Free Standards Download

An offshore jack-up driling rig is a barge upon which a driling platform is placed. The barge has legs which can be lowered to the sea floor to support the rig. Then the barge can be“jacked-up' out...

In recent years gearbox technology has advanced and Original Equipment Manufacturers (OEM) have required gear oils to meet the lubrication requirements of these new designs. Modern gearboxes operate under severe conditions and maintain their reliability to ensure...

QuesTek Innovations LLC is applying its Materials by Design⑧computational design technology to develop a new class of high strength, secondary hardening gear steels that are optimized for high-temperature, low-pressure (ie., vacuum) carburization. The alloys offer three different...

Powder metal (P/M) process is making inroads in automotive transmission applications because of substantially lower cost of P/M steel components for high volume production as compared to wrought or forged steel parts. Although P/M gears are increasingly...

Micropitting has become a major concern in certain classes of industrial gear applications, especially wind power and other relatively highly loaded somewhat slow speed applications, where carburized gears are used to facilitate maximum load capacity in a...

Any transmission design requires meticulous attention to detail including gear engineering, required performance, and manufacturing methodology. Plastic geared transmissions are no different in many ways than metal; however they do require a unique knowledge of the materials,...

Gear engineers have long recognized the importance of considering system factors when analyzing a single pair of gears in mesh. These factors include important considerations such as load sharing in multi-mesh geartrains and bearing clearances, in addition...

A recent trend has been a movement to more user friendly products in the mechanical power transmission industry. One of these more user friendly styles is a high horsepower, right angle shaft mounted drive designed to minimize...

Military tracked vehicles demand a very compact transmission to meet mobility requirements. A compact transmission with low operating noise and vibration is desirable in military tracked vehicles to reduce weight and improve power to weight ratio. It...

Minimizing gear losses caused by churning, windage and mesh friction is important if plant operating costs and environmental impact are to be minimized. The paper concentrates on mesh friction losses and associated scuffing risk. Itdescribesthepreliminaryresultsfrom using avalidated...