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Stainless steel one-piece rigid shaft coupling with two round bores of different sizes

Ruland Manufacturing

Ruland Manufacturing CLX-8-6-SS Coupling 1/2 x 3/8 in

SKU CH-TNSD-8MZ0B

Connects 1/2 in and 3/8 in shafts with a one-piece stainless steel rigid coupling rated for 275 in-lb torque and 4,000 RPM maximum speed

  • TypeCouplings, Collars & Adapters
  • Stainless-steel construction resists corrosion in harsh environments
  • One-piece design eliminates backlash for precise power transmission
  • Different bore sizes connect 1/2 in and 3/8 in shafts directly
  • 275 in-lb torque capacity handles demanding loads
  • 4,000 RPM rating suits high-speed applications

Precision One-Piece Coupling

The Ruland CLX-8-6-SS is a stainless-steel rigid shaft coupling designed to join a 1/2 in bore to a 3/8 in bore in power-transmission assemblies. It suits maintenance engineers and machine builders who need a compact, corrosion-resistant connector for light-duty drives. The one-piece construction eliminates backlash and simplifies alignment during installation. Buyers who require flexible or high-torque couplings should select a different style.

Thermal Noise and Power Profile

As a passive mechanical component the coupling generates no heat, draws no electrical power and produces no audible noise during operation. Its stainless-steel body resists corrosion in wash-down or humid environments without lubrication. The rigid design transmits vibration directly between shafts, so isolation-sensitive applications need an alternative. Operating temperature limits are defined by the metal itself rather than an active cooling requirement.

Maximum Torque Rating 275 in-lb

The coupling is rated for a peak torque of 275 in-lb at speeds up to 4,000 RPM, which determines whether it can handle the load in a given drive train. Exceeding this value risks permanent deformation or shaft slippage. The 1.33 in clearance diameter and round-bore profile must also match the shaft dimensions exactly. Specifiers who need higher torque capacity must choose a larger or differently rated coupling.

Highlights

  • Stainless-steel construction resists corrosion in harsh environments
  • One-piece design eliminates backlash for precise power transmission
  • Different bore sizes connect 1/2 in and 3/8 in shafts directly
  • 275 in-lb torque capacity handles demanding loads
  • 4,000 RPM rating suits high-speed applications

Specifications

TypeCouplings, Collars & Adapters

Questions about this item

How do you install the CLX-8-6-SS one-piece coupling and what step is often missed?

Slide each shaft into the 1/2 in and 3/8 in bores, then torque the set screws to the maker's spec; the step often missed is verifying the 1.33 in clearance diameter clears nearby parts before final tightening.

What maintenance or replacement will the CLX-8-6-SS coupling need later?

Inspect the stainless-steel body and set screws for wear or corrosion at each scheduled shutdown; replace the coupling if the 275 in-lb torque limit is exceeded or if any bore shows fretting.

What limit appears first when the CLX-8-6-SS coupling runs continuously at high speed?

The 4,000 RPM maximum speed rating is the first limit reached under sustained use; exceeding it risks loss of clamping force and premature wear.

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