Features: 1. Brake wheel and semi-coupling made in one piece structure 2. Brake wheel half coupling is machined from cast steel or forged steel, and the outer surface is quenched 3. The form and size of the shaft keyway, the marking method is the same as the TL type
Tag description For the Z type, the J-type shaft hole length with the counterbore refers to the mating length of the shaft hole (excluding the counterbore), that is, the L1 size in the figure.