Hello, everyone.

This is Enta.

I'm in Nagano starting today. It's... painfully cold over here...

Ouch... That hurts...

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But that's beside the point.

A staple consumable for rotary percussion instruments

This is a part that anchor makers are familiar with.

If this breaks, it'll be a real problem.

I imagine there are some people who have never heard of it.

This isCam followerThat's what it is.

This is the part that supports the hammers of the rotary percussion instrument.

This bearing runs along the rail.

It runs along the track while supporting the hammer.

As shown in the photo above, they are attached to the corners on the front, back, left, and right.

Even when it sways from side to side, it doesn't wobble more than necessary, thereby minimizing mechanical friction.

As it gets older, the grease nipple wears out, and the bearing inside starts to crack.

The cam follower in the photo isn't cracked, but in some cases, it can crack completely.

That’s how much force is being applied.

 

Since this part is a consumable in rotary percussion instruments, it’s important to inspect it thoroughly.

But this cam follower is actually pretty expensive, lol.

There are four installation locations, and three are used at each location. That’s why we need a total of 12.

If you replace the parts one by one starting with the broken ones, it should be fine for the most part, but if you're going to replace them, it's less likely to break if you replace them as a set.

Roughly speaking, they cost around 4,500 yen each.

 

There are some inexpensive Korean-made products, but they aren't very durable (compared to our products).

As for domestic manufacturers, would it be NTN or NSK?

I'm not really a fan of the press-fit grease nipple, though... lol

The reason anchor installation companies charge such high rates is that these kinds of supplies are outrageously expensive.

The same goes for the casing—everything, from start to finish, is just so expensive.

If you buy standard hydraulic hoses at a local hydraulic hose shop, they’ll cost at least three times the wholesale price—and up to five times as much.

It's ridiculously expensive, isn't it?

But since we can't do our jobs without these supplies, we should probably take on jobs with higher rates, right? lol

 

See you later.