Standard Bellows
Sizes
For convenient and low cost standard bellows solutions, Servometer offers 16 standard sizes from .250 inch OD to 1.00 inch OD in various lengths and wall thicknesses. These parts are available to order in small quantities. Select the sizes you need from the chart below then contact customer service today at 973-785-4630 for availability and pricing.
Standard Bellows Chart
| Part # | Fin O.D. "A" (in.) | Skirt I.D. "B" (in.) | Inside Diameter "C" (in.) | Convolution Length "D" (in.) | Nominal Wall (in.) | Spring Rate (lb./in.) | Compression Stroke (in.) | # of Convolutions | Effective Area (in2) | Working Pressure (PSI) |
|---|---|---|---|---|---|---|---|---|---|---|
| FC-1 | 0.25 | 0.248 | 0.15 | 0.74 | 0.002 | 5.9 | 0.149 | 24 | 0.0292 | 290 |
| FC-2 | 0.25 | 0.248 | 0.15 | 0.37 | 0.002 | 11.82 | 0.07 | 12 | 0.0292 | 290 |
| FC-3 | 0.25 | 0.248 | 0.15 | 0.245 | 0.002 | 17.7 | 0.045 | 8 | 0.0292 | 290 |
| FC-4 | 0.25 | 0.248 | 0.15 | 0.185 | 0.002 | 23.63 | 0.032 | 6 | 0.0292 | 290 |
| FC-5 | 0.375 | 0.372 | 0.25 | 0.74 | 0.002 | 8.15 | 0.194 | 24 | 0.0723 | 265 |
| FC-6 | 0.375 | 0.372 | 0.25 | 0.55 | 0.002 | 10.87 | 0.142 | 18 | 0.0723 | 265 |
| FC-7 | 0.375 | 0.372 | 0.25 | 0.37 | 0.002 | 16.31 | 0.092 | 12 | 0.0723 | 265 |
| FC-8 | 0.375 | 0.375 | 0.25 | 0.305 | 0.002 | 19.57 | 0.075 | 10 | 0.0723 | 265 |
| FC-9 | 0.5 | 0.495 | 0.36 | 0.74 | 0.003 | 21.62 | 0.172 | 24 | 0.1382 | 410 |
| FC-10 | 0.5 | 0.495 | 0.36 | 0.49 | 0.003 | 32.44 | 0.112 | 16 | 0.1382 | 410 |
| FC-11 | 0.5 | 0.495 | 0.36 | 0.37 | 0.003 | 43.25 | 0.082 | 12 | 0.1382 | 410 |
| FC-12 | 0.75 | 0.744 | 0.57 | 0.98 | 0.003 | 30.73 | 0.208 | 21 | 0.328 | 355 |
| FC-13 | 0.75 | 0.744 | 0.57 | 0.73 | 0.003 | 40.33 | 0.156 | 16 | 0.328 | 355 |
| FC-14 | 0.75 | 0.744 | 0.57 | 0.54 | 0.003 | 53.78 | 0.114 | 12 | 0.328 | 355 |
| FC-15 | 1 | 0.994 | 0.74 | 1.23 | 0.004 | 24.66 | 0.32 | 18 | 0.5678 | 230 |
| FC-16 | 1 | 0.994 | 0.74 | 0.73 | 0.004 | 44.7 | 0.169 | 10 | 0.5678 | 230 |