The QA1 NPB-T Narrow stainless spherical bearing is a precision narrow-fit bearing with a 1/4" inner diameter, stainless construction and a PTFE liner. The ball is 440C stainless that is heat treated, hard chrome plated and precision ground, while the PTFE liner provides self-lubrication. It's built with tight tolerances for applications needing a compact, low-friction spherical bearing.
QA1 NPB-T Narrow Series Bearing - 1/4in Bore - Heat Treated Chrome Plated Stainless Steel w/PTFE