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Transparent carbon-steel locknut with alloy-steel screw, 1-9/16-18 thread

Ruland Manufacturing

Ruland Manufacturing TCN-08-F Shaft Collar Locknut 1-9/16-18 Inch collectible

SKU CH-T1BK-NQ9C2

A carbon-steel locknut with 1-9/16-18 threads secures shaft collars to 350 °F

  • Product typeBearings, V-belts & Power Transmission Equipment
  • Product colorTransparent
  • Precision fit with 0.0005 in TIR for smooth operation
  • Corrosion resistant carbon steel Grade 1215 extends service life
  • Operates from -40 to 350 degrees F in harsh environments
  • Industry standard N08 size with 1.563-18 thread for easy replacement
  • Alloy steel set screw at 0.97 in radius locks securely

Shaft Collar Locknut 1-9/16-18 Inch

This precision shaft collar locknut is manufactured by Ruland Manufacturing for power transmission applications. It is supplied new and intended for maintenance engineers and machinery builders who require a standard inch-series locking component. The carbon steel construction provides corrosion resistance across a wide operating temperature range.

Inch Thread Standard Limits

The locknut uses a 1.563 inch bore with 18 threads per inch, conforming to industry standard size N08. Its face diameter measures 2 inches while the nut outside diameter is 2 7/16 inches, fixing the spatial envelope for any mating shaft or housing. The screw location is set at 0.97 inches from centre, which determines the radial clearance needed for installation and adjustment. Operating limits are -40 to 350 degrees Fahrenheit.

Bearing Face Runout Decides Fit

The bearing face maximum total indicator reading is 0.0005 inches, a tolerance that directly governs rotational accuracy and load distribution in the assembly. Buyers who need looser runout or a different thread pitch cannot use this part.

How it compares

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Price $26.99
Typical for this category: the median of 1,367 items is $26.99.

Specifications

Product
Brand nameRULAND
Product typeBearings, V-belts & Power Transmission Equipment
Product colorTransparent

Questions about this item

Which shaft-collar version should I choose for a 1-9/16-18 threaded shaft?

The TCN-08-F is the only version listed; it matches a 1.563 in. bore with 18 TPI and an industry-standard N08 size.

What does the 0.0005 in. TIR figure mean when the collar is installed?

It indicates the bearing face will run within half a thousandth of an inch of true centre, giving precise alignment on the shaft.

How does the 1-9/16-18 thread spec limit compatibility with other components?

Only parts cut to 1.563 in. diameter with 18 threads per inch will engage; metric or coarser threads will not fit.

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