cushhigh

Cushman thru-hole high speed chucks, hydraulic cylinders and tooling are integrated, power operated workholding packages. Acme serrated master jaws are standard on these thru-hole cylinder and chukc combinations.

With a work clearance hole through both hydraulic cylinder and chuck, a Cushman high speed workholding package affords great flexibility for users of conventional bar and chucking machines as well as automatic N/C equipment.

Cushman high speed chucks counter centrifugal force using a system of counterweights to reduce the tendency of the jaws to release at higher speeds.

Replacing collet pads with top jaws readies this high speed chuck for conventional chucking operation.

Chuck Catalog No.	Size	Est. Gross Wgt.	Thru-Hole	Max. Rec. Speed (r.p.m.)	Max. Rec. Draw-Tube Pull (lbs.)	Jaw Force @ Max. Re. D.T.P. (lbs./jaw)	Jaw Force @ Max. Rec. Speed(lbs./jaw)	Max. Top (WR) For Rated Speed (lb.-in.)
	Inches	Lbs.	Inches	(2)	(1)	(1)	(2)	(2)
10-590-10-	10	100	2.56	4,000	16,500	6,100	3,050	6.74
10-590-12-	12	150	2.56	3,500	18,000	9,500	4,750	10.16
10-590-12-	12	150	3.13	3,500	18,000	9,500	4,750	10.16
12-590-15-	15	260	3.13	3,000	24,950	15,200	7,600	24.23
10-590-15-	15	260	4.62	3,000	24,950	15,200	7,600	24.23
10-590-18-	18	390	4.62	2,250	24,950	18,500	9,250	29.68
(1) Rated jaw force is based on static conditions (O.R.P.M.) with factory lubrication. Variations in jaw force due to changes in chudk, lubrication or both may occur. Jaw force may increase with use. This will not be detrimental to the chuck as long as the increase does not exceed 20%.
(2) Maximum recommended speeds are based on 50% jaw force retention at the stated WR (weight x radius to center-of-gravity) value. Specific applications must be reviewed by the user to establish that the jaw force is adequate for the loads to be encountered. Higher speeds may be permissible but must be reviewed.