TR flanges are similar to the TF style, but allow for the Taper Lock Bushing to be mounted and removed from
the reverse or serration side of the flange
The limited torque ratings of the Taper Lock Bushings allow TR flanges to only be used with EPDM or Neoprene sleeves
Different bushing sizes are used, so they have different maximum bores than the TF flanges
Be sure to determine if the
bushing being used has either
UNC threads (60°) or British
Standard Whitworth B.S.W.
threads (55°). In the U.S.A.
the UNC type is predominant
for both inch and metric bores.
Outside of the U.S.A. it is
most common to see B.S.W.,
especially on metric bores.
All above data refers to both standard UNC and British Standard Whitworth B.S.W. threads. Flanges are not supplied with screws.
Use of a 1210 or 1610 bushing reduces the reserve factor between bushing torque rating and that of the coupling.
Taper-Lock® is a registered trademark of Reliance Electric Industrial Company in the United States and Canada. It is a registered trademark of JH Fenner and Co. in the United Kingdom.
© 2016 The Timken Company.