Bommer Continuous Gear Hinges
Bommer continuous gear hinges are Made in the USA and BHMA Certified Grade 1 (Best Grade). They are available in 4 lengths from 83 inches up to 120 inches long.
Bommer continuous gear door hinges consists of two full-height, paired and geared leafs. Each geared leaf rotates evenly from top to bottom, riding on superior Delrin Teflon bearings. The geared leafs and bearings are held together by a full length channel cap. This assembly retains the smooth, clean lines of the door and frame, while easily supporting heavy vertical loads.