PWT Series Precision Lockwashers – Small Profile

The PWT series is the small-profile precision lockwasher matched to the PT precision locknut. Keyed and tanged like a standard precision washer but reduced in outside diameter and section, it locks an accurately preloaded bearing in an envelope where a PW washer will not fit.

PWT Series Specifications

• Part numbers: PWT-00 through PWT-21 (20 sizes stocked)
• Bore / shaft size: 0.406 in to 3.582 in
• Outside diameter: 0.921 in to 4.703 in
• Material & temperature: Carbon steel, black oxide finish; 300°F maximum operating temperature
• Standards: ANSI/ABMA 8.2-1999; made in USA, RoHS compliant

Applications

Compact precision spindles, servo and instrument drives, robotics joints and cartridge bearing assemblies.

Related Whittet-Higgins Series

• PT Series Precision Locknuts – Small Profile
• PW Series Precision Lockwashers – Inch
• W-000 / WT Series Bearing Lockwashers – Small Profile

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.