 in / +0.0005 in |
| Outer Diameter (OD) | 2 3/4 in |
| Clearance Diameter (C) MAX | 3.046 in |
| Width (W) | 0.688 in |
| Width Tolerance | +0.003 in / -0.010 in |
| Threaded Mounting Hole | 5/16-24 |
| Distance Across Flats (F) | 2.563 in |
| Flat to Bore FB | 0.4 in |
| Recommended Gap | 0.125 in |
| Recommended Shaft Tolerance | +0.0000 in / -0.0005 in |
| Forged Clamp Screw | 5/16-24 |
| Screw Material | Alloy Steel |
| Hex Wrench Size | 1/4 in |
| Screw Finish | Black Oxide |
| Seating Torque | 325 lb-in |
| Screw Location (R) | 1.125 in |
| Number of Screws | 2 ea |
| Material Specification | 2024-T351 Aluminum Bar |
| Temperature | -40°F to 225°F (-40°C to 107°C) |
| Finish Specification | Bright, No Plating |
| Country of Origin | USA |
| Weight (lbs) | 0.240700 |
| Tariff Code | 8483.60.8000 |
| UNSPC | 31162811 |
| Note 1 | Additional mounting hardware not included. |

## Distributor availability

| Distributor | SKU | Price (USD) | Qty | Stock | MOQ |
| --- | --- | --- | --- | --- | --- |
| Ruland | OF-SP-28-A | 57.38 | 1 | None | 1 |
| Digi-Key | 13597461 | 84.58 | 1 | 10 | 1 |
| Allied Electronics | 72623407 |  |  | None | 1 |
| cbtcompany.com | OF-SP-28-A |  |  | None | 1 |
| Zoro | G7102650 | 60.31 | 1 | None | 1 |
| us.rs-online.com | 72623407 | 87.11 | 1 | None | 1 |

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