5. KFRW t400 Multi-spindle rings KFRW t400 Multi-spindle rings rolling machine GENERAL TECHNICAL CHARACTERESTICS:

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KFRW t**0  Multi-spindle rings rolling machine
GENERAL TECHNICAL CHARACTERESTICS:
l         Purpose bearing rings blanks hot rolling.
l         Blanks material bearing steels ШХ*5СГ、ШХ4 GOST *****8 、GOST *****8、GCr*5、GCr*5SiMn、GCr4、GCr*5SiMo、GCr*8MoG*0CrMo、G*0CrNiMo、G*0CrNi2Mo、G*0Cr2Ni4、G*0CrNi3Mo、G*0Cr2Mn2Mo。
l         Metal temperature before rolling - ********0 оС 
l         Location of rolls axes vertical, number of inner rolls not less than 4.
l         Loading/unloading of parts manual
l         Rolling accuracy variability of sizes (tolerance) under control diameter and end-faces not more than 1,5 mm 
l         Main motion drive electric.
l         Power supply requirements - АС **0 В +/**0 %, three phases, *0 Hz.
Rings parameters after rolling
Controlled parameters    Size tolerance, mm
Variation in wall thickness, not more    1,2
Ovality and conicity of outer surface
1.5
Ovality and conicity of inner surface
2.5
Forging width variation     1.5
Circular burr in axial direction width not more    2.0
Circular burr in radial direction width not more    2.0
Ends gradation and concavity from minimum size, not more    0,8
Underfill in angles with radius R not more
6,0
Surface defects of forging character, depth of marks on the outer surface fromminimum size, not more (GOST ******0)
0.5
Surface defects of forging character, depth of marks on the inner surface fromminimum size, not more (GOST ******0)
0.5
Surface defects of forging character, depth of marks on width from minimumsize, not more {GOST ******0)
0.7