What does the “NA” in TL350-2NA mean?
A7. Between 1987-1990, products made with both asbestos and non-asbestos were sold. To differentiate from the old type made with asbestos, NA referred to the non-asbestos type of friction facing. From 1990, all Torque Limiters & Torque Limiter Couplings shipped were non-asbestos, so from that point on no model numbers have included NA.
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