Cast Steel Rope Sheave Detail Drawing for 24mm Wire Rope Systems

This detailed engineering drawing depicts a cast steel rope sheave assembly designed for 24mm diameter steel wire rope applications. This primary component is a 570mm outer diameter rope sheave with a 490mm groove diameter, manufactured from cast steel (IS:1030, Grade 280-520W) with precisely defined chemical composition (C=0.25%, Si=0.6%, Mn=1.2%). The sheave features 12 reinforcing ribs (6 on each side) and incorporates a phosphor-bronze bush with spiral oil grooves (5×1.5mm deep) to ensure proper lubrication during operation. The central bore diameter is 180mm with a 120mm shoulder and includes provision for 4 M8x10 grub screws (2 on each side) for secure mounting. Key mechanical properties include 520 MPa tensile strength, 280 MPa yield strength, and 18% elongation. The drawing includes multiple sectional views (B-B and X-X) with an enlarged detail of the rope groove profile showing the 33° angle that optimizes rope contact while minimizing wear. All dimensions reference IS:2102-1993 tolerance standards, making this suitable for heavy-duty lifting or material handling equipment where durability and precise rope tracking are essential.