Mantra Bearing Race

Discuss Spyderco's products and history.
bigddy263
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Re: Mantra Bearing Race

Postby bigddy263 » Sun Sep 16, 2018 6:05 pm

My washers are due in on Tuesday. Hopefully I will have some results for you guys NLT Wed.

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Surfingringo
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Re: Mantra Bearing Race

Postby Surfingringo » Sun Sep 16, 2018 6:47 pm

Just to offer a data point, my mantra is a couple of years old and is stil as buttery smooth as it was when new.

Bodog
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Re: Mantra Bearing Race

Postby Bodog » Sun Sep 16, 2018 7:44 pm

I'd like to point out that buttery smooth or even almost frictionless movement can easily be accomplished with phosphor bronze washers, people want bearings for better than almost frictionless movement. Some companies get it right and if a company cannot get it right, they should stick with the buttery smoothness of pb washers.

Compared to what other companies can do with bearings, spyderco missed the mark with the mantra and other knives. Compared to what other companies can do with pb washers, spyderco nails it.

I have one military and one pm2 that if put into a flipper design would absolutely stand up to bearings in terms of frictionless action. When bearings are worse than washers or washers are as good as bearings in terms of freedom of movement, something is wrong with the bearing design.

I haven't heard anyone say spyderco's bearings are better than their washers. I've only heard people defend the bearings as being good enough. I've definitely not heard anyone compare them directly to other known quality manufacturers' bearings because i have a good feeling everyone knows who would win the majority of the time.

This isn't to say that spyderco sucks so please don't take it that way. I'm saying don't reinvent the wheel, so to speak. Spyderco is better than most regarding pb washers. Worse than most regarding bearings. Don't fix something that ain't broke.

GarageBoy
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Re: Mantra Bearing Race

Postby GarageBoy » Sun Sep 16, 2018 7:49 pm

I have no dog in the race (no pun intended) but part of me wishes Spyderco would just issue or install pb washers as requested

Would make a lot of people happy

I know a slightly crushed pivot won't necessarily bind, but I'm over about "perfection"

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Sharp Guy
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Re: Mantra Bearing Race

Postby Sharp Guy » Sun Sep 16, 2018 10:57 pm

Bodog wrote:
Sun Sep 16, 2018 7:44 pm
I haven't heard anyone say spyderco's bearings are better than their washers. I've only heard people defend the bearings as being good enough. I've definitely not heard anyone compare them directly to other known quality manufacturers' bearings because i have a good feeling everyone knows who would win the majority of the time.
I'm not sure why we have to keep beating this horse but....

I get what you're saying about Spyderco's knives with PB washers. They can be really smooth and I have the compression, frame, and liner lock knives to prove it. However, the Mantra I have is a tick more free than any of my 4-PM2s, 4-Para 3s, Sage 5, Sage 2, or GBs. It's not quite like my ZT 0450 but it's more than smooth enough to flip just fine. How fast do we need these things to open?

Some of you act like Spyderco has done nothing about the bearing situation. They've evaluated the situation and applied CQI. The Advocate was a relatively new model and they spent the time and money to redesign the knife to accept a new bearing system, which I think is great BTW. I had the opportunity to talk with Gayle Bradley a few months ago. He thought it was ridiculous that Spyderco felt the need to redesign the knife. Personally, I'm glad they did. The new system is more stout and seems to be really smooth in my Advocate and Sliverax. Going forward we'll see new models using this new system and I hope and pray that people will finally stop moaning about it.

As far as Spyderco issuing or installing PB washers as requested. My guess is that there isn't an ideal sized washer that will work. The one guy's saying he had to buy a combination of washers to stack to attempt to make it work. The Mantras have been out for a few years now and it's probably just easier to call it quits on this version. I've said this before....with the Mantra 3 being introduced, I'd be willing to bet the Mantra and Mantra 2 will be on the discontinued list when it come out next month. Which is a shame IMO.
Of all the things I've lost I miss my mind the most!

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Evil D
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Re: Mantra Bearing Race

Postby Evil D » Mon Sep 17, 2018 12:40 am

Nope. Not gonna do it.
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foofie
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Re: Mantra Bearing Race

Postby foofie » Mon Sep 17, 2018 12:45 pm

Will the Mantra3 have the same bearing system as the Sliverax? The Sliverax works very well, and I would have no complaints about this bearing system in the Mantra3.

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Mr Blonde
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Re: Mantra Bearing Race

Postby Mr Blonde » Mon Sep 17, 2018 1:08 pm

FWIW, from looking on the outside in, and with prototypes, the sliverax bearing system did look very similar to the new mantra 3.
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bigddy263
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Re: Mantra Bearing Race

Postby bigddy263 » Mon Sep 17, 2018 1:36 pm

Well, good news/bad news. The washers arrived early. But, after installation lockup is good, smoothness is good and there is no play, but there is too much friction for a flipper. The resistance will not allow the blade to be flipped open at all. I used 15wt nano oil between each washer, but it feels like there is heavy grease in the pivot. I tried breaking it in by open/closing it many times, but it didn't seem to change. I also tried to slightly overtorque it and work it back and forth, but that didnt work either. It seems the guys from Spyderco have a pretty good design already. I am open to suggestions.

Daveho
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Re: Mantra Bearing Race

Postby Daveho » Mon Sep 17, 2018 1:50 pm

When I did mine I had the same issue.
I worked the washers a little on a dragons tongue stone and it was great after that- any very fine abrasive should do I think

bigddy263
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Re: Mantra Bearing Race

Postby bigddy263 » Wed Oct 10, 2018 5:56 pm

Quick update, I put the bearings back in, loosened the frame lock, and its pretty good now. Opens completely about 95 percent of the time and is always smooth now. The detent is a little weak, but its ok for my taste.

brainfriction
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Re: Mantra Bearing Race

Postby brainfriction » Wed Oct 10, 2018 6:18 pm

Are these the same bearings as the Domino? Because my Domino has always been smooth, seems like a lot of the issues with these flippers stem from distorted washers.

bigddy263
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Re: Mantra Bearing Race

Postby bigddy263 » Thu Oct 11, 2018 4:03 am

Not sure about the domino, I haven't had my hands on one. I did preorder a Mantra 3 though. I prefer a stainless steel, and I trust that they got the pivot right on this one. Should be an absolutely sweet knife. fingers crossed.

bigddy263
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Re: Mantra Bearing Race

Postby bigddy263 » Sat Oct 13, 2018 5:36 pm

Ok, last post on this one(probably). Since loosening the tension in the frame lock, this knife is absolutely sweet. It opens push button style great, and light switch style Ok. it still opens best with a flick of the spydie hole. There is no lock stick anymore. And it will almost fall shut, even with the light blade. To loosen it, I removed the overtravel stop, and bent it by hand. I went a little too far and had to bend it back a little. To me the tension fits the knife size perfectly now, it was too beefy before. I love my "executive delica" now, and im sure it will last a lifetime. I hope you get yours to a place that you can love it also.


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