From the Rolls-Royce experimental archive: a quarter of a million communications from Rolls-Royce, 1906 to 1960's. Documents from the Sir Henry Royce Memorial Foundation (SHRMF).
Inquiry regarding the wear patterns on Borg & Beck clutches.
| Identifier | ExFiles\Box 129\4\ scan0141 | |
| Date | 16th February 1938 | |
| W/N. Br.{T. E. Bellringer - Repair Manager} from Rm{William Robotham - Chief Engineer}/NRC.{N. R. Chandler} c. W/K.{Mr Kilner} 1110 Rm{William Robotham - Chief Engineer}/NRC.{N. R. Chandler}1/MH.{M. Huckerby}16.2.38. RE BORG & BECK CLUTCHES. We would be interested to know if you have ever found the facing of a Borg & Beck clutch on either Bentley or 25/30 worn down to anywhere near to the rivet heads. Our own experience is that the wear appears to be extremely small, although actually the rivet heads are recessed to a depth of .035 to .040. We have never seen one worn to anything approaching this extent, and we would be interested to know if you have, more especially in the hands of a driver who is known to be a "bad clutch slipper". Rm{William Robotham - Chief Engineer}/NRC.{N. R. Chandler} | ||