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SUMMIT COLLARS Brand RC-112-KW-4H Solid Rigid Coupling | Black Oxide Plated Mild Steel Rigid Coupling, RC-112-KW4H@90° | 1-1/8" Bore With 2-1/8" Outside Diameter | 3" Length | 3/8"-16 x 1/2" Set Screw in Kuwait SUMMIT COLLARS Brand RC-112-KW-4H Solid Rigid Coupling | Black Oxide Plated Mild Steel Rigid Coupling, RC-112-KW4H@90° | 1-1/8" Bore With 2-1/8" Outside Diameter | 3" Length | 3/8"-16 x 1/2" Set Screw in Kuwait

SUMMIT COLLARS Brand RC-112-KW-4H Solid Rigid Coupling | Black Oxide Plated Mild Steel Rigid Coupling, RC-112-KW4H@90° | 1-1/8" Bore With 2-1/8" Outside Diameter | 3" Length | 3/8"-16 x 1/2" Set Screw

KWD 17
– 1 +

Special Features

  • For use on keyed shafts
  • Load capacity nearly doubled by adding a second set of set screws
  • Traditional cost effective rigid coupling design
  • Provides torque transmission and alignment
  • Effective on both hard and soft shaft

Description

RC-112-KW Solid Rigid Coupling – 1-1/8" ID with Keyway, Black Oxide Finish
The RC-112-KW is a high-quality, one-piece solid rigid coupling with a 1-1/8" inner diameter (ID) and a pre-machined 1/4" keyway, designed for secure and precise shaft-to-shaft connections. Made with a durable black oxide finish, it offers reliable performance for a variety of industrial and mechanical applications.
Bore Size: 1-1/8"
Outer Diameter: 2-1/8"
Width: 3"
Set Screw Size: 5/16-18"
Keyway: 1/4"
Weight: 45 oz (each)
Set screw rigid couplings are the most cost-effective solution for shaft alignment and rigid torque transfer. .
Standard sizes range from 1/4" to 1-1/4" ID, making these couplings versatile and essential for many machine and equipment builds. Ideal for applications requiring a strong, fixed shaft connection without backlash.

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