4 boltli flanesli podshipniklar flanesli podshipnik korpusiga o'rnatiladi va podshipnikni o'rnatish yuzasi valga kirish joyiga perpendikulyar bo'lganda afzalroqdir. 4 boltli flanesli sharsimon podshipniklar o'rnatish uchun to'rtta teshikka ega kvadrat shaklga ega.
