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CR SERIES Collet Chucks
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Collet chucks deliver near zero part movement, high concentric accuracy and compact design Offered in various sizes for main spindle or sub-spindle applications. |
Special Features
- Near Zero Part Movement
- Hardened and Ground Alloy Steel Design
- Low Maintenance
- Parts Stop/Ejectors Optionally Available
- High Speed
- High Concentric Accuracy
- Ideal for Second Operations
- Variety of Sizes and Configurations
- Excellent Gripping Characteristics
- Special Collets Availiable
SPECIFICATIONS
| MODEL |
UNIT |
CR42-L |
CR60-L |
CR66 |
CR80 |
| Plunger Stroke |
in. |
0.276 |
0.276 |
0.394 |
0.472 |
| Max. Draw Bar Pull Force |
lbs. |
5620 |
6744 |
8535 |
9885 |
| Max. Gripping Force |
lbs. |
12364 |
13488 |
22200 |
25700 |
| Net Weight |
lbs. |
23 |
39 |
45 |
70 |
| Max. RPM |
rpm |
7100 |
6300 |
4500 |
4000 |
Collet Drawings
Spring Collet |
Master Collet
(S-Type Pads) |
Crawford
Multi-Bore Collet |
DIMENSIONS
| MODEL |
UNIT |
CR42-L |
CR42A05-L |
CR42A06-L |
CR60-L |
CR60A06-L |
CR60A08-L |
CR66A08 |
CR80A08 |
CR80A11 |
| Mount |
|
dia. 5.512x0.197 |
A2-5 |
A2-6 |
dia. 6.693x0.236 |
A2-6 |
A2-8 |
A2-8 |
A2-8 |
A2-11 |
| A |
in. |
4.331 |
4.331 |
4.331 |
5.433 |
5.433 |
5.433 |
6.614 |
8.268 |
8.268 |
| B |
in. |
5.236 |
5.630 |
5.709 |
5.827 |
6.299 |
6.142 |
6.299 |
7.815 |
9.685 |
| C |
in. |
0.787 |
0.787 |
1.181 |
0.945 |
1.063 |
1.457 |
1.181 |
1.181 |
2.992 |
| D |
in. |
1.181 |
1.181 |
1.181 |
1.181 |
1.181 |
1.181 |
0.787 |
0.984 |
0.984 |
| E max. |
mm |
M55x1.5 |
M55x1.5 |
M55x1.5 |
M70x1.5 |
M70x1.5 |
M70x1.5 |
M90x2 |
M100x2 |
M100x2 |
| F |
in. |
2.441 |
2.441 |
2.441 |
3.150 |
3.150 |
3.150 |
|
|
|
| G max. |
in. |
0.433 |
0.039 |
-0.039 |
0.394 |
-0.079 |
0.079 |
1.457 |
2.283 |
3.681 |
| G min. |
in. |
0.157 |
-0.236 |
-0.315 |
0.118 |
-0.354 |
-0.197 |
1.063 |
1.811 |
4.154 |
| H |
in. |
6.299 |
5.315 |
6.496 |
7.480 |
6.496 |
8.268 |
8.661 |
8.661 |
9.843 |
| Fig. |
# |
1 |
1 |
1 |
1 |
1 |
1 |
3 |
2 |
2 |
CAPACITIES (Capacities in Inches)
| MODEL |
CRAWFORD ™ MULTIBORE COLLET |
SPRING COLLET |
MASTER COLLET & PADS |
| ID NO. |
Round |
Hexagon |
Square |
ID NO. |
Round |
Hexagon |
Square |
ID NO. |
ID NO. |
| CR42 |
M673 |
1.654 |
1.418 |
1.182 |
4728 |
1.654 |
1.418 |
1.182 |
5205 |
S-10 |
| CR60 |
M677 |
2.363 |
2.048 |
1.654 |
4291 |
2.559(1) |
2.048 |
1.654 |
5207 |
S-16 |
| CR66A06 |
T285 |
2.625 |
2.250 |
1.750 |
|
|
|
|
5209 |
S-20 |
| CR66A08 |
T285 |
2.625 |
2.250 |
1.750 |
K244 |
2.363 |
2.048 |
1.654 |
5209 |
S-20 |
| CR80 |
J660 |
3.125 |
|
|
H47 |
3.150 |
2.716 |
2.204 |
5211 |
S-26 |
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