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Product Specifications:
| Item | Shaft Collar |
| Bore Dia. | 1/2" |
| Bore Tolerance | +0.0005" to +0.002" |
| Bore Type | Round Keyed |
| Clearance Dia. | 54.7 mm |
| Clearance Diameter | 1.28" |
| Collar Construction | 2-Piece |
| Collar Material | Aluminum |
| Collar Material Finish | Bright |
| Collar Material Grade | Grade 2024 |
| Collar Outside Diameter | 1 1/8" |
| Collar Style | Clamp |
| Collar Width | 13/32" |
| Dimension Type | Standard |
| For Shaft Diameter | 1/2" |
| Grade | Grade 2024 |
| Included Screws | (2) Hex Socket Cap Screw |
| Keyway Depth | 1/16" |
| Keyway Width | 1/8" |
| Material | Aluminum |
| Maximum Operating Temperature | 225°F |
| Minimum Operating Temperature | -40°F |
| Number Of Pieces | 2 |
| Operating Temp. Range | -40°F to +225°F |
| Outside Dia. | 48 mm |
| Screw Location From Center | 0.41" |
| Screw Material | Alloy Steel |
| Screw Material Finish | Black Oxide |
| Screw Seating Torque | 49 lbs.-in. |
| Screw Size | #6-32 |
| Screw Thread Size | #8-32 |
| Shaft Locking Type | Clamp On |
| Shaft Tolerance | -0.0005" to 0" |
| System Of Measurement | Imperial |
| Width | 15 mm |
| Width Tolerance | -0.01" to +0.003" |
Shipping Info:
| Ship weight (kg) | 0.01 |
| Ship height (cm) | 1.27 |
| Ship length (cm) | 12.7 |
| Ship width (cm) | 7.62 |
| HS code | 8483608000 |
| Country of Origin | US |
Product Variants
| Product | Model | Outside Dia. | Collar Material | Bore Dia. | Screw Material | Shaft Tolerance | Bore Tolerance | Included Screws | Screw Material Finish | Price | |
|---|---|---|---|---|---|---|---|---|---|---|---|
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SPK-10-A | 1.312" | Aluminum | - | Alloy Steel | -0.0005" to 0" | +0.0005" to +0.002" | (2) Hex Socket Cap Screw | Black Oxide | €51.15 | |
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SPK-10-F | 1.312" | Carbon Steel | - | Alloy Steel | -0.0005" to 0" | +0.0005" to +0.002" | (2) Hex Socket Cap Screw | Black Oxide | €45.68 | |
![]() |
SPK-10-SS | 1.312" | Stainless Steel | 5/8" | Stainless Steel | -0.0005" to 0" | +0.0005" to +0.002" | (2) Hex Socket Cap Screw | Bright | €85.53 | |
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SPK-12-A | 1 1/2" | Aluminum | 3/4" | Alloy Steel | -0.0005" to 0" | +0.0005" to +0.002" | (2) Hex Socket Cap Screw | Black Oxide | €53.32 | |
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SPK-12-F | 1 1/2" | Carbon Steel | 3/4" | Alloy Steel | -0.0005" to 0" | +0.0005" to +0.002" | (2) Hex Socket Cap Screw | Black Oxide | €48.82 | |
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SPK-12-SS | 1 1/2" | Stainless Steel | 3/4" | Stainless Steel | -0.0005" to 0" | +0.0005" to +0.002" | (2) Hex Socket Cap Screw | Bright | €90.05 | |
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SPK-16-A | 1 3/4" | Aluminum | 1" | - | -0.0005" to 0" | +0.0005" to +0.002" | (2) Hex Socket Cap Screw | Black Oxide | €58.22 |
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RULAND MANUFACTURING SPK-8-A 1/2 Inch Two-Piece Shaft Collar, Aluminum, Clamp Style With Keyway, 1 1/8 Inch OD, 0.406 Inch Wd.
€47.52 /unit


