Error chops end off table

Our sincere apologies to Infranor for omitting important details of their Redutor range in the July/August issue of Design Engineering (`Slow down, it moves too fast’, July/August 1997, p. 27)

The errors occurred during the transfer of the information contained in the original document submitted by our contributing editor Rex Narraway into our page layout system. The system chopped off the last two lines of the original table.

Design Engineering is the only UK trade publication that does present engineers with comparative analytical articles. But in this case, the analysis was flawed by the computer error which rendered the table incomplete.

The table in its correct form is printed below. For details on the technology involved in these speed reduction systems, see the July/August issue.

{{Table 1: Performance figures of some of the available speed reducerson the market. Data was abstracted from manufacturers catalogues andis for comparison purposes only

No. in OD Size Nominal Reduction Range (mm) Torque Ratios (Nm) Available

SUMITOMO CYCLO FC-A 6 115 to 310 149 to 3900 29:1 to 179:1SUMITOMO CYCLO F2C-T 6 156 to 330 345 to 3920 81:1 to 171:1TEIJIN SEIKI RV-AII 8 120 to 370 58 to 3726 31:1 to 192.4:1HARMONIC DRIVE TECHNIQUES 10 38 to 330 3.4 to 3160 60:1 to 200:1HARMONIC DRIVE SYSTEMS HFUC 13 70 to 330 5.4 to 3550 50:1 to 160:1INFRANOR REDUTO 3 110 to 200 75 to 400 20:1 to 265:1}}

{{Table 1: Performance figures of some of the available speed reducerson the market. Data was abstracted from manufacturers catalogues andis for comparison purposes only

Max I/P Speed Max I/P Speed Backlash Efficiency Pos’n’l(rev/min) (rev/min) (arc sec) (%) Accuracy (arc sec)

SUMITOMO CYCLO FC-A 6150 to 2000 0 85 to 90 <28SUMITOMO CYCLO F2C-T 50 o/p to 25 o/p 0 80 to 95 <28TEIJIN SEIKI RV-AII 10300 to 2000 60 60 to 80 26HARMONIC DRIVE TECHNIQUES 15000 to 2250 <50 70 to 85 150 to 15HARMONIC DRIVE SYSTEMS HFUC 14000 to 2500 <36 70 to 85 120 to <60INFRANOR REDUTO 6,000 to 10000 0 >90 63}}