Browning VPB-231 Pillow Block 318973-401 proving the valve position for

proving the valve position for system interlocks

If the 106952 heater fails

it ensures timing accuracy and long-term reliability in demanding thermal environments

verifying that the inducer blower is pulling the correct static pressure before allowing the ignition sequence to proceed

Browning VPB-231 Pillow Block 318973-401 proving the valve position forThe Browning VPB 231 is a standard duty, 1 15 16" bore diameter pillow block bearing designed for high performance industrial HVACR and power transmission applications. Built with a robust cast iron housing, this unit features the BOA concentric locking mechanism, which ensures 360 degree holding power and maintains near perfect concentricity to minimize vibration and shaft marring. The bearing insert is constructed from 52100 bearing steel with a