Motion Control & Drives


High-performance Tsubaki sealed chains for harsh environments

November 2023 Motion Control & Drives

BMG’s extensive range of Tsubaki high-performance chains comprises engineering-class SJ3 sealed joint chains with improved sealing technology, designed to improve the reliability of many mechanical components exposed to harsh environments. An important feature is that extended bushing barrier seals prevent abrasive materials from entering and attacking chain joints, thus reducing wear and extending service life of chains. Tsubaki’s patented SJ3 labyrinth structure keeps each pin and bushing assembly free and clear of contaminants. This multi-seal combination inhibits fine particulates from entering critical bearing areas. As a result, the risks of premature elongation, joint lockage, and dry cavitation are reduced, allowing for more effective chain performance and longer life.

The Tsubaki SJ3 design comprises three independent seals. They complement each other to provide secure bushing and pin protection. The first seal is an industry-standard extended bushing that limits the clearance between the ends of the bushings and the mating sidebars. This provides a highly effective first layer of protection. The second seal is a polymer face seal placed around the extended bushings. These polymer face seals are available in various performance materials and can withstand temperatures up to 204°C. The final seal is a patented labyrinth seal that inhibits any remaining fine particles from entering the critical bearing area. The labyrinth is formed by a stainless steel ring attached to the pin, which rotates freely in a finely crafted groove in the bushing.

The durable chain is designed for dependable operation in harsh environments, including mining, cement, paper, sugar, grain, chemical, petrochemical, and asphalt.

For more information contact Marthinus Janse van Rensburg, BMG, +27 31 492 5701, marthinusj@bmgworld.net, www.bmgworld.net




Share this article:
Share via emailShare via LinkedInPrint this page

Further reading:

Ultrasonic testing for accurate bearing life predictions
Motion Control & Drives
NSK is the first company in 60 years to make a significant breakthrough in bearing life calculation techniques, helping end users to improve productivity and boost environmental protection.

Read more...
Ultrasonic testing for accurate bearing life predictions
Motion Control & Drives
NSK is the first company in 60 years to make a significant breakthrough in bearing life calculation techniques, helping end users to improve productivity and boost environmental protection.

Read more...
Caster for service robot applications
Motion Control & Drives
As part of a drive to get robots into more workplaces, operating side by side with humans, a team of expert development engineers at NSK has come up with a novel way to improve the mobility of cobots.

Read more...
Precise knowledge for precise applications
Motion Control & Drives
Aerotech has been supplying standard product solutions such as motors, drives, controls and positioning tables since 1970. Customised motion subsystems include positioning systems on granite structures with undercarriage and vibration isolation, and also external measurement systems.

Read more...
South Africa’s robotic future
Motion Control & Drives
National sales manager for Yaskawa Southern Africa, Jan T’Hart shares his insights on the future of automation in this country, pinpointing the trends set to redefine manufacturing. Yaskawa’s vision for the new year includes technological advancements, industry-specific needs, and a commitment to sustainability.

Read more...
ISO-Reliability Partners announces strategic partnerships for 2024
Motion Control & Drives
ISO-Reliability Partners capped off a highly successful 2023 with a landmark five-year tender to supply Royal Purple premium lubricants to Transnet Engineering for lubrication of high-speed traction motor bearings.

Read more...
It’s all in the bearings
Bearing Man Group t/a BMG Motion Control & Drives
Bearings are key components for the efficient and reliable operation of any equipment that involves rotating shafts or accurate movement. BMG Bearings Division offers a comprehensive range of bearings throughout southern Africa, including ball, roller, and linear bearings.

Read more...
Tough recycled polymer bearing
igus Motion Control & Drives
Motion plastics specialist, igus has introduced a new plain bearing made from recycled plastic. The bearing, iglide ECO P210, is a chemical-resistant variant that has been added to the company’s iglide ECO series.

Read more...
Drive solution for stacker reclaimer
Motion Control & Drives
Hägglunds Drives South Africa recently completed a retrofit project on the bucket wheel of a stacker reclaimer at Richards Bay Coal Terminal. The project entailed replacing a gearbox drive solution with a direct drive solution from Hägglunds Drives SA.

Read more...
World first planetary gearbox customisation
SEW-Eurodrive Editor's Choice Motion Control & Drives
When a mining operation in Mpumalanga found that one of its planetary gearboxes on a high-torque conveyor was failing, it called SEW-EURODRIVE for a solution. Leveraging the latest intelligent technology, the solution was a pioneering innovation providing a cost-effective replacement that will ensure reliable performance.

Read more...