Hex & D-Bore Shaft Collars

Hex bore shaft collars are designed to mount on standard hex shafts and provide superior holding power and torque transmission for positive drive systems. D-bore shaft collars fit D-shaped shafts, giving greater adjustability and grip than set screw collars while maintaining secure, non-marring connections.

PIB stocks hex and D-bore collars in 1215 lead-free steel with black oxide coating, 303 stainless steel, and lightweight 2024 aluminum (hex only). Clamp screws are offered in alloy steel or 18-8 stainless with black oxide or bright finishes.

Hex and D-bore shaft collars on this page cover inch bores from 0.2500″ up to 1.0000″, along with metric bores from 10 mm to 25 mm, depending on the part number. D-bore collars are available from 1/4″ to 1″, while hex bores range from 3/8″ to 1/2″.

All hex and D-bore shaft collars in this category are supplied by Ruland, a manufacturer known for high-performance shaft collars and couplings for precision motion control.

Yes. The products listed are shown as ISO 9001:2015 certified and compliant with RoHS3, REACH, and Conflict Minerals requirements, making them suitable for use in regulated applications.

These are one-piece clamp-style collars with smooth, non-marring bores. Typical bore tolerances are +0.0020″ / +0.0005″ for inch sizes and +0.050 mm / +0.012 mm for metric sizes, helping ensure accurate fit and reliable torque transfer.

These are one-piece clamp-style collars with smooth, non-marring bores. Typical bore tolerances are +0.0020″ / +0.0005″ for inch sizes and +0.050 mm / +0.012 mm for metric sizes, helping ensure accurate fit and reliable torque transfer.

PIB’s team can assist with product selection, OEM programs, and custom solutions. Engineering support, JIT programs, volume pricing, and other OEM services are available. Just contact PIB Sales for application review and recommendations.