What does the V belt suffix LD mean

There is Li (V-belt inner circumference length) LW (V-belt reference length) LA (V-belt outer circumference length) I haven't seen the suffix is LD, Puguan has a new V-belt skeleton new material - polyester tempered brown wire special belt core - does not run long, maintenance-free, and the life is far beyond the imported belt.

Now that they are getting younger and younger, many of the operators who play harvesters are post-90s, and even some are post-00s, so they are not very experienced when buying harvester accessories, and there are often inappropriate sizes of V-belts purchased and a lot of money is wasted. The reason is that when they buy a harvester V-belt, they mainly pay attention to the model and size of the V-belt, so some people will say, isn't this right? How can there be a situation where the size of the V-belt model is not suitable?

The answer is definitely no problem, but when the operator buys a V-belt, he should not only pay attention to the model size of the belt, but also pay attention to the suffix LD of the V-belt. But don't underestimate the V-belt LD suffix, sometimes just because of the difference in the suffix, it will cause the V-belt you purchased to be inconsistent with your pulley, resulting in V-belt damage and a waste of thousands of dollars. Today, let the Liannong Triangle Belt manufacturers, who have been engaged in the production and manufacturing of the V-belt for more than 20 years, take you to understand what V-Belt LD stands for.

X in Liannong triangle belt manufacturers, triangle belt LD is actually an expression of the length of the triangle belt, that is, on behalf of the reference length of the triangle belt, usually Liannong brand A, B, C, D, SPZ, SPA, SPB, SPC and other models of the triangle belt is usually represented by the reference length LD.

Of course, in addition to LD, the expression of the length of the V-belt also includes LA, LW, which indicates the effective length of the V-belt, and this suffix is used in some models of the Liannong brand belt, such as V-belt 2HB and 3HB; Li and la represent the inner and outer circumference lengths of the V-belt respectively, and they can be customized according to the customer's requirements, and the four V-belt suffixes can be converted by a certain coefficient.

The above is the meaning of the V-belt LD, the purchase of V-belt operators, especially young operators, must read several times, understand the meaning of the letters of the V-belt suffix, so as to avoid buying the wrong size, save thousands of dollars unnecessary losses.

Weihai Tian takes the Chinese wheel.

Recommended on 2016-08-28

There is li (triangle inner circumference length) lw (triangle base length) la (triangle outer perimeter length) I haven't seen the suffix is LD, Puguande triangle skeleton new material - polyester tempered brown silk special belt core - not long, maintenance-free, life far beyond the imported belt, details can be Tudou **search "Puguande" I hope it will help you.

The back of 9144 should not be less than the number should also be L, the inner circumference of the V-belt is 9144mm, and the base length is 9219mmD9144 is the inner perimeter and D9219 is the outer perimeter. The latter is li and ld li is the inner perimeter of ld li.

LI inner diameter, LD LW LP knuckle round, LA periphery. I specialize in three-dimensional deltas

Li Inner Perimeter, la Outer Perimeter, LD, LP (the length of the segment is the reference length) lw=ld LP, is the reference length of the V-belt, or the length of the tensile line C-type V-belt Li (inner length) = LP (section length) -56mm

Li is the inner circumference, the effective length Le, the outer circumference La=Le+10, Li=Le-40

li indicates the inner circumference of the triangle zone 1031

LD is the midline length of the triangle, the nominal length.

In general, the V-belt model represents a kind of stable performance.

The full name of LD is laser disc, which means laser disc in Chinese.

The information capacity of the laser disc is high, and the distance between the information trajectories is very narrow, so the laser disc should not be used in vibration or shock occasions to prevent human or mechanical vibration from causing poor laser beam tracking.

Keep the surface of the laser disc clean and avoid falling into dust. When storing discs, be sure to pack them in an envelope. When picking up the video, hold the edge of the video disc in your hand to prevent fingerprints and sweat stains from staining the surface of the disc and triggering the laser beam scanning.

In the 1980s, VHS screenings were quite expensive compared to the popular ones at the time. The image quality provided by LD is close to that of radio and television, and because it is non-contact, there is no problem that the image will deteriorate if the video is played too much.

Laserdisc (English: LaserDisc), abbreviated as LD, is a popular image storage in the 1980s and 90s**, mainly used to store movies, and has now been completely replaced.

Many people think that LD uses digital technology, but in fact, both images and sounds are stored on video discs using the analog method of frequency modulation. Post-NTSC discs can actually load audio tracks digitally (mainly PCM or Dolby Pro Logic) onto disks, while PAL discs can only store audio tracks in either digital or analog ways.

The full name of LD steel is "7Cr7Mo2V2Si", which belongs to high-strength and toughness cold-work die steel, and the executive standard: JB T 6058-92

LD (7Cr7Mo2V2Si) matrix steel type cold work die steel has high toughness and wear resistance, high bending strength, excellent cold and hot processing technology, small heat treatment distortion, and strong versatility.

Applications of LD(7Cr7Mo2V2Si) Steel:

LD (7Cr7Mo2V2Si) has better performance than CR12 type high carbon and high-speed steel 6Mo5Cr4V2, with higher strength and toughness, and better wear resistance, and the application is becoming more and more common. It can be used to manufacture more than dozens of molds such as bolt cold heading trimming die, cold heading light stamping die, automobile spring punching die, bicycle central shaft cold extrusion die, silicon steel sheet stamping die, etc., and the service life is doubled or even more than ten times higher than that of the original steel grade (CR12MOV, W18CR4V, W6MO5CR4V2, CR12, GCR SICR).

The chemical composition of LD(7Cr7Mo2V2Si) is shown in the following figure:

It's the capitalization of the first letter of the brother"laodi"Abbreviated as ld, brother, hehe.

Someone actually said that it was the meaning of the wife, but what I understood was always the meaning of the elder brother.

l Semi-automatic, burst fire for assault rifles. dFully automatic. Bursts.

The meaning of the boss and the leader is to call the wife boss, or the leader.

Can't LD machines read vinyl discs?

ld = Lead.

That is, the leader of the family.

The meaning of LI and LD of V-belt A1800LI and A1244LD is: LI represents the inner diameter, and LD represents the pitch circle.

The diameter of the inner circle of a circular object is called the inner diameter, which is usually measured directly from a micrometer or vernier caliper, and the symbol is . The outer diameter is the outer diameter and the symbol is .

In the gear transmission with fixed ratio, the trajectory of the node in the gear motion plane is a circle, and this circle is the pitch circle. At this time, the gear transmission can be considered as the tangent of the pitch circle of the two gears to do pure rolling. It can also refer to the displacement of one or more circles concentric with the boundary circle on the circular plate to remain zero during vibration.

li is the meaning of inner circumference, LD, not very common, should be the meaning of outer perimeter!