KT182216 Needle roller cages for general usage: Two types: 1, Metal stamping(TLA, ... TAF, TAF=NK) KT182216 Needle Roller Cages for General Usage :Two types:1, Metal stamping(TLA, TA, ... difference of needle roller diameter is 2μ M, and the precision grade is G2 (ISO GB309 ... element material, operating temperature is -300C---+1000C.For general-disposition design of bearings, refer to the relevant ...