braking-wheel coupling
Technical Requirements for Brake Wheels
(1) The hardness of the flange surface is 35-45HRC and the depth is 2-3mm.
(2) 45 forged steel whose material D is less than 200 mm
ZG340-570 for D (> 250mm).
(3) The type, size and tolerance of key grooves are stipulated in GB/T 3852-97 "Shaft Holes and Connection Types and Dimensions of Coupling".
Examples of tags:
Brake wheel 200-Y60 JB/ZQ 4389-86
200 - Diameter of Brake Wheel, mm
Y-cylindrical shaft hole
Basic parameters and main dimensions of brake wheel mm