Nann Workpiece Clamping Collets - Deadlength Collets

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Work Piece Clamping Solutions

Nann Workpiece Clamping Collets - Deadlength Collets

QUANTITY

Deadlength Collets

Use:

  • for workpiece clamping
  • for bar or chuck work
  • no axial movement while the chuck is clamping
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Bore patterns:
(G): smooth
(Q): with round grooves from 6.0 mm
(LQ): with cross grooves from 6.0 mm, serrated in the case of round bores greater than 9.0 mm; higher clamping force

Taper angle of the clamping sleeve:
The taper of the clamping sleeve should be 15‘ (one-sided) flatter than the taper angles given in the tables. This frees the collets on release and provides low undersized clamping.

 

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Stepped bores:
In the case of stepped bores or when using collet stops, the clamping point should be within the taper of the collet, otherwise the collet will tend to break due to bending stresses.

 

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Hardness:
The collets are made from special spring steel. Where possible, by partial tempering, the hardness of the taper and clamping bore is approx. HRc 60. The shank and sprung area are hardened to spring.

Taper grinding:
The clamping taper is lightly ground at the slot edges to ease removal of the collets from the mounting thus making possible low undersized clamping.

Stops for collets:
Adjustable stops which are easily fitted into the rear bore of the collets. Bores are available for standard models.

 

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art.no. pic. d D L

bore pattern

LQ     | Q    | G

 max. diameter

 circle    |   oct    |   square

100 E 1 6 10 30 15                      * 4.5      
101 E 1 8 12 42 16                      * 6
102 E 1 8 13.7 30 21                      * 5.5
103 E 1 8 14 35 15                      * 5
109 E 1 10 15.5 47.5 20                      * 7
110 E 1 10 16 43 15                      * 7
111 E 1 10 16 46 20             * 7
112 E 1 11 18.7 41 22                      * 7.5
113 E 2 12 15.5 30.5 10                      * 10
117 E 1 14 18 46 13                      * 10
118 E 1 14 19.5 46 15                      * 10         9         7
120 E 1 15 21 64 16             * 12         9         7
1212 E 1 16 21 64 16             * 13
125 E 1 17.5 22 51 15             * 14
136 E 1 20 26 54 15             * 16         14       11
138 E 1 20 28 67.3 16             * 16         14       11
139 E 1 22 28 67 18             * 16         13       10
140 E 1 22 30 55 15 *          * 16         14       10
143 E 1 25 31 54 15             * 16         14       11
145 E 1 25 35 77 16             * 20         17       14
146 E 1 26 32 67 13             * 20         17       14
148 E 1 28 38 70 15 *          * 24         20       16
156 E 1 30 39.3 87 15             * 25         22       14
157 E 1 30 42 80 16             * 25         22       18
1446 E 1 30 38 65 15             * 25         22       18
161 E 1 32 45 75 15 *          * 26         22       18
1497 E 1 34 44 78 16             * 28         24       20
162 E 1 35 43 70 15             * 25         22       17
163 E 1 35 48 80 15 *          * 30         27       22
1536 E 1 37 47 92 16             * 32         27       22
164 E 1 38.08 49 108 15             * 32         27       22
171 E 1 42 55 94 15             * 37         32       26
173 E 1 48 60 94 15 *          * 42         36       28
177 E 1 58 70 94 15             * 52
185 E 1 66 84 110 15 *          * 60         50       40
190 E 1 88 106 115 15 * 80
193 E 1 90 107 130 15 * 80         85       70
196 E 1 112 138 120 15   100       85       70

Highlighted art. no. according to DIN 6343

Some collets are marked with both LQ and Q; when ordering one of them, please indicate bore patterns for pattern Q only.

Pressure sleeves and clamping fingers on request.

 
Clamping Diameter

Testing Point

Running Concentricity
d from d to L Standard High Precision
1 1.6 6 0.02 0.01
1.6 3 10 0.02 0.01
3 6 16 0.02 0.01
6 10 25 0.02 0.01
10 18 40 0.03 0.015
18 24 50 0.03 0.015
24 30 60 0.03 0.015
30 50 80 0.04 0.02
50 60 100 0.04 0.02

 

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Similar to DIN 6343
The LQ pattern may have a radial runout which is 50 % higher. The precision design attracts an additional charge.

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