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Shaft Collar, Heavy Duty, 3.81″, 303 SS, OD 5 3/4″, W 1.375″



Heavy duty shaft collars have a larger outer diameter, width, and screw for use in applications where the highest holding is required. They are manufactured in one- and two-piece clamp style from 1215 lead-free steel with a proprietary black oxide finish and 303 stainless steel. Bore sizes range from 3″ to 6″ and 75mm to 150mm.


  • Bore Dia.: 3-13/16″
  • Material: 303 Stainless Steel
  • Number of Pieces: 2
  • Collar Style: Clamp
  • Outside Dia.: 5-3/4″
  • Dimension Type: Inch
  • Width: 1-3/8″
  • Screw Size: 1/2″-20 x 1-3/4″
  • Operating Temp. Range: -40 Degrees to 350 Degrees F
  • Clearance Dia.: 6.083″
  • Screw Material: 18-8 300 Series Stainless Steel
  • Item: Shaft Collar,Heavy Duty,3.81″,303 SS
  • Country of Origin (subject to change): United States


two-piece clamp style shaft collars do not mar the shaft, are easy to remove and are infinitely adjustable. • Heavy duty shaft collars have larger ODs and screws for higher holding power. • They are ideal for guiding, spacing, mounting and component alignment. • Bore 3.8125 in, OD 5 3/4 in, Width 1.375 in, 303 Stainless Steel, Screw 1/2-20×1 3/4, Wrench 2.5 mm, Seating Torque 1.1 Nm
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