Inch Series collars

Technical Standards & Selection Guide for Inch Shaft Collars

In North American manufacturing and industrial automation assemblies, utilizing components that strictly adhere to fractional dimensions and ANSI thread standards is critical for seamless integration. Our inch series shaft collars provide dependable mechanical stopping and component retention under demanding operational conditions.

ANSI Compliance & Mechanical Clamping Mechanics

Proper execution of axial holding power requires exact perpendicularity between the collar's front face and its internal bore. This precision minimizes runout when the collar faces a bearing or pulley hub.

• Inch Clamp Style (One-Piece & Two-Piece): These designs utilize high-grade, standard inch-sized socket head cap screws to exert uniform radial pressure. By relying on strict surface-to-surface friction rather than point-contact penetration, they provide strong torsional holding torque without compromising the precision-ground finish of your shafts.

• Specialized Keyed & Threaded Options (SPK / TCL / TCN): For heavy reciprocating loads or high-vibration applications, our threaded inch collars (with standard UN series threads) and keyed collars (SPK series) deliver an absolute mechanical lock, preventing axial migration during sudden shock loads.

Industrial Material Grades & Finishes

To accommodate varying environmental demands, our inch-sized clamping collars are available in standard premium materials:

• Carbon Steel (Black Oxide Finish): Provides an economical, high-strength solution for enclosed dry environments, featuring minimal dimensional buildup for precise fits.

• Stainless Steel (Grade 303 / 316): Offers ideal corrosion resistance for machinery used in food processing, sanitary washdowns, or coastal marine environments.

For specific fractional bore tolerances, detailed 3D CAD models, or commercial volume pricing, please forward your dimensional data sheet and project blueprints directly to our technical sales team.