Precision Fastener, Carbon Steel Dtf-Lock Wheel Anti-Loosening Nuts

Precision Fastener, Carbon Steel Dtf-Lock Wheel Anti-Loosening Nuts

DTF-Lock Wheel Anti-Loosening Nuts  DTF-CL

 D M18×1.five M20×1.5 M22×1.five
S 27 33 33
d 39.5 forty eight 48
m 27 28 thirty 33
a six seven.5 eight

△Property Class: 10

Rewards of DTF-Lock thread

  1. Established and trustworthy anti-vibration and anti-loosening functionality.
  2. Extended nut and bolt service existence and exhaustion life.
  3. Affective reusability.
  4. No temperature variation influence and no strict software setting prerequisite.
  5. Totally free spinning application – assembly can be accomplished with human fingers right up until clamp load will increase torque is necessary for final seat. Easy to assemble and disassemble.
  6. No dimensional restriction.
  7. Match common male thread.
  8. No want for auxiliary locking objects, these kinds of as spring washer, locking washer, drilled/wire nut, thread adhesives, thread patches, etc.
  9. In addition to DTF-Lock nuts, DTF-Lock threaded holes have the very same self-locking functionality can also be developed with DTF-Lock faucets. These holes can be used in diverse equipment components with self-locking requirement.
  10. Can decrease thread stripping of delicate content (such as aluminum alloy).
  11. Lower deviation of k issue (ratio of torque and clamping load)

The cause why DTF-Lock fastener can efficiently stop thread from loosening is thanks to its exclusive framework. There is a 30° wedge ramp at the root of the female thread. When the bolt and the nut are tightly engaged, tooth crest of the bolt thread will push tightly against the wedge ramp of the DTF-Lock thread and therefore make large locking drive. Owing to change of the thread angle, the angle in between the typical power generated at the thread pair and the bolt axis is now 60° instead of 30° with an regular thread. Clearly, typical pressure of the DTF-Lock thread is significantly better the fastening pressure. So, the anti-loosening friction pressure produced by this standard force will turn out to be much greater.

For the common threads, the very first two engaged threads bear 70-eighty% of the overall load. The other engaged threads bear only a modest fraction of the overall load. So, beneath vibrating operating hundreds, fastener with regular thread type can very easily overcome the locking pressure created on the getting in contact with surface area and hence generate relative turning. Then the thread will become loose.

For DTF-Lock threads, because of to its exclusive construction, crest of each bolt thread push tightly against the 30° wedge ramp. The load can be evenly dispersed among all engaged threads. So the load can be evenly dispersed to each contacting surface area or stage, and various areas of the thread can generate nearly the identical anti-loosening friction force. It can stand up to transverse vibration. So, issues this kind of as loose thread or thread stripping, and so on. can be eliminated. In addition, tiredness power of the thread can also be tremendously improved.

The transverse load vibration test was performed with a Junkers vibration tester in the laboratory confirmed that the DTF-Lock thread presents fantastic anti-vibration functionality (see Fig.2). They examined 3 sorts of nuts, i.e. ordinary normal nut, successful torque locking nut and DTF-Lock nut. Each and every nut was analyzed for two minutes with the very same common bolt, the very same tightening torque, the same vibration amplitude and frequency, and the exact same vibration tester in the very same laboratory. The take a look at consequence was: normal standard nut turned free really swiftly and dropped all its locking capacity, powerful torque locking nut get rid of 70% of its locking capability, whilst DTF-Lock nut managed its locking capability in the course of the entire test length.

Aside from, even more transverse vibration assessments were conducted to examination the reusability of the three sorts of thread. The take a look at consequence was: the DTF-Lock self-locking nut has great reusability considering that it can sustain its locking pressure and locking efficiency after repeated screwing and unscrewing, although common nut and effective torque locking nut may gradually shed its locking pressure and locking functionality right after many moments of screwing and unscrewing.


Precision Fastener, Carbon Steel Dtf-Lock Wheel Anti-Loosening Nuts