Common use of Shell Clause in Contracts

Shell. The shell is made from material conforming to SANS 1431 Grade 300WA.  The outside diameter of the shells is machined concentric with their shaft bearing journals within 0.38 mm for drive pulleys and 0.50 mm for non-drive pulleys respectively, as measured by the Total Indicator Run-Out.  The outside diameter of the drive pulley’s shell is within ± 0.2% of the nominal dimension for drive pulleys.  Shell interior stiffener rings shall not be allowed at final assembly.  The shell thickness after machining shall equal or exceed the design thickness and the maximum thickness shall not exceed the minimum thickness by more than 10%.

Shell. a. The shell is made from material conforming to SANS 1431 Grade 300WA.  . b. The outside diameter of the shells is machined concentric with their shaft bearing journals within 0.38 mm for drive pulleys and 0.50 mm for non-drive pulleys respectively, as measured by the Total Indicator Run-Out.  . c. The outside diameter of the drive pulley’s shell is within ± 0.2% of the nominal dimension for drive pulleys.  . d. Shell interior stiffener rings shall not be allowed at final assembly.  . e. The shell thickness after machining shall equal or exceed the design thickness and the maximum thickness shall not exceed the minimum thickness by more than 10%.