Brake:<\/strong> Integrated hydraulic or electromagnetic fail-safe parking brakes.<\/li>\n<\/ul>\nHelical-Bevel Units for Hoist Mechanisms<\/h3>\n
For the main hoist, reliability is paramount. Our K-series spiral bevel gearboxes achieve an efficiency of up to 96%, effectively reducing the heat load on the electrical compartment. Combined with our balanced high-speed composite drive shaft, noise levels in the operator’s compartment are significantly reduced, meeting the noise exposure limits set by the UK Health and Safety Executive (HSE).<\/p>\n
Customized Lubrication for the UK Climate<\/h3>\n
Standard gearboxes often ship with mineral oil suitable for Central Europe. For our UK clients, we pre-fill gearboxes with synthetic polyalphaolefin (PAO) based lubricants with a wider viscosity index. This ensures that a crane in Grangemouth can start up instantly at -5\u00b0C on a Monday morning without inducing high starting torque on the drive shaft and motor.<\/p>\n
The “Complete Driveline” Warranty<\/h3>\n
When you source both the Cardan Shaft and the Gearbox from us, we bridge the warranty gap. Usually, a shaft failure blamed on the gearbox (or vice versa) leads to supplier disputes. By integrating the supply chain, we offer a 3-Year System Warranty covering the interface between the flange and the input shaft.<\/p>\n
![\"Kardanwelle\"](\"https:\/\/www.pto-drive-shafts.com\/wp-content\/uploads\/2026\/01\/ep-pto-drive-shafts.com-33-1-1.webp\")
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See our full catalog for compatible replacements for Brevini, Bonfiglioli, and Reggiana Riduttori planetary drives. (Names for reference only).<\/em><\/p>\nStrategic Spares & Consumables<\/h2>\n
To maintain uptime, every port maintenance workshop should stock critical interface components. We supply:<\/p>\n
Universal Joint Kits (U-Joints)<\/h4>\n
Featuring our “Triple-Guard” seal technology. Available in sizes from 57mm to 200mm cup diameter.<\/p>\n
Flange Yokes (Quick Release)<\/h4>\n
For rapid change-outs during short maintenance windows (e.g., lunch breaks). Cross-serrated flanges for high-torque friction grip.<\/p>\n
Center Support Bearings<\/h4>\n
Self-aligning bearings with varying rubber hardness (Shore A 45-70) to tune vibration isolation frequencies.<\/p>\n
Frequency Asked Questions (Technical)<\/h2>\n\nHow often should we grease RTG drive shafts in a coastal environment?<\/summary>\nFor cranes operating in high-salinity zones like Felixstowe or Dover, we recommend shortening the standard greasing interval from 500 hours to 250 hours. However, if using our Marine-Spec shafts with Viton seals, you can safely maintain a 500-hour interval. Always use Lithium Complex EP2 grease with corrosion inhibitors.<\/div>\n<\/details>\n
\nCan you retrofit a drive shaft if the original drawings are missing?<\/summary>\nYes. Our UK engineering team can perform an on-site survey. We need to measure the Compressed Length, Extended Length, Flange Diameter, and Bolt Hole Pattern. We can reverse-engineer a custom shaft within 48 hours for emergency breakdown situations.<\/div>\n<\/details>\n
\nWhat is the advantage of using a cardan shaft over a gear coupling for the hoist?<\/summary>\nCardan shafts accommodate significantly more misalignment (up to 25 degrees) compared to gear couplings (typically < 1 degree). This allows for chassis flex in the crane structure without imposing destructive radial loads on the gearbox bearings, extending the life of your main hoist reducer.<\/div>\n<\/details>\n
![\"Kardanwelle\"](\"https:\/\/www.pto-drive-shafts.com\/wp-content\/uploads\/2026\/01\/ep-pto-drive-shafts.com-32-1-1.webp\")
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