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CRITICAL PARAMETER SIZE RANGE TOLERANCE
01. INTERNAL DIAMETER
(SEMI FINISH) (FULLY FINISH) CYLINDRICITY (F/F)
SURFACE FINISH (F/F)
CONCENTRICITY
40mm – 300mm 0.000 – 0.150mm
0.000 – 0.025mm
+ 0.010mm
Ra: 0.4 – 0.6 µm
0.025 – 0.050mm
FOR SEMIFINISH LINERS, ALLOWANCE MAINTAINED 0.650 – 0.800mm IN BORE OR AS PER CUSTOMERS REQUIREMENT.
02. OUTER DIAMETER
CYLINDRICITY
SURFACE FINISH (F/F)
50mm – 300mm 0.000 – 0.020mm
+ 0.010mm
Ra: 0.6 – 0.8 µm
03. COLLAR DIAMETER 50mm – 300mm ±0.025mm
04. COLLAR THICKNESS MIN. 1.0mm ±0.020mm
05. TOTAL LENGTH 65mm - 450mm ±0.150mm
 
NOTE:  TOLERANCE FOR CRITICAL & OTHER PARAMETER IS MAINTAINED AS PER GIVEN CHART OR MUTUAL AGREEMENT WITH CUSTOMERS.
 
 
 
   
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Cylinder Blocks
Pistons
Engine Valves
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