18 products
BHI Series BEARHUG Locknuts – 16 TPI
The Whittet-Higgins BHI series carries the BEARHUG prevailing-torque polymer locking ring on a 16 threads-per-inch National Fine shaft thread rather than the standard bearing-nut thread. It is the self-locking answer for shafts already cut to 16 TPI, where an NI locknut plus a WI lockwasher would otherwise be required.
BHI Series Specifications
- Part numbers: BHI-01 through BHI-18 (18 sizes stocked)
- Bore / shaft size: 0.75 in to 3.75 in
- Outside diameter: 1.5 in to 5.25 in
- Material & temperature: Carbon steel with a heat-stabilized polymer locking ring; 160°F maximum operating temperature
- Standards: ANSI/ABMA 8.2-1999; made in USA, RoHS compliant
Applications
Bearing and component retention on 16 TPI fractional-bore shafting in machine tools, spindles and rebuilt power transmission assemblies.
Related Whittet-Higgins Series
- NI Series Bearing Locknuts – Inch, 16 TPI
- WI Series Bearing Lockwashers – 16 TPI
- BASI / BAST Series Bearing Assembly Sockets – 16 TPI & Small Profile
- BH Series BEARHUG Locknuts – Inch
Apollo is an authorized Whittet-Higgins distributor. Every part on this page is genuine Whittet-Higgins, manufactured in the USA. Need a size that is not listed, or help matching a locknut to its lockwasher and assembly socket? Contact our team.

