BEST CB1901R-4-1/2X4-1/2-26D Concealed Bearing Hinge
BEST CB Series hinges are concealed bearing hinges that have vertical and lateral wear performance that exceeds ANSI/BHMA Grade 1 standards.
Patented construction called LifeSpan® is designed to eliminate metal-to-metal contact between knuckles. As the stainless steel washer extends into the sleeve, it eliminates metal-to-metal contact between the pin and barrel, resulting in a smooth, quiet operation superior to that of a ball bearing assembly.
In addition, the concealed bearings allow for fewer horizontal barrel lines that provide a more seamless appearance. The BEST CB Series is ideal for medium to heavy weight wood and metal doors in high frequency usage applications.