ER-28T Performance Cylindrical OD Bearing 18.5mm SCM-Series muffler with speed control

SCM-Series muffler with speed control provides infinite variation of control of air flow at an acceptable sound level on the exhaust ports of air valves with complete safety

Supplied with standard male pipe thread with internal hex

Extra durable with minimal stress

over the best premium Zirconia grains available

• All sizes over 1/4" have 1/4" shanks

ER-28T Performance Cylindrical OD Bearing 18.5mm SCM-Series muffler with speed controlER 28T Mounted Insert Only Ball Bearing 52100 Bearing Steel, Black Oxided Concentric Lock Features ER style cylindrical OD bearing with snap and with black oxided bearing rings Skwezloc concentric locking for near perfect concentricity Felt labyrinth seal and flinger for dry and dusty environment Unique land riding retainer design provides superior pocket clearance that allows for 360 grease circulation around the rolling elements resulting in better