Casing Bushing The casing busing and inserts are divided into types of CU and CUL and CB, applied to handling casing sizes from 2 3/8 to 30. The types CU and CUL bushing are designed in integral, while type CB designed in split Designed and manufactured according to API Spec 7K Product Specifications For Casing Bushing Rotary Table Size Casing Sizes(in) Type 2.3/8-8.5/8 9.5/8-10.3/4 11.3/4-13.3/8 16 18.5/8-20 24 26 30 17 1/2- 20 1/2 CU Body 3102 + Insert 1809 Body 3102 + Insert 1902 Body 3102 - - - - - 27 1/2 CUL Body 3103+3105 + Insert 1809 Body 3103+3105 + Insert 1902 Body 3103+ Insert 3105 Body 3103+ Insert 3104 Body 3103 - - - CB Body 6695 + 6126A + Insert 6115 Body 6695+6126A+Insert 6114 Body 6695 + Insert 6126A Body 6695+ Insert 6127 Body 6695 - - - 37 1/2 Body 20+6126A+ Insert6 115 Body 20 + 6126A + Insert 6114 Body 20 + Insert 6126A Body 20 + Insert 6127 Body 20 Body 24 Body 26 Body 30
