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A heavy mechanical part consisting of a green painted cast-iron base and a polished steel bearing, commonly found supporting heavy residential garage door shafts.
Arched, green painted cast-iron base
Two flat bolt mounting flanges
Central shiny silver steel bearing ring
Protruding grease nipple (zerk fitting)
Heavy base secures rotating shafts to flat surfaces
Grease nipple allows easy maintenance without removal
Steel insert handles extreme rotational speeds



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