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FB Series EN

FB Series EN

FB Series EN

Product catalog summary
Application Example: The document describes the use of two Complete Freewheels FB 82 SFT as overrunning clutches in the drive of an edge trimming shear in a wide strip roll train. During the trimming process, the freewheels operate in driving mode, and when the strip is pulled by the next rollers, they switch to freewheeling mode, enhancing service life with RIDUVIT® sprags.
Specifications: Complete Freewheels FB are sealed sprag freewheels with ball bearings, available in four types for applications such as Backstop, Overrunning Clutch, and Indexing Freewheel. They are oil-filled and ready for installation, with options for biodegradable oil. Nominal torques reach up to 160,000 Nm, and bores up to 300 mm are available.
Mounting Instructions: The attachment part is mounted on the external diameter D and bolted to the face. Shaft tolerance must be ISO h6 or j6, and the pilot diameter D of the attachment part must be ISO H7 or J7.
Ordering Information: When ordering, specify the freewheel size, type, and bore. For sizes FB 340 and FB 440, also specify the freewheeling direction of the inner ring.
Technical Data: The document includes a detailed table listing dimensions, weights, nominal torques, and maximum speeds for various freewheel sizes. It also specifies the number of tapped holes and keyway dimensions according to DIN standards.
Types and Features: The document outlines different types of freewheels, including standard, RIDUVIT® coated for extended life, and types with sprag lift-off for high-speed applications. Each type is designed for specific operational needs, such as indexing, overrunning, or backstopping.
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Catalog excerpts

FB Series EN-1

Complete Freewheels FB for bolting to the face with sprags, available in four types Application as ➧ Backstop ➧ Overrunning Clutch ➧ Indexing Freewheel Features Standard type, type with RIDUVIT® or sprag lift-off Z Type with sprag lift-off X Complete Freewheels FB are sealed sprag freewheels with ball bearings. They are supplied oil-filled and ready for installation, on customer request with biodegradable oil. In addition to the standard type, three other types are available for extended service life. Nominal torques up to 160 000 Nm. Bores up to 300 mm. A multitude of standardized bore diameters are available with short delivery times. Application example Two Complete Freewheels FB 82 SFT as overrunning clutches in the drive of an edge trimming shear in a wide strip roll train. When trimming the edges of the strip, the trimming rollers are driven by the drive of the edge trimming shear. By doing so, the two freewheels work in driving operation. As soon as the sheet metal strip is gripped by the next pair of rollers, they pull the strip at an increased speed and the inner rings overrun the slower turning drive of the edge trimming shear. By doing so, the freewheels work in freewheeling operation. The RIDUVIT® sprags give the freewheels an extended service life. The customer attachment part is on the external diameter D and then bolted on to the face. 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 ISO H7 or J7. Freewheel size FB 72, type with sprag lift-off Z and 40 mm bore: • FB 72 LZ, d = 40 mm When ordering freewheel size FB 340 and FB 440, please also specify the freewheeling direction of the inner ring when viewed in direction X: • counter-clockwise free or • clockwi

 Open the catalog to page 1
FB Series EN-2

Standard type Keyway according to DIN 6885, page 1 • Tolerance of keyway width JS10. * Keyway according to DIN 6885, page 3 • Tolerance of keyway width JS10. ** Z = Number of tapped holes G on pitch circle T.

 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.