NTA, TRA, TRB, Needle Thrust Bearings & Washers

NTA Thrust Bearings
Identification- The prefix letters in the bearing designation of the Rainbow thrust needle roller and cage assemblies, thrust cylindrical and cage assemblies and their corresponding thrust washers are made to inch dimensions, and their major construction features.NTA is the complete prefix code for the needle bearing assembly.
TRA.030,TRB.060,TRC.090
Thrust washers of inch nominal dimensions are identified by the prefix letters TR, followed by another letter such as A, B, C etc. indicating washer thickness. TRA is the complete prefix code for .030 for the thinnest thrust washer made to inch nominal dimensions. Thrust washers of metric nominal dimensions are identified by the prefix letters. Metric thrust bearings and washers of other thickness are also available on request. 
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