Mining-grade crushing equipment can achieve greater mechanical integrity and simplified maintenance using Climax Keyless Locking Devices, which outperform conventional keyed connections.

KLD Ensures Integrity Without Machining
Jaw crushers widely used in the mining industry, often rely on costly press or sweat fits, or traditional keyed connections. However, these approaches often come with several drawbacks. Keyed shafts must be oversized to compensate for reduced effective cross-section, increasing weight and cost – not just for the shaft itself, but for every component mounted on it. Additionally, keyways are prone to fretting corrosion, backlash, and are incapable of transmitting bending moments or axial loads.
Impact crushers incorporating interference-fit rotor-to-shaft connections require precision machining, specialized fixturing, high-capacity hydraulic presses, and substantial labor investment during assembly. Climax heavy-duty locking assemblies, such as the C405-Series, achieve the same mechanical integrity of interference fits while significantly reducing manufacturing complexity and cost, with a simplified machining investment. Additionally, these locking assemblies provide a robust solution for mounting drive sheaves, effectively eliminating the drawbacks associated with keyed connections – including fretting, backlash, and limited load transmission, as well as belt misalignment issues inherent to QD or XT bushings.
Mining machinery is engineered to endure some of the most demanding operational environments and extreme mechanical loads. Climax KLDs are purpose-built to meet these challenges, delivering high torque transmission, superior bending moment capacity, and axial thrust capacities. Unlike traditional interference fits or keyed connections, KLDs eliminate axial displacement during installation and remove stress caused by keyways. Eliminating the need for precision machining, heavy hydraulic tools, and complex fixturing, KLDs reduce manufacturing and assembly costs. Installation and removal can be performed using standard hand tools making them ideal for on-site maintenance.
Climax Metal Products can tailor products to fit precise application needs. Our experienced in-house engineers are ready to work together, designing a custom solution that fits your exact application needs.
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