SJ3 TM Series Engineering Class Chains Patented Sealed Joint Technology
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TSUBAKI ® SJ3 TM CHAINS PROTECTION FOR THE HARSHEST ENVIRONMENTS
Tsubaki’s patented SJ3 Sealed Joint Technology effectively protects and defends a chain’s bearing areas by impeding the infiltration of aggressive fine and sticky particulate. In doing so, the risks of premature elongation, joint lockage and/or dry cavitation are greatly reduced, thus allowing for more effective chain performance and extended life. The Tsubaki SJ3 design, made in the U.S.A., utilizes a unique combination of three distinct seals (a barrier, a polymer face and a stainless steel inner ring) to create an innovative labyrinth structure that effectively hinders the infiltration of foreign matter without compromising any strength or dynamic performance. Depending on the temperature and severity of the application, seal materials and selection can be custom tailored. Please contact your local Tsubaki Representative or Tsubaki Engineering to discuss your specific application in detail and schedule an onsite technical analysis.
Tsubaki SJ3 - Documented Field Results by Material Type
Standard Chain
Finish Cement
Potash
Fly Ash
SJ3 TM American Made. American Strong. ™
Carbon/Coke
Clinker
Baggasse
Gypsum
0
1
2
3
4
5
6
7
8
9
Lifespan Multiplier Versus Standard
The performance results presented above are actual field documented cases for Tsubaki’s patented SJ3 sealed chain. Additional information on each of these cases can be obtained by contacting your local Tsubaki Sales Representative or the Tsubaki Engineering Chain Division. It is important to note that each and every application is unique and performance results may vary depending on site/material/application specific characteristics, dynamics and maintenance practices.
1. Extended Bushing Barrier Seal The chain bushings are extended beyond the inside sidebars to minimize the clearance between the outside bars and the bushings. This in turn creates a solid physical barrier that effectively obstructs abrasive and/or sticky material from entering and/or residing in the critical pin/bushing area. 2. Polymer Wide Face Seal Constructed of a high temperature engineered polymer, this seal encircles and resides on the outer race of the extended bushing. Upon assembly, this seal is compressed between the inner and outer side plates to engage a second barrier of protection for the critical pin/bush area. Tsubaki maintains a well-diversified portfolio of polymeric options that can accommodate temperatures up to 400 degrees Fahrenheit. Please contact Tsubaki Engineering for further assistance in selecting the correct material for your application. 3. Stainless Steel Internal Ring/Labyrinth Seal This patented seal holds tight to the pin and rotates freely within a specially machined groove in the bushing, creating an intricate internal labyrinth that successfully hinders the progression of aggressive fine particulate within the bearing area. Understanding the SJ3’s Unique Labyrinth Structure - Three Distinct Seals for Ultimate Protection
Tsubaki’s SJ3 technology has demonstrated outstanding performance in demanding environments including:
Pet Coke
Gypsum
Clay
Coal
Fly Ash
Cement/Clinker
Potash & Fertilizers
Grain & Seeds
Sugar/Baggasse
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©2016 U.S. Tsubaki Power Transmission, LLC. All Rights Reserved. Printed in U.S.A. 04/16 Rev.0 L13028
NOTE: IN ACCORDANCE WITH THE POLICY OF U.S. TSUBAKI POWER TRANSMISSION, LLC TO CONSISTENTLY IMPROVE ITS PRODUCTS, THE SPECIFICATIONS IN THIS CATALOG ARE SUBJECT TO CHANGE WITHOUT NOTICE.
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