• Custom Gears, Gearboxes and Related Components
• Engineered Couplings
• Electric Clutches, Brakes and Linear Actuators
• Overrunning and Bi-Directional Clutches and Backstops

Engineered Couplings
For Land-Based Applications

Ideal for:

• Turrets and gun mechanisms
• Towed and mobile systems
• Main driveline
• PTO drives
• Numerous other applications

Ameridrives Couplings, Bibby Transmissions, and Twiflex Ltd. have the broadest selection of coupling types preferred for many Land-based applications including Gear, Diaphragm, and Disc types, each with its own unique performance characteristics which can be optimized to solve the most rigorous Land-based application. Ameridrives, Bibby, and Twiflex engineers will work to understand the application parameters and develop the best coupling solution.

Ameridrives Couplings Gear Couplings Fully-crowned gear teeth provide operational benefits including maximum load-carrying capacity with minimum size, maximum reliability and long life Both “O” ring and metal seal models are available Strong, rigid floating sleeve Precision-machined identical hubs Positive dust-tight seals Customized applications in a number of US Army and Marine vehicles Ameridrives Couplings Ameridisc High Performance Disc Couplings Multi-scalloped, optimized disc profile results in even stress distribution Proprietary disc coating to prevent fretting and corrosion Custom pack fasteners allow for an optimized bolted connection No lubrication for maintenance free operation Low bending and axial reaction loads Industry leader in power density and bore capacity Ameridrives Couplings Ameriflex® High Performance Diaphragm Couplings High torque to weight ratio Sub-assemblies are field replaceable Diaphragms are 15-5 PH stainless steel Multiple separated diaphragms in a pack provide a built-in, fail-safe feature, with no wearing parts Unlimited possibilities for customization for Land-based applications Bibby Turboflex TurboFlex HP Couplings These torsionally stiff, light weight couplings are capable of transmitting high torques at high speeds while accepting significant levels of angular, radial, and axial misalignment They are easy to install, suitable for hostile environments, require no lubrication and feature a high torque to weight ratio Specific designs are available which meet the customer’s exact requirements Standard units are compliant with API 671 (American Petroleum Institute) and ATEX 94/9/EC Torque Rating: Up to 5300000 lb.in. (600 kNm) No maintenance Standard and reduced moment designs available Capable of being torsionally tuned to suit specific machinery requirements Ameridrives PT Americardan® Universal Joints Model J Series U-joints use only high-wing bearing cap design Developed for operation misalignment at high angles up to 15° Bearing and seal design resists lubrication loss and contamination Ideal for use in severe atmospheric conditions Tapered-shoulder trunnions reduce bending stress Double-lip seal protects against grease leakage Glass filled Nylon compound thrust bearings minimize friction and reduce galling Exclusive accurately-guided roller bearings prevent skewing Twiflex Limited Layrub Couplings The Layrub range of couplings is a long established but still unique design based on a range of twelve standard blocks Generally used to cover the low to medium power ranges up to torque ratings of 64 kNm Blocks can be used in parallel leading to compactness and making the coupling suitable for high speed operation or in series to provide a torsionally soft coupling and to accommodate large mis-alignments These units have been successfully applied in the drivetrains on a variety of United Kingdom MOD vehicles     Twiflex Limited Laylink Couplings The Laylink coupling employs pre-compressed rubber blocks but in a link type configuration. The links are arranged circumferentially between the driving and driven flanges The power and speed of the application is matched by selecting from a range of link designs, the number of links employed and the mounting pitch circle diameter Computer simulation is used to test and calculate the operational characteristics of designs The Laylink couplings have a high torsional stiffness which allow them to transmit particularly large torques and support heavy floating shafts, whilst the link configuration allows the couplings to accommodate large levels of misalignment and movement between the driving and drive equipment