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FGR … R A2A3 series

FGR … R A2A3 series

Product catalog summary

Application Example: The document describes the use of Complete Freewheel FGR … R A2A3 as a backstop at the end of an inclined conveyor belt. The backdriving torque is held by a lever arm with a holding pin on the foundation. Removing the holding pin allows the conveyor belt to turn in both directions.

Specifications: The Complete Freewheels FGR … R A2A3 are sealed roller freewheels with ball bearings, lubricated with oil. They are designed for low to medium speeds in freewheeling operations and can handle nominal torques up to 68,000 Nm with bores up to 150 mm.

Features: These freewheels are arranged on through shafts or shaft ends and are equipped with a lever arm and rollers. They are suitable for applications requiring backstops.

Mounting Instructions: The backdriving torque is supported by the lever arm with a holding pin, which must have 0.5 to 2 mm play in axial and radial directions. The shaft tolerance should be ISO h6 or j6. If the holding pin is removed, the shaft can rotate in both directions.

Ordering Information: When ordering, specify if the freewheels should be oil-filled and the freewheeling direction of the inner ring (counterclockwise or clockwise). The basic freewheel, lever arm, cover, seals, and screws are supplied loose unless otherwise stated.

Dimensions and Performance: The document provides a detailed table of dimensions and performance metrics for various sizes of freewheels, including nominal torque, maximum speed, bore diameter, and weight. Freewheels with bore diameters highlighted in blue are available with short delivery times. The maximum transmissible torque is twice the specified nominal torque.

Standards and Tolerances: Keyway dimensions follow DIN 6885, page 1, with a tolerance of keyway width JS10.

Catalog excerpts

Complete Freewheels FGR … R A2A3 with lever arm with rollers Application as ➧ Backstop for applications with low to medium speeds in freewheeling operation. Features Complete Freewheel FGR … R A2A3 with lever arm are sealed roller freewheels with ball bearings. They are oil lubricated. The freewheels FGR … R A2A3 are arranged on through shafts or shaft ends. Nominal torques up to 68 000 Nm. Bores up to 150 mm. Application example Complete Freewheel FGR … R A2A3 as backstop at the end of an inclined conveyor belt. The backdriving torque is helt by lever arm with holding pin on the fundament. When the holding pin is dismounted the conveyor belt can be turned in both directions.

Open the catalog to page 1

39-2 Standard type For universal use ■ Freewheels with bore diameters highlighted blue in the table are available with short delivery times. The maximum transmissible torque is 2 times the specified nominal torque. See page 14 for determination of selection torque. Keyway according to DIN 6885, page 1 • Tolerance of keyway width JS10. Mounting The backdriving torque is supported by the lever arm with holding pin. The holding pin engages in a slot or bore in the frame of the machine. It must have 0,5 to 2 mm play in the axial and radial directions. If the holding pin is removed,the shaft can be...

Open the catalog to page 2

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