BMT Live & Static Tooling Catalog_LN365_CA_v1-WEB

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

A

B A

B

C

C

D

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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.

lyndexnikken.com | 847-367-4800

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