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FGR R A1A2 series

FGR R A1A2 series

Product catalog summary

Application Example: The document describes the use of the Complete Freewheel FGR 50 R A1A2 in a hydraulically released, spring-actuated multi-disk brake for winch drives. It functions as a backstop when the load is lifted and as a control mechanism when lowering the load, allowing for a simpler and more cost-effective hydraulic control design.

Product Specifications: The Complete Freewheels FGR … R A1A2 are sealed roller freewheels with ball bearings, oil lubricated, and feature nominal torques up to 68,000 Nm and bores up to 150 mm. They can be used as a backstop, overrunning clutch, or indexing freewheel.

Dimensions and Features: The document provides detailed dimensions for various sizes of freewheels, including bore diameter, mounting flange, and roller specifications. It highlights that freewheels with certain bore diameters are available with short delivery times. The maximum transmissible torque is twice the specified nominal torque.

Installation and Assembly: The freewheels are supplied with basic components such as the freewheel, flange, cover, seals, and screws, which must be assembled by the customer. The document specifies the required tolerances for the shaft and attachment part, and provides instructions for ordering, including specifying the freewheeling direction.

Ordering Information: An example is provided for ordering a freewheel size FGR 25 with standard type flange A1 and cover A2. Customers must specify if they require assembled, oil-filled freewheels and the freewheeling direction of the inner ring.

Catalog excerpts

Application as Backstop ► Overrunning Clutch ► Indexing Freewheel Features Complete Freewheels FGR ... R A1A2 with mounting flange are sealed roller freewheels with ball bearings. They are oil lubricated. Nominal torques up to 68 000 Nm. Bores up to 150 mm. Application example Complete Freewheel FGR 50 R A1A2, used in a hydraulically released, spring actuated multidisk brake for winch drives. When the load is lifted, the multiple-disk brake is closed and the inner ring is freewheeling. At a standstill, the freewheel functions as a backstop. The load is held by the brake and the locked freewheel. When lowering, the brake is released with control and the load is lowered via the locked freewheel.By using the freewheel, the hydraulic control could be designed in an simpler and more cost-effective manner.

Open the catalog to page 1

■ 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. * Z = Number of fastening holes for screws G (DIN EN ISO 4762) on pitch circle T. The customer attachment part is centered on the external diameter D and bolted on via flange A1. The tolerance of the shaft must be ISO h6 or j6 and the tolerance of the pilot diameter D of the attachment part must be...

Open the catalog to page 2

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*Prices are pre-tax. They exclude delivery charges and customs duties and do not include additional charges for installation or activation options. Prices are indicative only and may vary by country, with changes to the cost of raw materials and exchange rates.

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