Belts, keys and couplings
What it is
Power transmission belts, flexible keys and couplings in cast PU elastomers replace traditional rubber in applications requiring high torque capacity, oil resistance and extended service life. Significant market in gear motors and industrial transmissions.
The PU technology applied here is typically pu elastomers with textile reinforcement, selected for the combination of mechanical, chemical and processing properties suitable for the application. Specific formulations vary by equipment manufacturer or final integrator, but the base system has stable characteristics documented in technical literature and segment-specific standards.
Why it matters
For manufacturing industry and chemical processes, belts, keys and couplings is a decision where continuous-operation failure cost is high. Unplanned downtime on automated lines costs thousands per hour; critical equipment failure in chemical plants can stop entire operations with direct supply contract impact.
Current drivers. Industry 4.0 and growing automation increase criticality of specific components — one seal failing in a robotized hydraulic press stops the entire shift. Reshoring and industrial expansion in emerging markets (including Brazil with New Industry Brazil program) create new demand. Industrial sustainability via durability (reducing part replacement) competes with ESG pressure for bio-based materials and recyclability — and modern PU systems offer responses in both directions.
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Market
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Value proposition
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Related applications
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Technical molded parts (gears, bushings)
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