HIN-T	High misalignment, alloy steel, heat treated, PTFE lined
COM / COMH	Commercial series, low carbon steel
FKS	Precision narrow series, alloy steel, heat treated
FKSSX-T / FKSSX- TV / PFKSSX-T	Precision narrow series, stainless steel, PTFE lined
WSSX-T / WSSX-TV	Wide series, stainles steel, PTFE lined
IN-P	Plastic race series
K	Special purpose series