TABLE OF CONTENTS The following catalog pages of helical compression and extension spring data provided courtesy of Hardware Products Co., Chelsea, Massachusetts.
| Free Lengths | Will go in hole in. | 7/16 | 1/2 | 5/8 | 3/4 | 7/8 | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Wire Dia. In. | .031 | .047 | .062 | .047 | .062 | .078 | .094 | .047 | .062 | .078 | .094 | .062 | .078 | .094 | .125 | .062 | .078 | .094 | .125 |
| | Catalog No. Price Code ibs. /in. Max.Defl. | 247 | 248 | 249 | Pounds per inch figure is a constant for each spring, and represents the number of pounds required to compress the spring 1". To compress the spring " or " requires or of this value | ||||||||||||||
| HB | HB | HC | |||||||||||||||||
| 12 | 55 | 180 | |||||||||||||||||
| .32 | .23 | .16 | |||||||||||||||||
| | Catalog No. Price Code Ibs. /in. Max.Defl. | 250 | 251 | 252 | 283 | 284 | 285 | 286 | |||||||||||
| HB | HB | HC | HB | HB | HE | HE | |||||||||||||
| 10 | 47 | 150 | 37 | 110 | 320 | 840 | |||||||||||||
| .37 | .27 | .19 | .29 | .22 | .15 | .10 | |||||||||||||
| | Catalog No. | 253 | 254 | 255 | 287 | 238 | 289 | 290 | 331 | 332 | 333 | 334 | |||||||
| Price Code | HB | HB | HC | HB | HB | HE | HE | HB | HB | HD | HE | ||||||||
| Ibs./in. | 7.9 | 36 | 175 | 29 | 85 | 240 | 610 | 20 | 54 | 140 | 320 | ||||||||
| Max.Defl. | .47 | .35 | .25 | .38 | .29 | .20 | .14 | .43 | .35 | .27 | .20 | Maximum Deflection is the amount spring... |
