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Jaw Flexible Coupling Hub: Inch, Stainless Steel, 3 11/32 in OD, 4 23/100 in Overall Lg, 1 1/2 in Bore Dia

Item # 170R215

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Product Specs

Hub Material: Stainless Steel
OD: 3 11⁄32 in
Overall Length: 4 23⁄100 in
Bore Diameter: 1 1⁄2 in
Measurement System: Inch
Keyway: Yes
Keyway Depth: 0.1875 in
Keyway Width: 0.375 in
Length Through Bore: 1.68 in
Maximum Operating Temperature: 212 ° F
Minimum Operating Temperature: -40 ° F
Resistance Properties: Oil Resistant; Chemical Resistant
Screw Thread Size: 5/16"-18
Setscrew: Yes
Size: SS110
Specifications Met: OSHA; ASME

Compliance and Restrictions

Country Of Origin

  • USA

About Jaw Flexible Shaft Couplings

A flexible spider insert joins the hubs of these jaw flexible shaft couplings and acts as a cushion between them to absorb shock and vibration, which reduces the force of impact loads. These couplings can accommodate small amounts of angular misalignment (shafts are set at an angle to each other), parallel misalignment (shafts are misaligned but parallel), or axial misalignment (shafts are pulled apart or pushed together) when the coupling is connected between two shafts.

Spider inserts can be replaced when they become worn or damaged, and the coupling will continue to operate even if the spider insert fails, allowing the drive system to be properly shut down before replacing the spider. You can exchange the current insert in a coupling for another insert of the same style but in a different material to adapt the coupling for a variety of applications. Jaw flexible shaft couplings do not require lubrication and are commonly used on semiconductor, solar energy, and medical equipment.

Select two of these hubs and place a compatible spider insert between them to create a jaw flexible shaft coupling for your application. The hubs attach to shafts using the included set screws. Once the coupling is in place, the set screw is tightened until it bites into the shaft material. For best results, the set screw should be made from a material that is harder than the shaft material.