Weima Electric (Shanghai) Ltd.

This two-stage, high-performance gearbox concept comes into play when extreme technical requirements exceed the usual limits of spur gearboxes or planetary gearbox. Power splitting gearboxes make it possible to transmit a large amount of power at the highest speeds of the input and output shafts while requiring the lowest possible space.

The input and output shafts are flush and have the same rotational direction. All gear teeth are freely adjustable to achieve uniform load distribution. The high-speed pinion does not have any bearings and is controlled via the meshing of the gear teeth. This technology makes it possible to attain outputs of up to 200 MW and speeds of up to 120,000 rpm.

The main feature of these RENK turbo gearboxes are the case-hardened, precisely machined flanks of the teeth, which are designed for API, AGMA, DIN, and ISO requirements according to the respective application. Every design is based on detailed rotordynamic calculations for all operating points. The geometries of our radial and axial bearings are therefore precisely optimized according to the respective application scenario as well as the operating conditions.

Features

• Co-axial arrangement with unidirectional rotation

• Extreme transmission powers

• Compact construction

• Low circumferential speeds

• Low movement of mass

• Integrated couplings possible

• Compensation of thermal axial forces

• Option to mount an oil pump or rotary drive

• Conservative gear tooth design according to API 613 possible

Technical Data

• Power: 3 - 300 MW

• Low speed shaft: < 15 000 rpm

• High speed shaft: < 50 000 rpm

• Ratio: 1,2 - 8

• Efficiency: 98.00%

We can provide original German RENK gearboxes, couplings, sliding bearings, RENK bearings, oil seals, oil rings, and other accessories, so no matter what brand of motor the customer uses (including but not limited to: TECO Motor , ABB motors, Siemens motors, WEG motors, Marathon motors), as long as they are equipped with RENK products, we can provide related RENK product services.