ERos® System
Designed to provide the ultimate in Extreme performance. ERos® offers all of the benefits of a collet system but is designed to eliminate all of the errors that come from the typical collet flexible collapse system. ERos® is ER ON SIZE. Machined for the best fit and precision without the forced collapse provides the best combination for precision, rigidity, grip force and speed.ERos® is an extremely high precision, high grip force solution that doesn’t require an expensive heat shrink or clamping machine.

Kit Includes:
• 1 Pc. Parlec CAT 50 ERos 20 x 4.00" 20K RPM @ G2.5 Balanced Extremely High Precision CNC Collet Chuck
• 4 Pcs. Parlec ERos 20 Collets Set (Your Choice either Inch or Metric) - Inch Size- 1/8" to 1/2" x 16ths, Metric Size - 3 mm to 13 mm x 1.0mm
• 1 Pc. Parlec ERos 20 Roller Collet Chuck Wrench

ERos®Collet Chucks are for extreme performance and any high speed, high concentricity tool requirement. The .00012” gage runout tolerance at 3X the tool diameter with the balanced and aerodynamic design, provides the highest performance available equip to shrink fit or proprietary designs without high start-up costs. The collet based design provides the simplest solution to extreme performance requirements.

ERos® Collet Chucks
• 3 Micron system precision at 3X shank diameter
• Grip force comparable to heat shrink and hydraulic chucks
• Custom length collet seat for maximum contact, providing rigidity and grip force
• Available AD/B Coolant converts from through-spindle to flange entry coolant supply
• Precision ground OD, threads and two pilot bores provide the most advanced and precise clamping nut available
• Balanced to G2.5 and AT3 Taper specifications
• Affordable precision machining investment
• Simplicity without the requirement of assembly machines
• Versatility, suitable for drilling, milling, reaming and grinding
• High speed capability to over 30,000 rpm

2 Micron ERos Collet
• Recommended use with ERos® Collet Chuck
• Evenly distributed cutting edges for high performance machining.
• .00008” (2 micron) gage tolerance.
• Exceeds DIN requirements.
• Recommended use on size (required in EROS Colllet Chuck).
• 12 slots, deburred and polished.
• Increased grip force with reduced friction to collet seat.
• Increased grip force with reduced friction to collet seat.

Concentricity
The ERos® collet system is one of the best collet chucks that money can buy. The 2 Micron collet combined with the precision chuck, achieves a system accuracy of <= .00012” or 3 Microns. This level of accuracy is the best available in the world.
Precision
The extreme performance of the ERos® system is a result of extremely tight manufacturing tolerances. The extreme precision is achieved by exceeding the already tight specifications of the ISO 15488.
Simplicity (Low start up cost)
The price to performance ratio in the ERos® system is the best available. Based on precision, holding force and flexibility, it performs at levels equal to or higher than systems with expensive start up costs such as heat shrink or clamping machines. And individually equal to or less expensive. The relatively low cost of the 2 Micron collets allow inexpensive retooling compared to hydraulics, shrink or proprietary systems. ERos® is a combination of quality, precision and technology yielding an EXTREME performance chuck at an attainable price point without need for significant investment for assembly/disassembly equipment.

CAT Taper ERos with AD+B Coolant

Size	B (Dia.)	C	Collet Nut (Included)	Roller Wrench
ERos 20	1.26	4.00	EROS20N	EROS20NW

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