SECTION FOR VEHICLE SLEWING CIRCLE RINGS Russian patent published in 2001 - IPC

FIELD: transport engineering. SUBSTANCE: invention relates to hot-rolled or hot forged sections used in manufacture of upper and lower rings of slewing circles used on vehicle trailers and cranes. Cross-section of hot-rolled or hot-forged section differs in shape and dimensions from radial section of upper (lower) ring by machining allowance of shape and sizes in zone of relative contact of rings and contact with working balls on vertical flange of section. EFFECT: reduced metal usage, labor input and power required for manufacture of upper and lower rings of slewing circle by using unified section. 2 cl, 2 dwg