These backing plates are made from structural urethane and are uniquely designed to fit select styles of Timken round piloted bearing block units
Please note the HSY backing plates only fit QMC/QMCW/QAC/QACW round piloted flange blocks that use either concentric or eccentric bearing shaft collars (Not available for tapered adapter or V-LockĀ® bearing units)
This urethane backing plate utilizes the low speed DR nitrile triple lip seal that can move within the backing plate opening to accommodate misalignment while maintaining full contact to the shaft for positive sealing and help prevent contamination from reaching the primary seal