Description
High speed high accuracy high durability ER-M Type nuts
High Precision Accessories ER colletsnut for ER type handle, the knife rod, extension rod nut. Selection of highquality spring steel, has a higher flexibility and service life.The clampingforce, clamping range, high precision, used for boring, milling, drilling,tapping, grinding and engraving processing. ER collets all through highprecision grinding, precision manufacturing line with the German DIN 6499specifications.
We also have many kinds of NUTS, suchas, A type, GER type, MS type, UM type, M type, KM type, NER type, and so on.The size of ER-M Type is ER16UM, ER20UM, ER25UM, ER32UM, ER40UM, ER50UM.
Comprehensive features of ER-M nuts
1. Material: 20CrMnTi.
2. Made from alloy steelhardened to 50-53 HRC
3. Heat treatment and thermal aging treatment have improved thestability of accuracy and dimensions.
4. Thread and a slope of 30 degrees have once molding processed.The tolerance class of thread use 4H, accuracy detected one by one.
5. Pre-balance is G2.5-20000RPM.
6. Surface coating processing treatment, improve surface hardnessand endurance, cleaness better, antirust, accuracy more stable, surface moresmooth, feel comfortable, appearance nice.
How to install the collet nut?
Operation is shown in the figure above
1. Put the collets into the nut, turn the collets slightly. Pushit into the nut at the offered direction evenly when the offset flange sinksinto the undercut of the collets.
2. Fix the nut and the collets on the spindle rotate the nutuntil the collets is in pressing, Wipe the straight shank of cutter, andinsert it into the pilot hole. Tighten the nut with a wrench till the cutter isclamped heavily (Caution: never tighten the nut without cutter in it for itwill break).
3. When changing the tool. Loosen the nut and it shall bring outthe collets and the cutter together. And then draw the cutter out push outslightly the collets in the offered direction, it shall be ready for any change ofthe cutter.
Features:
The special structure is for balance to make sure the status of circular uniform distribution.
The collets chuck will not be loosened during machining, and please assemble and disassemble the chuck as the marked direction.
| Brand Name | chongde |
| SKU | CD010307-2535030 |
| Type | Standard |
| Size | ER25M |
| Thread Size(T) | M30 x 1.0 |
| Outside Diameter( D) | 1.37″ ( 35 mm ) |
| Overall Length (L) | 0.79″ ( 20 mm ) |
| Net Weight | 0.11 lbs |
| Gross Weight | 0.13 lbs |
| Meas |
1.37″ × 1.37″ × 0.79″ |
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