No. 9168 Leveling Straight Edges have flat, parallel faces, specifically designed for setting up and leveling machinery, and for checking and spotting bearing surfaces during hand scraping operations. Properly supported, they may be used with various indicating devices to check the surface flatness of large machined areas. All sizes feature I-beam construction for maximum strength, and are cored and ribbed for balance lightness and rigidity. Leveling Straight Edges may be readily self-checked by inverting them on proper support point and indicating both sides at the center.
SPECIFICATIONS
Leveling Straight Edges are made of close-grained cast iron, thoroughly seasoned and carefully heat treated for maximum stability. Top and bottom surfaces are ground or hand scraped flat, straight, and parallel within tolerances listed in the table. In ordering, specify both Style Number and Length.
Overall straightness is precisely checked at the factory to within the tolerance listed for each size. In use, however, straightness is a function of proper selection of support points, which, while not critical for the 36" and 48" sizes, should be located 6" to 18" from the ends for the 60" size, 13" to 20" for the 72" size, 20" to 26" for the 96" size, 25" to 30" for the 120" size, and 28" to 35" for the 144" size.
| Style No. | Overall Dimensions | Tolerances | Approx. Weight | Price | ||||
| Length | Width | Thickness at Edges | Straightness* | Parallelism | Ground | Scraped | ||
| 9168 | 36" | 8" | 2-1/2" | 0.0002" | 0.0002" | 60 lbs. | $1,147 | $1,397 |
| 9168 | 48" | 8" | 2-1/2" | 0.0003" | 0.0002" | 70 lbs. | $1,448 | $1,763 |
| 9168 | 60" | 8" | 2-1/2" | 0.0004" | 0.0003" | 100 lbs. | $1,848 | $2,251 |
| 9168 | 72" | 8" | 2-1/2" | 0.0005" | 0.0003" | 125 lbs. | - | $3,032 |
| 9168 | 96" | 9-1/2" | 3" | 0.0006" | 0.0003" | 410 lbs. | - | $3,870 |
For additional data, see Reference, notes 1 and 7
Automation and
Metrology 130 Liberty Street Painesville, Ohio 44077
Phone: (440) 354 6436 Fax: (440) 639 9983
E-mail: sales@auto-met.com
www.auto-met.com
