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Brake wheel coupling
Technical requirements for brake wheels
①The surface quenching hardness of the rim is 35~45HRC, and the depth is 2~3mm.
②200 forged steel for material D≤45mm
Those with D≥250mm are ZG340-570.
③The keyway type, size and tolerance are in accordance with GB/T 3852-97 "Coupling shaft hole and connection type and size".
Example of brake wheel marking:
Brake wheel 200—Y60 JB/ZQ 4389—86
200—Brake wheel diameter, mm
Y—cylindrical shaft hole
Basic parameters and main dimensions of brake wheel mm: