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Tsumura Bar 13" Solid Sprocket Tip Bar - 371SR2
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Purchase options and add-ons
- 13" K095 Mount . 325" Pitch, . 058 Gauge, 56 Drive Links for Husqvarna Chainsaws
- Fits Husqvarna models: 133, 136, 137, 1400, 140S, 141, 142, 154, 1600, 234, 238, 240, 242, 242XP, 243, 246, 254, 254XP, 257, 261, 262, 262XP, 33, 336, 338XPT, 339XP, 340, 340E, 340SE, 340SG, 345, 346, 346XP, 346XP E-TECH, 346XPG, 350, 351, 353, 353E-TECH, 353G E-TECH, 355, 357, 357XP, 357XPG, 359, 359E-TECH, 36, 360, 362, 362 XP, 38, 40, 41, 42, 435, 435E, 44, 440, 440E, 444, 445, 445E, 45, 450, 450 50th Anniversary, 450E, 455, 455 RANCHER, 455e RANCHER, 460, 460 RANCHER, 466, 49, 50, 51, 543XP, 543XPG, 545, 545 MARK II, 55, 55 Rancher, 550XP, 550XP MARK II, 550XPG, 555, 560XP, 560XPG, 57
- Made from the finest, high carbon alloy steel
- item package weight: 35.0 pounds
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- Package Dimensions : 16 x 4.8 x 0.9 inches; 1.75 Pounds
- Date First Available : February 13, 2020
- Manufacturer : Tsumura
- ASIN : B084RTH41G
- Country of Origin : Japan
- Best Sellers Rank: #386,279 in Patio, Lawn & Garden (See Top 100 in Patio, Lawn & Garden)
- Customer Reviews:
13" K095 Mount . 325" Pitch, . 058 Gauge, 56 Drive Links for Husqvarna Chainsaws
From the manufacturer
Tsumura World’s Highest Quality Chain Saw Guide Bars & Accessories
Tsumura chain saw bars & accessories are manufactured and assembled on advanced technology machines and equipment to provide high standard of durability , strength, finish and accuracy in the heat treatment process. Our chain saw guide bars also incorporate uniform groove gauge tolerances for precise chain fit and improved cutting stability over bar nose. The sprocket noses are made of quality material and carefully heat treated and the roller bearings are the best ones available. Even the rivets were studied to determine the strongest and most compatible material specifications. Our bars are sold to all markets throughout the world and are the choice of professional loggers everywhere.
The Laser cutting process allows us flexible and fast cutting for making any kinds of bar shape. Any prototype can be made according to your request. Please feel free to consult us about prototype manufacturing.
Salt Bath Heat Treatment
Guide bars require both of contrasting characteristics of toughness and hardness. Tsumura has adopted salt heat treatment that draws both of the contrasting characteristics maximally. The salt bath heat treatment is the best way to achieve ideal steel which has toughness and hardness.
Normally, Steel is heated over 800℃ immediately, but the salt bath heat treatment takes up slow heating method. Then, good hardened steel structure, which is stable and less distortion, can be obtained.
A saw chain rotates faster than 25m/sec on the chain tracking groove of guide bars, so straight rail of guide bar is important.
If the rail is not straight, you would have some trouble. For example, guide bar would be biased wear. Also, you can’t cut tree straightly.
That’s why, Tsumura has three time straightening process which are arranged after the press process, the heat treatment, and finishing process. the straightening process is carefully done by professional manually.
Light & Tough
Tsumura’s chain saw guide bars incorporate a unique design that makes the lightest guide bars available today. Dove-tailed notches are staggered and cut into the bar surface and packed with hard resin which reduces the weight of the guide bar by about 20%.
This is improves cutting efficiency and stability and also reduces user fatigue. In keeping pace with the progress in the technology.
Solid Guide Bars
Solid guide bars are manufactured from one plate of super hard alloyed steel SKS-51 by cutting groove. Also, we adopt salt heat treatment which is the best way to achieve ideal steel which has hardness and toughness.
Solid guide bar is tougher than laminated guide bar because it is manufactured from one plate. Besides, Solid sprocket nose guide bar nose can be replaceable and adequate change of nose part will extend guide bar life. It is essential to clean oil hole cleaning after using chainsaw. Solid sprocket nose type needs grease inject after/before using chainsaw.
We also manufacture a light weight edition which is about 20% lighter than standard type.
Top reviews from the United States
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We hadn't used the first bar for more than 10 hours when it tore up. I was limbing the lower limbs on an eastern red cedar to gain access to the base of the tree to cut it down. As I bumped a small limb, the saw SLIGHTLY kicked back and the chain would no longer turn. I checked to make sure the chain brake was disengaged and it was. Closer inspection showed that the roller bearings in the nose sprocket has come out and wedged between the outer layer and the sprocket completely locking it down. I contacted the seller and he was VERY nice and sent me a new sprocket tip a no charge. I replaced the tip and figured I was good to go. Nope, the new tip didn't last 5 hours. I contacted the seller again, and he gave me several pointers about what might be causing the issue.
Wanting to like this bar, I ordered another tip, replaced the chain, and replaced the rim sprocket so that every component was brand new. The result...another tip that did the exact same thing in about 20 hours of use.
I want to like this bar better, but until a more durable nose sprocket is developed for professional use, I will not be buying anymore Tsumura bars. As a comparison, we've used Stihl and Husqvarna bars for hundreds of hours, and with proper maintenance we have only had one other nose sprocket go out...after 250+ hours of use.
Hope this helps someone make a more informed buying decision
Strong steel, light and strong tip.