HiRunER precision ER collet chuck SK 40 A = 70
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External and internal tapers are ground. All shanks are hard turned for smooth running. Including Ballufchip bore, high-performance clamping nut (up to 25,000 rpm).
- 3µm radial run-out with a 2µm collet, 6µm radial run-out with a 5µm collet.
- Extremely strong holding force (up to factor 2 better than the standard ER chuck).
- Vibration reduction effect due to 2-part clamping nut.
For clamping tools with plain shank in collets to DIN 6499 - Form A and B.
Precision clamping nut.
Pull studs (PS) No. 308600 – 308806, pull stud wrenches No. 308810 – 308830, ER collets No. 308881 – 309434, ER clamping wrenches No. 309680 – 309720.
- Clamps only nominal ⌀ up to shank ⌀ tolerance h10.
- Clamping nut not in conjunction with a sealing washer.
Use the precision collet chuck always in conjunction with the precision clamping nut No. 309617.