Application flexibility. A variety of design configurations are available to ensure the best possible bearing is selected for the application. Thrust bearings can be manufactured to class 3 tolerances for use in precision machine tools. Additional capacity. TTHDFL bearings have a TTHDFL Thrust Bearing similar design to the TTHD bearing with the exception that one of the thrust races is flat. The ability to implement a pin-type cage with additional rollers in a TTHDFL configuration can lead to higher capacity to an equivalent TTHD design. TTHDFL bearings are differentiated from TTHD designs because one of the thrust races is flat. Due to the flat race feature and different cage in the TTHDFL, the shaft shoulder SKF 6312 Bearing width may not allow direct interchangeability with a TTHD despite having the same envelope dimensions. Please review the existing design or consult us sales representative to determine the applicability of TTHDFL bearings.