Pie Jaw®
Pie-Shaped Soft Jaws
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Atlas, Bergman, Buck, Cushman, Logansport, Nobel, Pratt Burnerd, Rohm,
S-P, and Warner & Swasey
FEATURES: Full-grip jaws for increased surface contact on large diameter or thin-wall parts, to prevent distortion and marring. Also ideal for fixturing non-cylindrical parts. Cast aluminium material is standard, with steel or cast iron available as an option. Steel jaws can be case hardened after machining, or left soft.
SIZES: Available for chuck sizes from 6" to 24" diameter, in standard height and extra high, and also in oversize diameters — see Dimensions page for part numbers.
DESIGN CONSIDERATIONS & SAFETY PRECAUTIONS: The "critical dimensions" shown in the dimension tables must match your master jaw, although outside dimensions can be different. Please check before ordering. When using extra-high or oversize-diameter top jaws, maximum allowable spindle RPM will be reduced somewhat. Please consult your chuck's operating manual.
MATERIAL (ALUMINIUM): 319 aluminium alloy, with steel cross key.
MATERIAL (CAST IRON): Class 30 grey cast iron.
MATERIAL (STEEL): Mild steel.
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