FSC-1/4-SP Two-Piece Split Clamp Shaft Collar, 1/4 inch Bore
Available
Two-piece split clamp type shaft collars in imperial sizes FSC-1/4-SP to FSC-2-SP, for shafts with a bore from 1/4 to 2 inch (6.35 to 50.8 mm). A shaft collar is a ring-shaped component used as a mechanical stop, a locating component or a bearing face. A clamp type collar holds the shaft by clamping, so it does not mar the shaft.
A two-piece collar is made in two halves that are joined by clamp screws around the shaft, so it can be fitted and removed without disturbing other components on the shaft. The collars are steel with a black oxide finish, and the table below lists the bore, outside diameter, C dimension and width for each size.
Where this product is used
- Locating gears, sprockets, pulleys and bearings along a shaft
- Mechanical stops and bearing faces where the shaft must not be marked
- Shaft spacers and positioning collars on machinery
- General machinery assembly and maintenance
Features
- Clamp type collar that does not mar the shaft
- Single point faced
- Two-Piece split design
- Steel with a black oxide finish
- 15 imperial sizes, bores 1/4 to 2 inch (6.35 to 50.8 mm)
Key specifications
| Specification | Detail |
|---|---|
| Sizes | FSC-1/4-SP to FSC-2-SP (15 models) |
| Type | Two-Piece split clamp type shaft collar |
| Material | Steel, black oxide finish |
| System | Imperial |
| Bore range | 1/4 to 2 inch (6.35 to 50.8 mm) |
| Outside diameter | 0.625 to 3 inch |
| C | 0.773 to 3.273 inch |
| Width | 0.281 to 0.688 inch |
| Width tolerance | +0.003 to -0.010 in |
Sizes available
View all 15 models
| Part number | Bore (inch) | Bore (mm) | O.D. (inch) | C (inch) | Width (inch) |
|---|---|---|---|---|---|
| FSC-1/4-SP | 1/4 | 6.35 | 0.625 | 0.773 | 0.281 |
| FSC-3/8-SP | 3/8 | 9.52 | 0.875 | 1.027 | 0.343 |
| FSC-1/2-SP | 1/2 | 12.7 | 1.125 | 1.281 | 0.406 |
| FSC-5/8-SP | 5/8 | 15.88 | 1.313 | 1.5 | 0.437 |
| FSC-3/4-SP | 3/4 | 19.05 | 1.5 | 1.808 | 0.5 |
| FSC-7/8-SP | 7/8 | 22.22 | 1.625 | 1.916 | 0.5 |
| FSC-1-SP | 1 | 25.4 | 1.75 | 2.032 | 0.5 |
| FSC-1-1/8-SP | 1-1/8 | 28.57 | 1.875 | 2.14 | 0.5 |
| FSC-1-1/4-SP | 1-1/4 | 31.75 | 2.063 | 2.295 | 0.5 |
| FSC-1-3/8-SP | 1-3/8 | 34.92 | 2.25 | 2.465 | 0.563 |
| FSC-1-1/2-SP | 1-1/2 | 38.1 | 2.375 | 2.578 | 0.563 |
| FSC-1-5/8-SP | 1-5/8 | 41.27 | 2.625 | 2.935 | 0.688 |
| FSC-1-3/4-SP | 1-3/4 | 44.45 | 2.75 | 3.046 | 0.688 |
| FSC-1-7/8-SP | 1-7/8 | 47.62 | 2.875 | 3.16 | 0.688 |
| FSC-2-SP | 2 | 50.8 | 3 | 3.273 | 0.688 |
Selecting and fitting
Choose the collar by shaft diameter. C is the overall size across the clamp, including the screw head area, as shown in the catalogue drawing. The catalogue does not give holding force or clamp screw torque, so contact AIMS if you need either. The manufacturer lists keyway versions, opposing screws and additional sizes for this range. Contact AIMS to ask about availability.
The one-piece version of this collar is on Shaft Collar, One-Piece Split Clamp Type, Black Oxide Steel, Imperial, FSC-1/4-CL to FSC-2-CL. For a collar that locks with a grub screw, see Shaft Collar, Zinc Plated Steel, Set Screw Type, Imperial, FSC-1/4 to FSC-2 or Shaft Collar, 304 Stainless Steel, Set Screw Type, Imperial, SSFSC-3/8 to SSFSC-2.
Slide the collar onto the shaft, set its position and tighten the clamp screw evenly. Because the collar clamps the shaft, it does not need a grub screw to bite into the surface.
Dimensions are as listed in the manufacturer catalogue and are for reference. Contact AIMS to confirm a measurement if it is critical to your application.
Resources
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1/4 in
Model Number: FSC-1/4-SP
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1/2 in
Model Number: FSC-1/2-SP
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1 in
Model Number: FSC-1-SP
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1-1/2 in
Model Number: FSC-1-1/2-SP
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1-1/4 in
Model Number: FSC-1-1/4-SP
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1-1/8 in
Model Number: FSC-1-1/8-SP
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1-3/4 in
Model Number: FSC-1-3/4-SP
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1-3/8 in
Model Number: FSC-1-3/8-SP
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1-5/8 in
Model Number: FSC-1-5/8-SP
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1-7/8 in
Model Number: FSC-1-7/8-SP
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2 in
Model Number: FSC-2-SP
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3/8 in
Model Number: FSC-3/8-SP
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3/4 in
Model Number: FSC-3/4-SP
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5/8 in
Model Number: FSC-5/8-SP
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7/8 in
Model Number: FSC-7/8-SP

