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Black oxide steel shaft coupling, 1/2 inch bore, 1 7/8 inch length, #8-32 screw

Climax Metal Products

Climax Metal Products Rigid Shaft Coupling 1/2 in bore 1 7/8 in length #8-32 screw

SKU CH-ANNJ-92D7H

Connects two 1/2-inch shafts with a 1.25-inch OD steel clamp and #8-32 screws

  • Precision alignment from one-piece clamp design
  • Corrosion resistance via black oxide finish
  • Secure hold with #8-32 recessed screws
  • Compact 1 7/8 in length fits tight spaces
  • Durable steel construction handles high torque

Rigid shaft coupling for 1/2 in bore

This one-piece clamp coupling connects two 1/2 in shafts in a fixed, zero-backlash joint. Steel construction with black-oxide finish resists corrosion in industrial and automotive drivelines. The #8-32 recess screw locks both shafts without a keyway. Overall length is 1 7/8 in and clearance diameter is 1.25 in.

Upgrade from split or two-piece clamps

A single-piece clamp eliminates the alignment shift that occurs when separate halves are bolted together. The jump is worth it when vibration or reversing loads loosen multi-piece designs. No keyway machining is required, reducing installation time on existing 1/2 in shafts.

Sustained load behaviour

The rigid steel body transmits torque without wind-up, so angular accuracy holds under continuous duty. Black-oxide coating maintains surface integrity during prolonged exposure to oil, coolant and temperature cycling. Clamping force remains consistent because the single-piece recess screw does not relax like separate fasteners can.

How it compares

Measured against everything we stock in Electrical Conduit & Fittings, at today’s prices. Recalculated every night.

Price $20.99
Cheaper than about 58% of the 1,290 comparable items (median $28.99).

Specifications

Product
Brand nameCLIMAX METAL PRODUCTS

Questions about this item

Will the 1 1/4 in outside diameter fit inside my machine envelope?

The coupling measures 1.25 in across the body, so verify your housing bore exceeds that value before ordering.

How do I secure the #8-32 screw without stripping the recess?

Insert the shaft to the full 1 7/8 in length, then torque the single clamp screw to the maker's spec for #8-32 steel; over-tightening is the common error.

When should I replace this black-oxide steel coupling?

Inspect for fretting at the 1/2 in bore and screw-thread wear; swap it once radial play appears or the finish shows corrosion breakthrough.

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