L100U Insert | L100U Coupling Insert - L100U Spider (Urethane) 35B13 Sprockets Dimension (S1): 2-3/8"

Dimension (S1): 2-3/8"

Dimension (T): 11/32"

While the phosphate coated and then painted finish adds corrosion resistance to the AK99H pulley

Fafnir Part #: 62MS

40BS36 7/8" Finished Bore Sprocket Dimensions:

L100U Insert | L100U Coupling Insert - L100U Spider (Urethane) 35B13 Sprockets Dimension (S1): 2-3/8"L100U insert is a Urethane jaw coupling insert with good flexibility and medium soft torsional stiffness. L100U inserts are also called L100U spiders and are used within L100 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 L100U coupling insert is made from high quality Urethane, which is a polyurethane material that is orange in