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Boston Gear Setscrew Shaft Collar, Zinc-Plated Steel

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Product Specifications
Material Type
Alloy Steel
Brand Name
Boston Gear

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Mfr Part # Bore Diameter Outside Diameter Collar Width Pkg Qty ASIN

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SC106 1.063" 1.750" 0.625" 1 B004NYAOU0 2 $5.14 Buy Options
SC112 1.125" 1.750" 0.625" 1 B004NYAOUA 1 $5.42 Buy Options
SC118 1.188" 2.000" 0.688" 1 B004NYAOUK 1 $5.75 Buy Options
SC125 1.250" 2.000" 0.688" 1 B004NYAOUU 1 $5.91 Buy Options
SC131 1.313" 2.125" 0.688" 1 B004NYAOV4 1 $6.74 Buy Options
SC137 1.375" 2.125" 0.750" 1 B004NYAOVE 1 $6.85 Buy Options
SC143 1.438" 2.250" 0.750" 1 B004NYAOVY 2 $7.25 Buy Options
SC150 1.500" 2.250" 0.750" 1 B004NYAOW8 3 $7.31 Buy Options
SC156 1.563" 2.500" 0.813" 1 B004NYAOWI 1 $9.88 Buy Options
SC162 1.625" 2.500" 0.813" 1 B004NYAOWS 1 $10.01 Buy Options
SC168 1.688" 2.500" 0.813" 1 B004NYAOX2 1 $10.30 Buy Options
SC175 1.750" 2.625" 0.875" 1 B004NYAOXC 1 $13.11 Buy Options
SC181 1.813" 2.625" 0.875" 1 B004NYAOXM 1 $13.55 Buy Options
SC187 1.875" 2.625" 0.875" 1 B004NYAOXW 1 $13.61 Buy Options
SC193 1.938" 3.000" 0.875" 1 B004NYAOY6 1 $13.94 Buy Options
SC200 2.000" 3.000" 0.875" 1 B004NYAOYG 1 $15.30 Buy Options
SC212 2.125" 3.000" 0.875" 1 B004NYAOYQ 1 $16.55 Buy Options
SC218 2.188" 3.250" 0.938" 1 B004NYAOZ0 1 $17.65 Buy Options
SC225 2.250" 3.250" 0.938" 1 B004NYAOZK 1 $35.90 Buy Options
SC231 2.313" 3.250" 0.938" 1 B004NYAOZU 1 $18.14 Buy Options

Key Features

  • Setscrew shaft collar for applications supporting low axial loads and simple positioning
  • Effective on shafts made of softer material than the setscrew material
  • Steel for weldability and rust resistance with zinc plating for better resistance to corrosion than black oxide steel
  • Includes a hollow-point setscrew for securing the collar onto the shaft
  • Operating temperatures range from -35 to 176 degrees C (-32 to 350 degrees F)

Product Description

This Boston Gear setscrew shaft collar is made of zinc-plated steel. It is a setscrew-type shaft collar for applications supporting low axial loads and simple positioning. Setscrew collars have improved holding power when the shaft material is softer than the setscrew material. It is made of steel for weldability and rust resistance and is zinc plated for better resistance to corrosion than black oxide steel. This collar comes with a hollow-point setscrew for securing the collar onto the shaft. The operating temperatures for this collar range from -35 to 176 degrees C (-32 to 350 degrees F). This shaft collar is suitable for use in various applications, including in the automotive industry to situate components in automobile power steering assemblies, the manufacturing industry to locate components on a conveyor belt system, and the hobby craft industry to hold wheels on axles in remote control vehicles, among others.

Shaft collars are ring-shaped devices primarily used to secure components onto shafts. They also serve as locators, mechanical stops, and spacers between other components. The two basic types of shaft collars are clamping (or split) collars, which come in one- or two-piece designs, and setscrew collars. In both types, one or more screws hold the collars in place on the shaft. In setscrew collars, screws are tightened through the collar until they press directly against the shaft, and in clamping collars, screws are tightened to uniformly compress the collar around the shaft without impinging or marring it. Setscrew collars and one-piece clamping collars must be installed by sliding the collar over the end of the shaft, while two-piece clamping collars separate into two halves and can be installed between components on the shaft. Shaft collars are made from a wide range of materials including zinc-plated steel, aluminum, nylon, and neoprene. Found in nearly every type of machinery and industry, shaft collars are used in applications including gearbox assemblies, motor bases, machine tools, drive shafts, agricultural implements, medical equipment, and paper and steel mill equipment, among others.

Boston Gear manufactures power transmission products and components including enclosed and open gear drives, worm gear speed reducers, spur gears and racks, electric drives, plain sleeve and ball bearings, washers, and rod ends. The company, founded in 1877, and headquartered in Charlotte, NC, meets International Organization for Standardization (ISO) 9001:2008 quality assurance standards and is a member of the Power Transmission Distributors Association.

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