Cadena 520 frente a 50, 530 y 630: cómo evitar el desgaste rápido de los piñones

Take my advice: Don’t save money by attaching industrial ANSI 50-gauge chains to your 520 or 530 motorcycle dental tray!

While both the 50-gauge and 520 chains have a 5/8-inch pitch and a 1/4-inch inner width, making them look identical in size, they harbor a killer pit: the 50-gauge chain’s rollers (10.16mm) are smaller than the standard motorcycle 520 rollers (10.29mm). That small difference can quickly chew your expensive tooth tray into “serrations”. Also, for those of you struggling with whether to use 530 or 630 chains when renovating your old car, let me be frank: the 630 is long outdated. Replacing your vintage 70s high-displacement locomotive from a 630 to a modern 530 chain will not only lose nearly two pounds of rotating mass, but will also significantly increase its tensile strength.

Mixing industrial hardware into a high-speed motorcycle transmission system is not an option without accurate caliper data. Let’s break and tear below, how these mismatched size chains can ruin your car step by step.

RPS Iron Law Of Compatibility

Many technicians who know a little bit of fur look at the standard pitch table and find that the numbers match, so they think the chains can be exchanged freely. But the real experts look at “RPS Triangle ”——roller (Roller), pitch (Pitch), side clearance (Side-clearance), one of the three is indispensable. The pitch only tells the distance between the two pins; the roller diameter determines whether the chain can fit perfectly on the bottom of the disc teeth; and the side clearance determines whether the chain plate will scrape against the engine box at high speeds. If just one of these three points doesn’t match, your drivetrain will eventually fail.

520 Vs. 50 Chain: 0.13mm Deadly Trap

If you hard-fit a No. 50 agricultural machinery chain onto a 520 motorcycle disc, the disc will absolutely wear out quickly and irreversibly. Both chains have a 5/8-inch (15.875 mm) pitch and a 1/4-inch (6.35 mm) inside width. What is the fatal difference? Roller diameter! The ANSI No. 50 chain has 0.400-inch (10.16 mm) rollers, while the 520 motorcycle chain has 0.405-inch (10.29 mm) rollers.

Don’t underestimate this measly 0.13mm, it’s enough to ruin the entire set of transmissions. The 10.16mm rollers on a 50-gauge chain are too small and will sink too deep into the teeth of a 520-tooth disc, with the force-bearing surfaces completely wrong. Normally, the force of acceleration should be evenly distributed across the arc of the tooth, but now because the rollers are small, the huge pulling force is concentrated at a tiny point of force. This local stress will pull and deform the teeth of the tooth disk into barb shape within a few hundred kilometers. In order to save the 20 or 30 yuan to buy a tractor chain, I ended up paying thousands of yuan to replace the front and rear discs, which was definitely not worth the loss.

530 Vs. 50-Gauge Chain: The Size Doesn’t Match At All

You want to attach a regular 50 industrial chain to a 530’s dental tray? Physically impossible. Some newbie pictures are cheap and want to do this, but the inner width is not allowed at all. The width between the inner and outer plates of a 530 chain is 3/8 inch (9.53 mm), while the inner width of a 50-gauge chain is only 1/4 inch (6.35 mm).

If you force the No. 50 chain onto the 530 disc, the chain plate will hit both sides of the disc teeth directly, and the rollers will not touch the tooth roots at all. You can’t even drive a kilometer in this state. While industrial chains do have widened versions ——like the 50-2 (double-row chain) or some agricultural specialty wide chains, to accurately match the 3/8-inch inner width and 10.29mm rollers of the 530 teething pan, you still have to be honest and buy a dedicated motorcycle chain.

530 And 630 Chains: The Only Way To Renovate An Old Car

Classic large-displacement motorcycles from the 1970s and 1980s (such as the Kawasaki KZ1000 or Suzuki GS1000) came with big, bulky 630 chains. The reason was simple: metallurgical technology at the time was not good, and if we wanted to withstand 90 horsepower, we had to rely on stacking and thickening. The 630 chain reached an exaggerated pitch of 3/4 inch (19.05 mm), while the current 530 chain has a pitch of 5/8 inch (15.875 mm).

Downgrading (or rather upgrading) the 630 drive to a 530 configuration is a must for modern vintage car refurbishment players. Today’s tensile steel and X-seal technology can easily withstand a modern 530 chain with a tensile force of more than 10,000 pounds, which is the strength that has long pressed the original 630 to the ground and rubbed it.

Throw away the 630 and lose 1.5 to 2 pounds of rotating mass directly from the drivetrain. This substantial “lightening” can immediately improve the acceleration response of the rear wheels, reduce the gyroscopic effect and make bending and dumping faster, while also greatly reducing the wear of the transmission output bearings. Moreover, if you want to buy a 630 chain now, you can only choose those expensive and unpopular brands; after switching to 530, there are hundreds of cost-effective and high-performance chains on the market to choose from.

Industrial Assembly Line VS Highway Storm

What are the typical applications of ANSI 50‑series chains? They are commonly used in conveyor systems and agricultural machinery, characterized by low-speed, steady‑state operation. And what about the motorcycle chain? To withstand violent throttle opening and closing, engine braking, and crazy friction at ultra-high speeds. The ordinary No. 50 chain has no built-in grease at all, and no original O-ring or X-type oil seal, so it can’t cope with the harsh conditions on the highway. If you dare to run an industrial chain without oil seals at 8,000 rpm, the pins inside will overheat and elongate in an instant, then snap right off.

PREGUNTAS FRECUENTES

In 520 or 530 chains, what exactly does the “5” stand for?

The first number of the chain model represents the “pitch” (that is, the distance between two adjacent pins), and the unit is 1/8 inches. “5” means a pitch of 5/8 inch. If it is a 630 chain, the “6” means that the pitch is 6/8 (that is, 3/4) inch.

Can I put the 520 chain on the 50 industrial gear?

It can be loaded, but it will be scrapped early. The rollers of the 520 chain are large (10.29mm), and the No. 50 gear is processed by 10.16mm rollers. The large roller cannot fit completely into the bottom of the pinion, the bite is not tight, and the operation will feel loose (with open volume).

Why does my retro motorcycle factory match 630 such thick chain?

Motorcycle factories in the 1970 s could not get modern high-strength alloy steels. Faced with the increasing torque of the locomotive upgraded on behalf of the public at the beginning of the year, the engineer was afraid that the chain would be broken, so he could only use the simplest and cruelest method-to enlarge the chain, so he used a giant 630 chain with a pitch of 3/4 inches.

Do you need to buy a special customized dental tray to change from 630 to 530?

Of course. You can’t hang the 530 chain on the 630 tooth plate, because the pitch and tooth pitch of the two are completely different. If you want to change it, you have to buy 1 complete set of special conversion kits, which contain the 530 front tooth plate, the 530 rear tooth plate and the matching 530 chain.

Is the No. 50 chain used in agriculture stronger than the 520 motorcycle chain?

Think too much, and no. For industrial ANSI 50 chains, the tensile strength is generally around 6,100 pounds. The high-quality 520 motorcycle chain uses hardened pins and higher-grade alloy steel. The tensile strength can easily exceed 8,500 pounds, and is specially used to carry the instantaneous impact force of the motorcycle during rapid acceleration.

Does the unsprung quality have a great influence on the performance of motorcycles?

It’s too big. Parts such as hubs, chucks, and chains that are not supported by shock absorbers and need to rotate (unsprung and rotating mass) will eat up engine power when they rotate. Replacing the dead and heavy 630 chain with 530 is equivalent to releasing the horsepower that has been consumed in vain. The car will speed up faster and brake more effortfully.erformance?

Unsprung and rotating mass (like wheels, sprockets, and chains) requires engine power to spin. Reducing this weight by swapping a heavy 630 chain for a 530 chain frees up parasitic horsepower, allowing the bike to accelerate quicker and brake with less effortfully.