SK VS. ER GRIPPING FORCE
SK Collets can be used for all applications, from milling to reaming. Standard collets can be used in coolant thru applications (with coolant back-up screws).
Increased Gripping Power The smaller the taper angle is, the better concentricity is obtained. Our steep 8° collet seats deeper in the body of the holder, providing twice more clamping force and twice more precision than traditional 16° ER collets.
8° collet = double gripping force & dampening
SK Collet vs. ER Collet
A. Slim design allows for clearance B. F orce is perpendicular to centerline of toolholder for strong grip C. Deep position creates greater accuracy D. Rigid body is flush
A. Wide collets = wide nut design B. Force is angular to centerline of toolholder C. Shallow position creates collet rocking D. Body diameter is smaller than nut compromising rigidity
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B A
B
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D
ER32 External Nut
ER32 External Nut (Non-Bearing)
ER32 Internal Nut
Lyndex-Nikken HI-Performance SK16 Nut
Test
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75 ft.lbs. 60 ft.lbs. 60 ft.lbs. 70 ft.lbs. 75 ft.lbs.
60 ft.lbs. 60 ft.lbs. 65 ft.lbs. 50 ft.lbs. 55 ft.lbs.
60 ft.lbs. 55 ft.lbs. 65 ft.lbs. 70 ft.lbs. 75 ft.lbs.
115 ft.lbs. 120 ft.lbs. 110 ft.lbs. 115 ft.lbs. 115 ft.lbs.
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Looking for SK Series Collets? Turn to page 54.
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