472E ER40 Collet runout 0.01mm
Runout ≤0.01mm
Material:65Mn
Hardness:HRC44-48
What are the standard ER collets?
Standards of ER Collets
These collets are usually found in a standard series as: ER-8, ER-11, ER-16, ER-20, ER-25, ER-32, ER-40, and ER-50. The numbers represent the opening diameter of the tapered receptacle in millimeters.
Who invented the ER collet?
In 1972, Fritz Weber, founder of Rego-Fix, created and patented the ER collet. The design is a modification of the previously popular E collet design, using the same taper, but simply adding the groove
How do you install an ER collet?
Mounting instructions for ER collets and nut:
- Put the collet into the nut, turn the collet slightly. ...
- Fix the nut and the collet on the spindle rotate the nut until the collet is in pressing, wipe the straight shank of cutter and insert it into the pilot hole.
What are the most common ER collets?
The following is a list of tool diameters that can be used with each size collet chuck. Essentially, the most popular, and again, readily available from a number of sources, are the ER 16, ER20, and ER32... in no particular order
What are the sizes of ER collets?
ER Collet Sizes
| ER Collet |
Length |
Clamping Range |
| ER-20 |
31.5 mm (1.24") |
1-13 mm (0.039-0.512") |
| ER-25 |
34 mm (1.34") |
1-16 mm (0.039-0.630") |
| ER-32 |
40 mm (1.57" |
1-21 mm (0.039-0.827") |
| ER-40 |
46 mm (1.81") |
3-26 mm (0.118-1.024") |
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