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RINGSPANN
FBL series

FBL series

Product catalog summary

Application Example: The document describes the use of a Complete Freewheel FBL 82 SFZ as an overrunning clutch in a conveyor belt system with an additional creep drive. The freewheel is positioned between the main motor and the creep drive. During creep drive operation, the freewheel drives the belt at low speed. In normal operation, the main motor takes over, and the outer ring overruns, disengaging the creep drive automatically. The sprag lift-off Z type is used for high-speed operations, ensuring wear-free performance.

Features: Complete Freewheels FBL with RINGSPANN shaft coupling are sealed sprag freewheels with ball bearings, designed for coupling two shafts. They are pre-filled with oil and ready for installation. The freewheels can handle nominal torques up to 8,000 Nm and bores up to 140 mm. The RINGSPANN-Shaft Coupling accommodates large radial and angular misalignments without affecting neighboring bearings.

Types Available: The document lists three types of freewheels: the standard type for universal use, a type with RIDUVIT® for extended service life with coated sprags, and a type with Sprag lift-off Z for extended service life at high-speed operations.

Technical Specifications: The document provides detailed specifications for various freewheel sizes, including nominal torque, maximum speed, and dimensions. It also includes a table with data on different freewheel models, such as FBL 37, FBL 44, FBL 57, etc., with their respective torque and speed ratings.

Mounting Instructions: The flexible disk of the shaft coupling must be axially free to prevent distortion of the ball bearings due to heat expansion. The shaft coupling and fastening screws are supplied loose, and the coupling can be fitted on either side of the freewheel depending on the desired freewheeling direction. Shaft tolerance must comply with ISO h6 or j6 standards.

Ordering Example: An example is provided for ordering a freewheel size FBL 72 with sprag lift-off Z and specific bore dimensions.

Catalog excerpts

Application as ► Overrunning Clutch Features Complete Freewheels FBL with RINGSPANN shaft coupling are sealed sprag freewheels with ball bearings for coupling two shafts. They are supplied oil-filled and ready for installation In addition to the standard type, two other types are available for extended service life. Nominal torques up to 8 000 Nm. Bores up to 140 mm. Many standard bores are available. The torsionally stiff RINGSPANN-Shaft Coupling can accept large radial and angular misalignments, without reactive forces affecting neighbouring bearings. We can provide you with performance data upon request. Application example Complete Freewheel FBL 82 SFZ as an overrunning clutch in the drive unit of a conveyor belt system with additional creep drive. The freewheel with shaft coupling is arranged in between the main motor and the creep drive. When the creep drive operates, the freewheel is in driving operation and drives the belt at low speed. In normal operation (freewheeling operation), the main motor drives and the outer ring overruns, whereupon the creep drive is automatically disengaged. With the high speed here, the type sprag lift-off Z is used; the sprags work in freewheeling operation without contact and hence are wear-free.

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49-1 Mounting The flexible disk of the shaft coupling must be axially free when fitted so that the ball bearings in the freewheel are not distorted due to heat expansion. The shaft coupling including the fastening screws are supplied loose. Depending on the desired freewheeling direction, the shaft coupling can be fitted on the right or the left of the freewheel. Example for ordering Freewheel size FBL 72, type with sprag lift-off Z and 40 mm bore in the freewheel and 50 mm bore in the shaft coupling: • FBL 72 LZ, d1 = 40mm, d3 = 50mm Standard type For universal use For bore d1: Keyway according...

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FBL series

FBL series

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