Machine Design

Dual-Ratio Planetary Drive

The GFT 45 T2/T3 is a dual-ratio planetary drive.

It functions as a two-stage drive for low-ratio (high-speed) operation and the third stage can be engaged for high-ratio (low-speed) operation. It produces maximum intermittent output torque of 45,000 N-m and maximum output speed of approximately

150 rpm. Advantages include a wide speed range and the ability to offer two different reduction ratios in one package. It can shift on-the-fly between reduction ratios, and operates at high speeds without the need for external cooling.

Bosch Rexroth Corp., Mobile Hydraulics,
551 Telser Rd., Lake Zurich, IL 60047,
(847) 550-9800,
boschrexroth-us.com

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