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Shaft Collars collar in shellShaft Collar in Shell
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SPK - Two-Piece Keyed Shaft Collar

Two Piece Keyed Shaft Collar

Features

  • Does not mar the shaft
  • Superior fit, finish and holding power
  • Opposing screws available
  • RoHS2 and REACH Compliant
  • Width tolerance: +.003”/-.010”
  • Bore tolerance: +.002"/+.0005"
  • Temperature Range (Deg. F)
    Steel: -40° to 350°
    Aluminum: -40° to 225°
    Stainless: -40° to 350°
  • Additional sizes available on request

How to Specify

Choose bore size and material type.
Part numbers are in the following format with numbers representing sixteenths of an inch:

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  Click part number for full technical specs, CAD files, and pricing
Steel Aluminum Stainless
Steel
Bore
B (in)
Keyway
K (in)
Outer Diameter
OD (in)
Screw
Location
R (in)
Clearance
Diameter
C (in)
Width
W (in)
Forged
Clamp Screw
SPK-6-F SPK-6-A SPK-6-SS 0.3750 3/32 7/8 0.313 1.027 0.343 #6-32X3/8
SPK-8-F SPK-8-A SPK-8-SS 0.5000 1/8 1 1/8 0.406 1.281 0.406 #8-32X1/2
SPK-10-F SPK-10-A SPK-10-SS 0.6250 3/16 1 5/16 0.479 1.500 0.437 #10-32X1/2
SPK-12-F SPK-12-A SPK-12-SS 0.7500 3/16 1 1/2 0.545 1.808 0.500 1/4-28X5/8
SPK-16-F SPK-16-A SPK-16-SS 1.0000 1/4 1 3/4 0.678 2.032 0.500 1/4-28X11/16
SPK-20-F SPK-20-A SPK-20-SS 1.2500 1/4 2 1/16 0.828 2.295 0.500 1/4-28X11/16
SPK-24-F SPK-24-A SPK-24-SS 1.5000 3/8 2 3/8 0.984 2.578 0.563 1/4-28X3/4
SPK-28-F SPK-28-A SPK-28-SS 1.7500 3/8 2 3/4 1.125 3.046 0.688 5/16-24X7/8
SPK-32-F SPK-32-A SPK-32-SS 2.0000 1/2 3 1.250 3.273 0.688 5/16-24X7/8
SPK-35-F SPK-35-A SPK-35-SS 2.1875 1/2 3 1/4 1.375 3.504 0.750 5/16-24X7/8
SPK-39-F SPK-39-A SPK-39-SS 2.4375 5/8 3 1/2 1.484 3.707 0.750 5/16-24X7/8

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