L050H Insert | L050H Coupling Insert - L050H Spider (Hytrel) BK72 Pulley What separates this double 2AK114H

What separates this double 2AK114H pulley from the others is that it is made using a high grade-35 cast iron

But no premium bearing can be complete without a quality insert

SER209-28 Bearing Dimensions

35BS84 7/8" Finished Bore Sprocket Dimensions:

60Q23H sprockets are bored to accept a Q1 type taper bushing

L050H Insert | L050H Coupling Insert - L050H Spider (Hytrel) BK72 Pulley What separates this double 2AK114HL050H insert is a Hytrel jaw coupling insert with fair flexibility and hard torsional stiffness. L050H inserts are also called L050H spiders and are used within L050 coupling hubs. The insert is the critical component allowing flexibility and is placed between the jaw hubs, preventing metal on metal contact. More specifically, the L050H coupling insert is made from high quality Hytrel, which is a thermoplastic polyester elastomer material that is