This 29317E bearing is a Single Row Spherical Roller Thrust Bearing, with an optimized internal design. The bearing's dimensions are 85x150x39.29317ESpherical Roller Thrust, Medium Series85mm - Bore SizePressed Steel Cage

This 29317M bearing is a Single Row Spherical Roller Thrust Bearing, with a machined brass cage, ball centred. The bearing's dimensions are 85x150x39.29317MSpherical Roller Thrust, Medium Series85mm - Bore SizeMachined Brass Cage